CN107743360A - Purposes of some Herbicidal combinations in root crop plant - Google Patents

Abstract

It is used to prevent and treat in root crop plant the invention mainly relates to the Herbicidal combination comprising (i) flufenacet and (ii) Diflufenican or the composition comprising this Herbicidal combination, the purposes of noxious plant preferably in cassava.The invention further relates to the particular herbicide conjugate or plant growth regulator of the composition as root crop plant comprising the particular herbicide conjugate, the purposes of the plant growth regulator preferably as cassava.In addition, the present invention relates to the correlation method of the noxious plant in preventing and treating root crop plant, and it is related to the correlation method of the plant growth of regulation root tuber crop plants.

Description

Purposes of some Herbicidal combinations in root crop plant

The invention mainly relates to include (i) flufenacet (flufenacet) and (ii) Diflufenican (diflufenican) Herbicidal combination or composition comprising this Herbicidal combination be used to prevent and treat in root crop plant, preferred cassava (cassava) purposes of the noxious plant in.Specific removed the invention further relates to the particular herbicide conjugate or comprising described Plant growth regulator of the composition as root crop plant of careless agent conjugate, the plant growth regulating preferably as cassava The purposes of agent.In addition, the present invention relates to the correlation method of the noxious plant in preventing and treating root crop plant, and it is related to regulating block The correlation method of the plant growth of root crop plants.

Cassava (Manihot esculenta Crantz) is the main source of the carbohydrate of several hundred million people, is mainly existed Africa and to some extent in Asia and Latin America.In Africa, cassava production is generally relatively low, and this is largely Due to the influence of weed competition, or due to the weed growth do not prevented and treated or do not prevented and treated fully.Hoe weeding is still cassava peasant Practice.

The 11st ISRTC-AB meeting that 4 to 8 October in 2010 holds in Kinshasa of cd Record the 269-275 pages and report assessment of the commercial herbicide to the control of weeds of cassava.Processing therein is including the use of such as chlorine Antifebrin (chloroacetanilide), prometryn (prometryn) or S- isopropyl methoxalamines (S-metolachlor) Herbicide before seedling stage.

In No. 17 crop of the Ministry of Agriculture of Barbados is suggested, it is noted that removed for preventing and treating the following of the weeds in cassava Careless agent：Paraquat (paraquat) (optionally being mixed with diquat dibromide (diquat)), glyphosate (glyphosate), careless sulphur phosphorus (sulfosate), pendimethalin (pendimethalin), isopropyl methoxalamine (metolachlor), fluazifop (fluazifop-butyl), sethoxydim (sethoxydim) or propaquizafop (propaquizafop).

CN102428919A teaches a kind of after seedling cassava field with mesotrione (mesotrion) for active component Herbicide.

CN103392724A propositions use ternary herbicidal composition, and as cassava field herbicidal, it contains following activearm Point：Halosulfuronmethyl (halosulfuron), Oxyfluorfen (oxyfluorfen) and selected from butachlor (butachlor), The amide herbicide of propisochlor (propisochlor) and isopropyl methoxalamine (metolachlor).

GB 1,028,976 discloses a kind of plant such as cassava, sweet potato (sweet for being used for processing and having storage organ Potato) or Chinese yam (yam) method, its be included in harvesting before in special time with substitution benzoic acid herbicides spray Plant.Wherein, preferably such as (being optionally further substituted with) two, three or the herbicide of tetrachloro-benzoic acid.

African Crop Science Journal 1994,519-530 report weeds and its preventing and treating in cassava. Wherein, following herbicide is mainly tested：Metobromuron (metobromuron), fluometuron (fluometuron), prometryn (prometryn) (optionally with ametryn (ametryne) combine), terbutryn (terbutryn), paraquat (paraquat) and Diuron (diuron).

Planta Daninha, 2010,28 (4), 807-816 are described different herbicides applied to miscellaneous in cassava Grass.Wherein report especially as diuron, metribuzin (metribuzin), isoxaflutole (isoxaflutole), green bristlegrass are gone Tianjin (atrazine), the herbicide of ametryn (ametryn) and several conjugates comprising the herbicide are in Brazil bar Draw the influence of two kinds of Cassava Cultivars of that state growth.

It is hitherto known to be used to preventing and treating noxious plant in root crop plant or undesired plant in its application Weeding crop protection agents (herbicide) have some shortcomings, the shortcoming be (a) they do not have to specific noxious plant or Person has the activity of weeding of deficiency, and (b) can be not wide enough with the noxious plant spectrum that the herbicide is prevented and treated, and/or (c) herbicide is in block Selectivity in root crop plants and too low with the compatibility of root crop plant, so as to cause the undesirable of root crop Infringement and/or the reduction of undesirable harvesting amount.

In general, so far in root crop plant using herbicide activity of weeding (for the use of above-mentioned (a) and (b)) And/or selectivity/compatibility (above-mentioned aspect (c)) is there is still a need for improve.

For these reasons, it is still desirable to for selective application to prevent and treat noxious plant in root crop plant or not The high activity herbicide or Herbicidal combinations of the replacement of desired plant.

Surprisingly it has now been found that some Herbicidal combinations or the composition performance comprising the Herbicidal combination Go out desired activity of weeding and can selectively prevent and treat the noxious plant in root crop plant or undesired plant.

The invention mainly relates to a kind of conjugate of herbicide (Herbicidal combination) or a kind of combination for including herbicide The purposes of the composition of thing (Herbicidal combination)：

- be used to prevent and treat the noxious plant in root crop plant,

And/or

- as the plant growth regulator in root crop plant,

The conjugate of wherein described herbicide include (i) flufenacet and (ii) Diflufenican or by (i) flufenacet and (ii) Diflufenican forms.

The invention further relates to the purposes of the composition defined in the context of the invention, the composition also wraps in addition The additive commonly used containing one or more in formulation auxiliary agents, crop protection and other agricultural chemical activity compounds are (i.e. not The agricultural chemical activity compound of component (i) as defined above and (ii) is same as, i.e., except (i) flufenacet and (ii) pyrrole fluorine grass Agricultural chemical activity compound beyond amine) other components.

However, the conjugate of the herbicide used in the context of the invention is by herbicide (i) flufenacet and (ii) Diflufenican form when, it means that in the case, the conjugate of the herbicide used in the context of the invention or comprising The composition of the conjugate of herbicide used in the context of the invention does not contain any other and removed (i.e. without extra) Careless active component, and preferably do not contain any other agricultural chemical activity compound.

In this context, term " other herbicidal active components " and " other agricultural chemical activity compounds " refer to remove respectively Herbicide and agricultural chemical activity compound (agricultural chemicals) beyond flufenacet and Diflufenican, it is listed in " The Pesticide Manual ", the 16th edition, the Britain crop protection committee and Royal Institute of Chemistry, 2012.

Herbicidal combination used according to the invention and the composition comprising the Herbicidal combination are not only being prevented and treated Show excellent activity of weeding in terms of noxious plant in root crop plant or undesired plant, but also show with The compatibility of root crop plant, i.e., described herbicide will not cause root crop notable infringement (such as phytotoxicity) and/or The reduction of undesirable harvesting amount.

Herbicidal combination used according to the invention and include the Herbicidal combination used according to the invention Composition allows to realize that excellent (total) is miscellaneous in level of the infringement in agronomically acceptable infringement of root crop plant Grass preventing and treating.In addition, the composition with Herbicidal combination used according to the invention and comprising the Herbicidal combination is seen The infringement type observed does not have obvious harmfulness, and impacted root crop plant is largely or entirely from the infringement Recover in type.For example, in biological example below, with the combination for including Herbicidal combination used according to the invention Phytotoxic effect is not observed after thing processing cassava plant.

In addition, Herbicidal combination used according to the invention and including the herbicide used according to the invention and combining The composition of thing may be used as the plant growth regulator of root crop plant, be preferably used as the plant growth regulator of cassava, It is (special so as to increase the plant growth of the harvesting amount of root crop plant (the particularly weight of root tuber) and/or increase root crop It is not the growth of the leaf of root crop plant), in each case with the root crop plant of unused herbicide treatment (not Control through processing) compare.

Combination present invention is preferably related to the conjugate of the herbicide defined in the context of the invention or comprising herbicide The purposes of the composition of thing, wherein the root crop plant is selected from sweet potato (Ipomoea batatas), cassava (Manihot Esculenta) and Chinese yam (plant species in Dioscorea (Dioscorea)), more preferably wherein described root crop plant are Cassava (Manihot esculenta).

Herbicide used in the context of the invention is known per se, and is especially recorded in " The Pesticide Manual ", the 16th edition, the Britain crop protection committee and Royal Institute of Chemistry, 2012, and document cited therein.At this Herbicide used herein describes more fully below up and down for invention.

Herbicidal combination used in the context of the invention and include the weeding used in the context of the invention Some compositions of agent conjugate are known per se.Herbicidal combination used in the context of the invention and include this Some compositions of Herbicidal combination used in invention context are commercially available.

Root tuber (tuberous root) (also known as root tuber (root tuber)) is a kind of perennial organ, and it is to plant The thick root for the period stored nutrient material that thing can not actively grow, therefore can be connect 1 year and survived with 1 year.

Stem tuber should not be obscured with root tuber.Stem tuber is abnormal bud, and root tuber is abnormal root.

Root tuber is the lateral root of a species transformation, and storage organ is played a part of in its increase.Root tuber or the increase region of storage root Can be in the end of root or middle generation, or it is related to whole root.Therefore its origin is different from stem tuber, but in function and in appearance It is similar to stem tuber.The example of plant with notable root tuber includes sweet potato, cassava, Chinese yam and dahlia (dahlia).

Cassava (Manihot esculenta Crantz) is also referred to as manioc, yuca, balinghoy or kamoteng Kahoy (in Philippine), tabolchu (in Northeastern India), mogo (in Africa), mandioca, tapioca-root, Kappa (mainly in India) and manioc root, it is a kind of Euphorbiaceae (Euphorbiaceae for originating in South America (spurge) woody brush), it is used as annual crop to cultivate extensively in the torrid zone and Asia heat because of its edible starch root tuber Band area, it is the main source of carbohydrate.Cassava is referred to as tapioca starch when drying powdering (or bead) extract； Its sheet variant to ferment is named as Gary (garri).

Cassava is the third-largest source of torrid areas food carbohydrate after rice and corn.Cassava is in development The main staple food of country, to provide basic diet more than 500,000,000 people.It is one of most drought-enduring crop, can be in marginal soil Grown on earth.Nigeria is cassava producing country the biggest in the world, and Thailand is the maximum exported country of dry cassava.

Cassava produces less and less storage root in weeds Tanaka's undergrowth.

Chinese yam is the common name of some plant species of Dioscorea (Dioscoreaceae (Dioscoreaceae)), and its formation can Feeding habits stem tuber.It is because of the consumption of its starch stem tuber and in the cultivation of Africa, Asia, Latin America, the Caribbean and Oceania Perennial herb liana.There are many Chinese yam cultigens.Although in some areas of America ＆ Canada, some sweet potatoes (Ipomoea batatas) kind is also referred to as Chinese yam, but itself and be not belonging to a part for Dioscoreaceae.

Chinese yam is monocotyledon, relevant with lily and grass.Originate in Africa and Asia Chinese yam stem tuber from Fritter is to more than 60 kilograms.Chinese yam has individual kind more than 600 and 95% in these crops is planted in Africa.

According to the present invention, statement " composition " includes the composition for including Herbicidal combination as herein defined, and And can be used in the form of various acceptable or agronomically typical with preparation, such as made in the form of single " i.e. with mix " With.

For the Herbicidal combination used in the context of the invention and comprising used in the context of the invention What the herbicide (i) of the composition of Herbicidal combination and (ii) can be made up of the independent preparation of single reactive compound Spraying mixture, such as " tank mix " are combined, or the composition can be applied in combination in a sequential manner when applying Single-activity composition, i.e., within the extremely short time, such as (and preferably less than 24 hours) are applied one by one in a few houres With.

Include all stand for the herbicide (i) in the Herbicidal combination used in the context of the invention and (ii) Body isomers and its mixture, especially also include racemic mixture and --- if enantiomter there may be --- Corresponding bioactivity enantiomter.

If using the shorthand of the adopted name of reactive compound in the context of the present specification, it is every kind of In the case of all include all conventional derivatives, such as ester and salt, and isomers, particularly optical isomer, it is particularly commercially available Available one or more forms.If adopted name represents ester or salt, it also includes every other normal in each case Derivative is advised, such as other esters and salt, free acid and neutral compound, and isomers, particularly optical isomer, particularly city Sell available one or more forms.Given compound name represents at least one compound covered by adopted name, Typically preferable compound.In the case of sulfonamide such as sulfonylureas, salt also includes by using cation exchange sulfonamide Hydrogen atom on group and the salt formed.

The salt of compound used in the context of the invention can be with corresponding alkali metal salt, alkali salt or ammonium salt Form use, preferably in the form of corresponding alkali metal salt use, more preferably in the form of corresponding sodium or sylvite, most preferably In the form of corresponding sodium salt.

Flufenacet (IUPAC- titles：The fluoro- N- isopropyls -2- of 4'- [5- (trifluoromethyl) -1,3,4- thiadiazoles -2- bases Epoxide] antifebrin, CAS registration number 142459-58-3) it is recorded in such as A1 of EP 0 348 737 and the A of US 4,968,342.

Diflufenican (IUPAC- titles：Bis- fluoro- 2- of 2', 4'- (fluoro- toloxyl of α, α, α-three) nicotinanilide, CAS Registration number 83164-33-4) it is recorded in such as A1 and US4,618,366 A of EP 0 053 011.

The A2 of the WO 94/02014 and A of US 5,759,955 are related to some heterocycle aryloxy group acetamides and other herbicides Herbicidal combination.Wherein especially describe the combination of flufenacet and Diflufenican.

The A2 of WO 2007/112834 are related to herbicidal composition as the dispersion for including Diflufenican and flurtamone.Its In particularly disclose the water-borne dispersions for including Diflufenican, flurtamone and flufenacet.

According to the present invention, Herbicidal combination as herein defined or Herbicidal combination as herein defined is included Composition include the Herbicidal combination of herbicidally effective amount, and other components can be included, such as different types of Conventional additives in agricultural chemical activity compound and/or formulation auxiliary agents and/or crop protection, or its can with they one Rise and use.

According to the present invention, Herbicidal combination as herein defined or Herbicidal combination as herein defined is included Composition can be applied over time in the form of separate administration.Another possibility is single as herein defined Herbicide (i) and (ii) or Herbicidal combination are applied and (sequentially applied) with some, such as in the laggard of preemergence application Row postemergence application, or applied after being applied in after seedling early stage in after seedling mid-term or later stage.

Preferably simultaneously or almost simultaneously apply herbicide (i) as herein defined and (ii).In latter event Under, herbicide (i) as herein defined is almost administered simultaneously and (ii) means herbicide (i) flufenacet and herbicide (ii) Diflufenican was applied in 24 hours, preferably in 12 hours, more preferably in 6 hours, even more preferably in 3 hours.

In an especially preferred embodiment, herbicide (i) as herein defined is used together with (ii), i.e., same When use.Therefore, in an especially preferred embodiment, using including herbicide (i) as herein defined and (ii) Composition.

In a preferred embodiment, herbicide (i) used according to the invention is with (ii) or comprising according to this The composition for inventing the herbicide (i) used and (ii) is used only once per season.It has been found that weeding used according to the invention Agent (i) and (ii) or per season applied once comprising herbicide (i) used according to the invention and the composition of (ii) are enough The effect described in the context of the invention is realized, especially with regard to activity of weeding (above-mentioned aspect (a) and (b)) and/or selection Property/compatibility (above-mentioned aspect (c)).

In a preferred embodiment, herbicide (i) used according to the invention is with (ii) or comprising according to this The composition each calendar year for inventing the herbicide (i) used and (ii) applies once, twice or thrice, i.e., annual according to the Gregorian calendar It is applied once, administered twice or apply three times.

In a preferred embodiment, herbicide (i) used according to the invention is with (ii) or comprising according to this The composition each calendar year for inventing the herbicide (i) used and (ii) applies once, i.e., is applied once a year according to the Gregorian calendar.

In a preferred embodiment, herbicide (i) used according to the invention is with (ii) or comprising according to this The composition for inventing the herbicide (i) used and (ii) was applied once in about 12 months, i.e., the applied once in about 12 months.

When using herbicide (i) as herein defined and (ii) or comprising herbicide (i) as herein defined and (ii) observed effect allows the species that more effective herbicide effect, preventing and treating can not be prevented and treated so far during composition The required application times of (active breach (activity gap)), the administration period extended and/or reduction, and therefore for making For user, the more favourable control of weeds system from the point of view of economy and ecological view.

As described above, as herein defined herbicide (i) and (ii) or comprising herbicide (i) as herein defined and (ii) composition can be used for preemergence application and/or postemergence application.

Preferably, herbicide (i) defined herein and (ii) or herbicide (i) as herein defined and (ii) are included Composition be used for preemergence application.

In Herbicidal combination used according to the invention and/or including herbicide combination used according to the invention In the composition of thing, the weight of the total amount of herbicide (i) flufenacet and (ii) Diflufenican is than preferably in following scope：

(i) ratio of flufenacet and (ii) Diflufenican is 10:1 to 1:3,

The total amount meter of (i) flufenacet and (ii) Diflufenican in the conjugate based on the herbicide.

It is highly preferred that in Herbicidal combination used according to the invention and/or comprising used according to the invention In the composition of Herbicidal combination, the weight ratio of the total amount of herbicide (i) flufenacet and (ii) Diflufenican is in following model Enclose：

(i) ratio of flufenacet and (ii) Diflufenican is 8:1 to 1:2,

The total amount meter of (i) flufenacet and (ii) Diflufenican in the conjugate based on the herbicide.

Even further preferably, in Herbicidal combination used according to the invention and/or comprising being made according to the present invention In the composition of Herbicidal combination, the weight ratio of the total amount of herbicide (i) flufenacet and (ii) Diflufenican with Lower scope：

(i) ratio of flufenacet and (ii) Diflufenican is 6:1 to 1:1,

The total amount meter of (i) flufenacet and (ii) Diflufenican in the conjugate based on the herbicide.

It is particularly preferred that in Herbicidal combination used according to the invention and/or comprising used according to the invention Herbicidal combination composition in, the weight ratio of herbicide (i) flufenacet and the total amount of (ii) Diflufenican is following Scope：

(i) ratio of flufenacet and (ii) Diflufenican is 5:1 to 2:1,

The total amount meter of (i) flufenacet and (ii) Diflufenican in the conjugate based on the herbicide.

Most preferably, in Herbicidal combination used according to the invention and/or comprising used according to the invention In the composition of Herbicidal combination, the weight ratio of the total amount of herbicide (i) flufenacet and (ii) Diflufenican is in following model Enclose：

(i) ratio of flufenacet and (ii) Diflufenican is 5:1 to 3:1,

The total amount meter of (i) flufenacet and (ii) Diflufenican in the conjugate based on the herbicide.

In a particularly preferred embodiment of the present invention, in Herbicidal combination used according to the invention And/or in the composition comprising Herbicidal combination used according to the invention, herbicide (i) flufenacet and (ii) pyrrole fluorine The weight ratio of the total amount of careless amine is in following scope：

(i) ratio of flufenacet and (ii) Diflufenican is 4.5:1 to 3.5:1, even more preferably described weight ratio is about 4:1,

The total amount meter of (i) flufenacet and (ii) Diflufenican in the conjugate based on the herbicide.

The preferred rate of application of herbicide used in the context of the invention as herein defined is [with g a.i./ha tables Show, i.e. the grams of per hectare active component] it is as follows：

In all the embodiment above, the total amount of preferably (i) flufenacet and (ii) Diflufenican is no more than 1000g A.i./ha, preferably equal to or smaller than 800g a.i./ha, and more preferably 60 to 750g a.i./ha.

Flufenacet is preferably applied with 50 to 600g a.i./ha ratio, more preferably with 100 to 500g a.i./ha's Ratio, even more preferably with 150 to 400g a.i./ha ratio, particularly preferably with 175 to 350g a.i./ha ratio.

Diflufenican is preferably applied with 10 to 150g a.i./ha ratio, more preferably with 25 to 150g a.i./ha ratio Rate, even more preferably with 40 to 100g a.i./ha ratio, particularly preferably with 45 to 90g a.i./ha ratio.

In addition, herbicide (i) and (ii) can for example pacify with other agricultural chemical activity compounds as herein defined Full agent, fungicide, insecticide, other herbicides are used together with other plant growth regulator, or with formulation auxiliary agents and work The additive commonly used in thing protection is used together.Additive has such as fertilizer and colouring agent.It is preferred in each case to carry above Arrive for the weight of flufenacet and Diflufenican ratio, and the above-mentioned administration for flufenacet and Diflufenican Rate or rate of application scope.

Most important in the cassava field of the Colombia and most harmful weed species reported are (African Crop Science Journal 1994,519-530)：Fiddlehead (Pteridium aquilinum L.Kuhn), cogongrass (Imperata Cylindrica L.Beauv.), molasses grass (Melinis ninutiflora Beauv.), bur (Sida acuta Burm F.), the rhizome of nutgrass flatsedge (Cyperus rotundus L.), Drilgrass (Commelina diffusa Burm F.) subspecies Diffuse J.K.Morton, Ageratum conyzoides (Ageratum conyzoides L.) and Herba portulacae (Portulaca oleraceae L.), the rhizome of nutgrass flatsedge (Cyperus rotundus L (purple nutsedge)), Rottboellia exaltata L. F (Rottboellia exaltata (Lour) Clayton (Raoul grass)), johnson grass (Sorghum halepense L.Pers (Johnson grass)) and Ipomoea (Ipomoea sp. (morning glory (morning glory)).

In Nigeria, broad-leaved species are the most common weeds of all regions, averagely account for the 71- of all record species 78%.Only 17-19% weed species are grasses at present and 4-7% is sedge.Occur in whole survey area Five kinds of weed species, i.e. Ageratum conyzoides, alternanthera (Alternenthera sessilis L.R.Br.ex Roth), Brazil are bashfully Careless (Mimosa invisa Mart), flat branch lady's-grass (Digitaria horizontalis Willd) and big broomcorn millet (Panicum maximum Jacq)。

In the Nigeria west and south, it was observed that annual grassy weeds, particularly broad leaved weed are most common in cassava, and The species of generally existing are hairy euphorbia (Euphorbia hirta L.) and Talinum triangulate Willd.

African Crop Science Joumal .No.4 of volume 1994,2, the 519-530 pages summarizes in Ni Li Most common ten kinds of weed species in the Umuahia in sub- south cassava field：

It is the climing beans of Ageratum conyzoides, hair (Calopogonium mucunoides), alternanthera, Boreiria ocymoides, upright Commeline communis (Commelina erecta), fragrant eupatorium herb (Chromolaena odorata), Brazilian sensitive plant, rice packet grass (Commelina benghalansis), plumage awns chrysanthemum (Tridax procumbens), Brachiaria delfexa, Platostoma africanum, digitaria ciliaris (Digitaria adscendens), golden waist arrow (Synedrella Nodiflora), big broomcorn millet, the rhizome of nutgrass flatsedge, chufa (Cyperus esculentus).

Other the related weed species occurred in Nigeria's cassava field have (grass, sedge and broad leaved weed)： Cogongrass, Bermuda grass (Cynodon dactylon), grazing Chinese pennisetum (Pennisetum polystachion), Mariscus Alternifolius, painted euphorbia (Euphorbia heterophylla), rib axle Talinum crassifolium (Talinum triangulare).

The associated parasitic weed species occurred in cassava field (such as in Nigeria) have Cuscuta australis (Cuscuta australis)。

The combination of the conjugate of herbicide as herein defined or the conjugate comprising herbicide as herein defined Thing is to economically important harmful unifacial leaf of wide spectrum and dicotyledonous harmful plants in root crop plant, particularly in cassava With significant activity of weeding.

In the context of the present invention, " preventing and treating " is represented compared with undressed noxious plant, the growth of noxious plant Substantially reduce.Preferably, the growth of noxious plant reduces (60-79%) substantially, it is highly preferred that the growth of noxious plant is most of Or (80-100%) is suppressed completely, and especially, the growth of noxious plant is nearly completely or completely suppressed (90- 100%).

Preferably, the present invention relates to the conjugate of herbicide as herein defined or weeding as herein defined is included The purposes of the composition of the conjugate of agent, one of which, several or whole noxious plants are selected from following weed species：Ageratum (Ageratum spp.), the climing Macroptilium of hair (Calopogonium spp.), Alternanthera (Alternanthera spp.), Feng Hua Grass category (Boreiria spp.), Commelina (Commelina spp.), perfumed hair cream or oil Cymbidium (Chromolaena spp.), bashfully Grass category (Mimosa spp.), plumage awns Chrysanthemum (Tridax spp.), Brachiaria (Brachiaria spp.), Platostoma Category, knotgrass (Digitaria spp.), golden waist arrow category (Synedrella spp.), Panicum (Panicum spp.), Cyperus (Cyperus spp.), cogon (Imperata spp.), Cynodon (Cynodon spp.), Pennisetum (Pennisetum spp.), Mariscus Gaertn (Mariscus spp.), Euphorbia (Euphorbia spp.), Fameflower (Talinum spp.), Cyclosorus (Pteridium spp.), molasses grass category (Melinis spp.), chrysanthemum harvest spp (Sida Spp.), Herba portulacae category (Portulaca spp.), Rottboellia exaltata L. F category (Rottboellia spp.), sorghum (Sorghum Spp.), Ipomoea (Ipomea spp.), talon eria (Dactyloctenium spp.), Spigelia (Spigelia Spp.), Boerhaavia category, Aspilia category, Aneilima category, luxuriant thatch category (Hyparrhenia spp.), Andropogon (Rhynchelytrum spp.), Finger-millet belong to for (Andropogon spp.), Paspalum (Paspalum spp.), nakedflower murdannia herb category (Eleusine spp.), setaria (Setaria spp.), thorn capsule fiber crops category (Triumfetta spp.), false horsewhip category (Stachytarpheta spp.), beggar-ticks (Desmodium spp.), Gomphrena (Gomphrena spp.), gray wool Macroptilium (Tephrosia spp.), thorn bud fruit category (Acanthospermum spp.), bee saage category (Hyptis spp.), sandbur Belong to (Cenchrus spp.), smallpox category of ancient India (Urena spp.), Vernonia (Vernonia spp.), spiderflower category (Cleome spp.), Crotalaria (Crotalaria spp.), Kyllinga (Kyllinga spp.), Corchorus (Corchorus spp.), Ipomoea (Ipomoea spp.), Mitraearpus (Mitracarpus spp.), prostrate wedelia herb category (Melanthera spp.), Centrosema category (Centrosema spp.), tassel flower category (Emilia spp.), crotons category (Croton spp.), Leafflower (Phyllanthus spp.), Passiflora (Passiflora spp.), carpetweed category (Axonopus spp.), cerastium (Oldenlandia spp.), Schwenckia category, Acalypha (Acalypha Spp.), Coleus (Solenostemon spp.), feather cockscomb category (Celosia spp.), anil (Indigofera Spp.), Heterotis category, Herba Cancriniae lasiocarpae category (Acmella spp.), Leucaen (Leucaena spp.), punarnava category (Boerhavia spp.), duck tongue uncle (mother's brother) Huang belong to (Spermacoce spp.), seek rice grass category (Oplismenus spp.) and float Stroke grass category (Fimbristylis spp.).

At a preferable aspect, the present invention relates to the conjugate of herbicide as herein defined or such as this paper institutes are included The purposes of the composition of the conjugate of the herbicide of definition, one of which, several or whole noxious plants are selected from following weeds thing Kind：The climing Macroptilium of ageratum, hair, Alternanthera, Borreria, Commelina, perfumed hair cream or oil Cymbidium, Mimosa, plumage awns Chrysanthemum, arm Shape grass category, Platostoma category, knotgrass, golden waist arrow category, Panicum, Cyperus, cogon, Cynodon, Pennisetum, brick Seedling category, Euphorbia, Fameflower, Cyclosorus, molasses grass category, chrysanthemum harvest spp, Herba portulacae category, Rottboellia exaltata L. F category, sorghum, Ipomoea, Talon eria, Spigelia, punarnava category, Aspilia category, Aneilima category, luxuriant thatch category, Andropogon, Paspalum, nakedflower murdannia herb Shu, Finger-millet category, setaria, the numb category of thorn capsule, false horsewhip category, beggar-ticks, Gomphrena, Tephrosia, thorn bud fruit category, bee saage Category, Cenchrus, smallpox category of ancient India, Vernonia and spiderflower category.

Especially, the conjugate of herbicide as herein defined or the conjugate of herbicide as herein defined is included Composition be used for prevent and treat selected from following weed species a kind of, several or whole noxious plants：The climing Macroptilium of ageratum, hair, Alternanthera, Borreria, Commelina, perfumed hair cream or oil Cymbidium, Mimosa, plumage awns Chrysanthemum, Brachiaria, Platostoma category, Knotgrass, golden waist arrow category, Panicum, Cyperus, cogon, Cynodon, Pennisetum, Mariscus Gaertn, Euphorbia, Talinum crassifolium Category, Cyclosorus, molasses grass category, chrysanthemum harvest spp, Herba portulacae category, Rottboellia exaltata L. F category, sorghum, Ipomoea, talon eria, Spigelia, Punarnava category, beggar-ticks, Gomphrena, Tephrosia, thorn bud fruit category, bee saage category, Cenchrus, smallpox category of ancient India, ringdove chrysanthemum Category and spiderflower category.

More particularly, the conjugate of herbicide as herein defined or the combination of herbicide as herein defined is included The composition of thing is used to prevent and treat a kind of, several or whole noxious plants selected from following weed species：The climing beans of ageratum, hair Category, Alternanthera, Borreria, Commelina, perfumed hair cream or oil Cymbidium, Mimosa, plumage awns Chrysanthemum, Brachiaria, Platostoma Category, knotgrass, golden waist arrow category, Panicum, Cyperus, cogon, Cynodon, Pennisetum, Mariscus Gaertn, Euphorbia, natives Join category, Cyclosorus, molasses grass category, chrysanthemum harvest spp, Herba portulacae category, Rottboellia exaltata L. F category, sorghum, Ipomoea, talon eria, Spigelia And punarnava category.

Specifically, it can be mentioned that the unifacial leaf and dicotyledonous weed flora fauna that can be prevented and treated by the conjugate of the present invention Some represent the example of thing.

One more specifically aspect, the present invention relates to the conjugate of herbicide as herein defined or include such as this paper The purposes of the composition of the conjugate of defined herbicide, one of which, several or whole noxious plants are selected from：Ageratum conyzoides (Ageratum conyzoides), the climing beans of hair (Calopogonium mucunoides), alternanthera (Alternanthera Sessilis), Boreiria ocymoides, upright Commeline communis (Commelina erecta), fragrant eupatorium herb (Chromolaena Odorata), Brazilian sensitive plant (Mimosa invisa), rice packet careless (Commelina benghalensis), plumage awns chrysanthemum (Tridax procumbens), Brachiaria delfexa, Platostoma africanum, digitaria ciliaris (Digitaria Adscendens), flat branch lady's-grass (Digitaria horizontalis), golden waist arrow (Synedrella nodiflora), big Broomcorn millet (Panicum maximum), the rhizome of nutgrass flatsedge (Cyperus rotundus), chufa (Cyperus esculentus), cogongrass (Imperata cylindrica), Bermuda grass (Cynodon dactylon), grazing Chinese pennisetum (Pennisetum Polystachion), napier grass (Pennisetum purpureum), purple Chinese pennisetum (Pennisetum violaceum), Mariscus alternifolius, painted euphorbia (Euphorbia heterophylla), hairy euphorbia (Euphorbia Hirta), rib axle Talinum crassifolium (Talinum triangulare), fiddlehead (Pteridium aquilinum), molasses grass (Melinis ninutiflora), bur (Sida acuta), bur (Sida rhombifolia), Drilgrass are carried on the back in vain (Commelina diffusa), Herba portulacae (Portulaca oleraceae), Rottboellia exaltata L. F (Rottboellia exaltata), Rottboellia exaltata L. F (Rottboellia cochinchinensis), johnson grass (Sorghum halepense), trilobated leaf potato (Ipomea Triloba), Egyptian grass (Dactyloctenium aegyptium), Brachiara lata, Spigelia anthemia, Boerhaavia erecta, Aspilia africana, Aneilima beniniense, tool involucre bud thatch (Hyparrhenia Involucrate), Guyana bluestem grass (Andropogon gayanus), Paspalum conjugatum (Paspalum conjugatum), circle Fruit ditch millet (Paspalum orbiculatum), nakedflower murdannia herb (Rhynchelytrum repens), eleusine indica (Eleusine Indica), pubescence green bristlegrass (Setaria barbata), great Ye green bristlegrass (Setaria megaphylla), Triumfetta Cordifolia, blue butterfly ape tail tree (Stachytarpheta cayennensis), scorpion tail beggarweed (Desmodium Scorpiurus), Herba Gomphrenae celosioidis (Gomphrena celosioides), Tephrosia bracteolata, bristle thorn bud fruit (Acanthospermum hispidum), bee saage (Hyptis suaveolens), gakhuri grass (Cenchrus Biflorus), Rose Mallow Root (Urena lobata), Mongolian ringdove chrysanthemum (Vernonia ambigua), smelly arrow dish (Cleome Viscosa), Cuscuta australis (Cuscuta australis), corchorus olitorius (Corchorus olitorius), lid dehiscent fruit (Mitracarpus villosus), Melanthera scandens, Centrosema (Centrosema pubescens), suede tassel Chrysanthemum (Emilia coccinea), bristle crotons (Croton hirtus), it is small return from the grave (Phyllanthus amarus), three Room it is yellow Numb (Corchorus trilocularis), hair passionflower (Passiflora foetida), Ipomoea involucrate, Carpetweed (Axonopus compressus), Herba Hedyotidis Corymbosae (Oldenlandia corymbosa), Acalypha Ciliata, Schwenckia americana, Solenostemon monostachyus, a sequence feather cockscomb (Celosia Trigyna), bristle wood blue (Indigofera hirsute), tendril tomonea (Heterotis rotundifolia), short tongue Flower Herba Cancriniae lasiocarpae (Acmella brachyglossa), white popinac (Leucaena leucocephala), punarnava (Boerhavia Diffusa), Spermacoce ocymoides, Oplismenus burmannii, beach louse grass (Fimbristylis Littoralis), Cyperus iris and Kyllinga erecta.

In terms of one preferred, the present invention relates to the conjugate of herbicide as herein defined or include such as herein The purposes of the composition of the conjugate of defined herbicide, one of which, several or whole noxious plants are selected from：Ageratum conyzoides, The climing beans of hair, alternanthera, Boreiria ocymoides, upright Commeline communis, fragrant eupatorium herb, Brazilian sensitive plant, rice packet grass, plumage awns chrysanthemum, Brachiaria delfexa, Platostoma africanum, digitaria ciliaris, flat branch lady's-grass, golden waist arrow, big broomcorn millet, the rhizome of nutgrass flatsedge, oil Nutgrass flatsedge, cogongrass, Bermuda grass, grazing Chinese pennisetum, napier grass, purple Chinese pennisetum, Mariscus alternifolius, painted euphorbia, fly Raise grass, rib axle Talinum crassifolium, fiddlehead, molasses grass, in vain bur, back of the body bur, Drilgrass, Herba portulacae, Rottboellia exaltata L. F (Rottboellia exaltata), Rottboellia exaltata L. F (Rottboellia cochinchinensis), johnson grass, trilobated leaf potato, dragon's paw Thatch, Brachiara lata, Spigelia anthemia, Boerhaavia erecta, Aspilia africana, It is Aneilima beniniense, tool involucre bud thatch, Guyana bluestem grass, Paspalum conjugatum, Herba Paspali orbicularis, nakedflower murdannia herb, eleusine indica, soft Hair green bristlegrass, great Ye green bristlegrass, Triumfetta cordifolia, blue butterfly ape tail tree, scorpion tail beggarweed, Herba Gomphrenae celosioidis, Tephrosia bracteolata, bristle thorn bud fruit, bee saage, gakhuri grass, Rose Mallow Root, Mongolian ringdove chrysanthemum, it is smelly arrow dish and Cuscuta australis.

Especially, the conjugate of herbicide as herein defined or the conjugate of herbicide as herein defined is included Composition be used for prevent and treat be selected from following a kind of, several or whole noxious plants：The climing beans of Ageratum conyzoides, hair, alternanthera, Boreiria ocymoides, upright Commeline communis, fragrant eupatorium herb, Brazilian sensitive plant, rice packet grass, plumage awns chrysanthemum, Brachiaria Delfexa, Platostoma africanum, digitaria ciliaris, flat branch lady's-grass, golden waist arrow, big broomcorn millet, the rhizome of nutgrass flatsedge, chufa, cogongrass, Bermuda grass, grazing Chinese pennisetum, Mariscus alternifolius, painted euphorbia, hairy euphorbia, rib axle Talinum crassifolium, fiddlehead, molasses Grass, bur, Drilgrass, Herba portulacae, Rottboellia exaltata L. F, johnson grass, trilobated leaf potato, Egyptian grass, Brachiara lata, Spigelia Anthemia, Boerhaavia erecta, scorpion tail beggarweed, Herba Gomphrenae celosioidis, Tephrosia bracteolata, bristle thorn bud Fruit, bee saage, gakhuri grass, Rose Mallow Root, Mongolian ringdove chrysanthemum, smelly arrow dish and Cuscuta australis.

More particularly, the conjugate of herbicide as herein defined or the combination of herbicide as herein defined is included The composition of thing, which is used to prevent and treat, is selected from following a kind of, several or whole noxious plants：The climing beans of Ageratum conyzoides, hair, alternanthera, Boreiria ocymoides, upright Commeline communis, fragrant eupatorium herb, Brazilian sensitive plant, rice packet grass, plumage awns chrysanthemum, Brachiaria Delfexa, Platostoma africanum, digitaria ciliaris, flat branch lady's-grass, golden waist arrow, big broomcorn millet, the rhizome of nutgrass flatsedge, chufa, cogongrass, Bermuda grass, grazing Chinese pennisetum, Mariscus alternifolius, painted euphorbia, hairy euphorbia, rib axle Talinum crassifolium, fiddlehead, molasses Grass, bur, Drilgrass, Herba portulacae, Rottboellia exaltata L. F, johnson grass, trilobated leaf potato, Egyptian grass, Brachiara lata, Spigelia Anthemia, Boerhaavia erecta and Cuscuta australis.

Especially excellent effect is observed in terms of following weeds are prevented and treated (referring to following biological Examples)：Flat branch horse Tang, Egyptian grass, Brachiara lata, big broomcorn millet, plumage awns chrysanthemum, Spigelia anthemia, Boerhaavia erecta, orangutan Grass and trilobated leaf potato.

If by Herbicidal combination used according to the invention or if by comprising used in the context of the invention The composition of Herbicidal combination is applied to soil surface before emergence, then can entirely prevent weeds seedling emergence, or miscellaneous Until it reaches cotyledon stage, then its growth stops for grass growth, and finally it is completely dead after three to surrounding.

If by Herbicidal combination used according to the invention or if by comprising used in the context of the invention The composition of Herbicidal combination is applied to the green parts of plant after emergence, then grows after the treatment equally extremely short Stop in time and ruderal plant still in time of application point growth phase, it is or completely dead after a certain time, so as to In this way extremely early time point and eliminate in a continuous manner to crop plants be harmful to weeds competition.

The purposes of Herbicidal combination used according to the invention and include the weeding used in the context of the invention The purposes of the composition of agent conjugate is characterised by quick and started and lasting herbicide effect.

Herbicidal combination particularly defined in using the context of the invention and comprising the context of the invention in institute During the composition of the Herbicidal combination of definition, rate of application can reduce, broader spectrum of broad leaved weed can be prevented and treated and grassy weed, Herbicide effect can produce more rapidly, acting duration can be prevented and treated preferably with longer, noxious plant, and only simultaneously Using once or a small number of times are applied, and administration period can extend.

Above-mentioned characteristic and advantage are advantageous to control of weeds practice, to keep crops from the shadow of undesirable competitive plant Ring, so as to protect from qualitative and quantitative angle and/or increase yield.In view of described property, these new combinations Technology status of the thing significantly more than prior art.

Although the Herbicidal combination of the present invention has significant activity of weeding, crop to unifacial leaf and broadleaf weed Plant is only by lesser degree of infringement, if any.

In addition, some compositions of the present invention have significant growth regulating characteristic to crop plants.They are with regulation Mode participates in the metabolism of plant, therefore can be used for promoting the orientation to plant component and promote to harvest, such as logical Cross triggering dehydration and stunted growth.Moreover, they are also applied for typically preventing and treating and suppressing undesirable nutrient growth without simultaneously Destroy plant.In substantial amounts of unifacial leaf and dicotyledonous crops, the suppression of nutrient growth is very important, because being led by lodging Therefore the production loss of cause can be reduced or entirely prevented.

Due to its weeding and plant growth regulating characteristic, composition of the invention can be used for preventing and treating the plant of genetic modification crop Noxious plant in thing or the crop plants for passing through mutation/selection acquisition.These crop plants are generally according to specific favourable special Property (such as the resistance to Herbicidal combinations or the resistance to plant disease or to for example specific insect of pathogen of plant disease or The microorganism such as resistance of fungi, bacterium or virus) distinguish.Other particular characteristics are related to quantity, the product for for example harvesting material Matter, storage, composition and special component.Thus, for example the transgenosis that known its content of starch increase or its starch quality change Plant, or harvesting material have the genetically modified plants of different aliphatic acid compositions.

Root crop plant can also obtain by genetic modification or by Catastrophic selection.For example, WO97/44473 A1 are related to And conversion and generation cassava plant (protoplast).The A1 of WO 92/05259 are described with modified carbohydrate content Genetically modified plants, especially cassava plant.

The invention further relates to the method for the undesirable plant (such as noxious plant) in preventing and treating root crop plant, and it is wrapped Include such as the Herbicidal combination and composition defined in the context of the invention, or will include such as institute in the context of the invention The composition of the Herbicidal combination of definition, for example, by before seedling method, by after seedling method or by before seedling and after seedling method, It is applied to plant such as noxious plant, the position of these plants, the region such as cultural area of vegetable seeds or plant growth.

Therefore, on the other hand, the present invention relates to a kind of method, and it is used for

The undesirable plant growth of-preventing and treating,

And/or

Noxious plant in-preventing and treating root crop plant,

And/or

The plant growth of-regulation root tuber crop plants,

It the described method comprises the following steps：By the conjugate of herbicide as defined above or conjugate comprising herbicide Composition be applied to root crop plant, the position of root crop plant, the seed of root crop plant, root crop plant The region of growth or root crop plant want the region of growth.

Preferably, in the method for the present invention as defined above, root crop plant is selected from sweet potato (Ipomoea Batatas), cassava (Manihot esculenta) and Chinese yam (plant species in Dioscorea (Dioscorea)), more preferably Root crop plant is cassava (Manihot esculenta).

On the other hand, the present invention relates to method of the invention as defined above, wherein to as described above a kind of, several Or whole noxious plants are prevented and treated.

On the other hand, the present invention relates to method of the invention as defined above, wherein root crop plant is repaiied through gene Decorations, preferably described root crop plant is genetically modified plants or obtained by mutation/selection.

As described above, the Herbicidal combination defined in the context of the invention acts not only as mix preparation use, If appropriate, it is used together with other agricultural chemical activity compound, additive and/or conventional formulation auxiliaries, then will It is applied as with the dilution of water in a usual manner, and is alternatively arranged as so-called tank mix, by will individually prepare Or the component individually prepared of part diluted jointly with water to use.

Herbicidal combination defined in the context of the invention and include the herbicide defined in the context of the invention The composition of conjugate can be prepared in a variety of ways according to main biology and/or chemical-physical parameters.It is the one of preparation below As possibility example：Wettable powder (WP), water-soluble concentrating agents, emulsifiable concentrating agents (EC), aqueous pharmaceutical (SL), emulsion (EW) such as oil-in-water and water-in-oil emulsion, sprayable solution agent or emulsion, suspension concentrating agents (SC), oil dispersant (OD), oil base Or aqueous dispersion agent, suspension emulsion, pulvis (DP), material of dressing seed, soil application or broadcast sowing with granule, water-dispersible granules (WG), ULV preparations, microcapsule formulations or cerate.

Preferably, Herbicidal combination used according to the invention and/or herbicide knot used according to the invention is included The composition of compound is used in the form of water-borne dispersions in the context of the present invention, preferably such as institute in WO 2007/112834A2 Disclosed water-borne dispersions, wherein extra it is highly preferred that the weight of the total amount of herbicide (i) flufenacet and (ii) Diflufenican Than it is preferably above it is preferred, more preferably or particularly preferably or defined in the most preferred embodiment in the range of.

Various preparation types are essentially known, and are for example recorded in：Winnacker-Küchler," Chemische Technologie ", volume 7, C.Hauser Verlag Munich, the 4th edition, 1986；van Valkenburg,"Pesticide Formulations",Marcel Dekker N.Y.,1973；K.Martens,"Spray Drying Handbook ", the 3rd edition 1979, G.Goodwin Ltd.London.

Required formulation auxiliary agents such as inert material, surfactant, solvent and other additives are also known, and Such as it is recorded in：Watkins, " Handbook of Insecticide Dust Diluents and Carriers ", the 2nd Version, Darland Books, Caldwell N.J.；H.v.Olphen,"Introduction to Clay Colloid Chemistry"；Second edition, J.Wiley＆Sons, N.Y.Marsden, " Solvents Guide ", second edition, Interscience,N.Y.1950；McCutcheon's,"Detergents and Emulsifiers Annual",MC Publ.Corp.,Ridgewood N.J.；Sisley and Wood, " Encyclopedia of Surface Active Agents",Chem.Publ.Co.Inc.,N.Y.1964； [Surface-active ethylene oxide adducts], Wiss.Verlagsgesellschaft,Stuttgart 1976,Winnacker-Küchler,"Chemische Technologie ", volume 7, C.Hauser Verlag Munich, the 4th edition 1986.

Based on these preparations, it can also prepare and (such as be not belonging to other agrochemical active ingredients in the context of the invention Defined component (i) and other herbicides, fungicide or the insecticide of (ii)) and with safener, fertilizer and/or growth The conjugate of conditioning agent, such as in the form of i.e. with mixing or tank mix.

Wettable powder (sprayable pulvis) is the product being dispersed in water, and it goes back in addition to the active compound Include ion or nonionic surfactant (wetting agent, dispersant), such as polyethoxylated alkylphenol, Polyethoxylated fatty Alcohol or fatty amine, paraffin sulfonate or alkylbenzenesulfonate, sodium lignosulfonate, 2,2'- dinaphthylmethane -6,6'- sodium disulfonates, Nekal or oleoyl methyl sodium taurocholate, and diluent or inert substance.

Emulsifiable concentrating agents by reactive compound by being dissolved in organic solvent such as butanol, cyclohexanone, dimethyl formyl In amine, the aromatic compounds of dimethylbenzene or higher boiling point or hydrocarbon and add one or more ions or nonionic surfactant It is prepared by (emulsifying agent).The example for the emulsifying agent that can be used has：The calcium salt of alkyl aryl sulphonic acid such as calcium dodecyl benzene sulfonate, Or nonionic emulsifier such as fatty acid polyethylene glycol ester, alkylaryl polyglycol ether, fatty alcohol polyglycol ether, epoxy third Alkane/ethylene oxide condensate, alkyl, polyether, sorbitan fatty acid esters, polyoxyethylene sorbitan fatty acid esters Or polyoxyethylene sorbitol ester.

Pulvis passes through the solid material of reactive compound and fine crushing (such as talcum powder), natural clay is (such as high Ridge soil, bentonite and pyrophyllite) or diatomite grinding and obtain.

Suspension concentrating agents (SC) can be water base or oil base.It can be for example by carrying out wet-milling by commercially available ball mill And other surfaces activating agent mentioned in the case of addition such as other preparation types for example more than comes if appropriate Prepare.

Emulsion, such as oil in water emulsion (EW) for example can be made by agitator, colloid mill and/or static mixer With aqueous organic solvent and --- if appropriate --- as mentioned by the case of other preparation types for example more than Other surfaces activating agents prepare.

Granule can be by the way that reactive compound be sprayed onto in the lightweight granular inert material of adsorptivity to prepare, or is passed through Reactive compound concentrate is applied to carrier (example by means of adhesive (such as polyvinyl alcohol, Sodium Polyacrylate or mineral oil) Such as sand, kaolin or lightweight granular inert material) surface prepare.Suitable reactive compound can also be with conventionally used for production The mode of fertiliser granulates is granulated, if it is desired, can be mixed with fertilizer.Generally, by conventional method as being spray-dried, fluidizing Bed granulations, disk granulation, extrude with super mixer mixing and under without solid inert material and prepare water-dispersible granule Agent.On the production of disc type particle, fluid bed granulate, extruder particle and spraying granule, see, for example, the method in following：" Spray-Drying Handbook " the 3rd edition 1979, G.Goodwin Ltd., London；J.E.Browning," Agglomeration ", Chemical and Engineering pages 1967,147 and hereinafter；"Perry's Chemical Engineer's Handbook ", the 5th edition, McGraw-Hill, New York 1973, the 8-57 pages.

On the further detail below of the preparation of crop protection products, see, for example, G.C.Klingmam, " Weed Control As a Science ", John Wiley and Sons, Inc., New York, 1961,81-96 pages and J.D.Freyer, S.A.Evans, " Weed Control Handbook ", the 5th edition, Blackwell Scientific Publications, Oxford, 1968, the 101-103 pages.

Generally, agrochemical formulations include 1 to 95 weight % reactive compound, and following concentration is conventional, and this depends on In the type of preparation：

Activity compound concentration in wettable powder is e.g., from about 10 to 95 weight %, and remaining is to 100 weight % by normal Advise formulation ingredients composition.In the case of emulsifiable concentrating agents, activity compound concentration can be such as 5 to 80 weight %.Powder The preparation of dosage form formula in most cases includes 5 to 20 weight % reactive compound, and sprayable solution agent includes about 0.2 To 25 weight % reactive compound.In the case of for example dispersible granule of granule, active compound content part takes Certainly in reactive compound existed with liquid or solid form, and which kind of granulation aid and filler used.Generally, in moisture In the case of dissipating property granule, content is 10 to 90 weight %.

In addition, if appropriate, above-mentioned active agent preparations can also include conventional adhesive, wetting agent, dispersant, Emulsifying agent, preservative, antifreezing agent, solvent, filler, colouring agent, carrier, defoamer, evaporation suppressor, pH adjusting agent or viscosity are adjusted Save agent.

The herbicide effect of the Herbicidal combination of the present invention can be for example, by surfactant, preferably by selected from fat The wetting agent of alcohol polyglycol ether improves.Fatty alcohol polyglycol ether is former containing 10-18 carbon preferably in fatty alcohol group Son and contain 2-20 ethylene oxide unit in polyethylene glycol ether moiety.Fatty alcohol polyglycol ether can be nonionic Or ionic, for example, form of fatty alcohol polyglycol ether sulfate, its can for example as alkali metal salt (such as sodium salt or Sylvite) or ammonium salt use, it can also be used as alkali salt such as magnesium salts, such as C₁₂/C₁₄- fatty alcohol diethylene glycol ether sodium sulfate (LRO,Clariant)；See, for example, EP-A-0476555, EP-A-0048436, EP-A-0336151 or US- A-4,400,196 and Proc.EWRS Symp. " Factors Affecting Herbicidal Activity and Selectivity",227-232(1988).Nonionic fatty alcohol polyglycol ether is for example containing 2-20, preferably 3-15 (the C of individual ethylene oxide unit₁₀-C₁₈)-fatty alcohol polyglycol ether, preferably (C₁₀-C₁₄)-fatty alcohol polyglycol ether (such as it is different Tridecanol polyglycol ether), such asSeries, such as X-030、 X-060、X-080 orX-150 (is all from Clariant GmbH).

Present invention additionally comprises herbicide (i) as defined above and (ii) and above-mentioned wetting agent conjugate, the wetting agent Selected from preferably comprising 10-18 carbon atom in fatty alcohol group and contain 2-20 epoxy second in polyethylene glycol ether moiety The fatty alcohol polyglycol ether of alkane unit, and it can be with nonionic or ionic species (such as fatty alcohol polyglycol ether sulfuric acid Salt) exist.Preferably C₁₂/C₁₄- fatty alcohol diethylene glycol ether sodium sulfate (LRO,Clariant)；And tool There is a different tridecanol polyglycol ether of 3-15 ethylene oxide unit, such as fromSeries, such as X-030、 X-060、X-080 orX-150 (is all from Clariant GmbH).It is further known that fatty alcohol polyglycol ether such as nonionic or ionic fatty alcohol polyglycol ether (example Such as fatty alcohol polyglycol ether sulfate) bleeding agent and active reinforcing agent of many other herbicides are also suitable for, especially It is additionally operable to the herbicide selected from imidazolone type (see, for example, EP-A-0502014).

Furthermore it is known that fatty alcohol polyglycol ether such as nonionic or ionic fatty alcohol polyglycol ether (such as fat Alcohol polyethylene glycol ether sulfate) bleeding agent and synergist of many other herbicides also are suitable as, especially it is additionally operable to be selected from The herbicide of imidazolone type (for example, see EP-A-0502014).

The herbicidal effect of the Herbicidal combination of the present invention can also be improved using vegetable oil.Term vegetable oil should be understood that To mean the oil from oilseed plant species, for example, soybean oil, rapeseed oil, corn oil, sunflower oil, cottonseed oil, linseed oil, Coconut oil, palm oil, safflower oil or castor oil, particularly rapeseed oil, and its ester exchange offspring, such as Arrcostab such as rapeseed oil first Ester or rapeseed oil ethyl ester.

Vegetable oil is preferably C₁₀-C₂₂The ester of-aliphatic acid, preferably C₁₂-C₂₀The ester of-aliphatic acid.C₁₀-C₂₂- fatty acid ester is Such as the C of insatiable hunger and/or saturation₁₀-C₂₂The ester of the ester of-aliphatic acid, the particularly aliphatic acid with even number of carbon atoms, such as mustard Acid, laurate, palmitic acid, and particularly C₁₈- aliphatic acid such as stearic acid, oleic acid, linoleic acid or leukotrienes.

Preferable C₁-C₂₀- alkyl-C₁₀-C₂₂- fatty acid ester is methyl esters, ethyl ester, propyl ester, butyl ester, 2- ethylhexyls and ten Dialkyl ester.Preferable ethylene glycol-and glycerine-C₁₀-C₂₂- fatty acid ester is C₁₀-C₂₂Homogeneous or mixing the second of-aliphatic acid Diol ester and glycerine ester, the C₁₀-C₂₂- aliphatic acid is particularly those aliphatic acid with even number of carbon atoms, such as mustard Acid, laurate, palmitic acid, and particularly C₁₈- aliphatic acid such as stearic acid, oleic acid, linoleic acid or leukotrienes.

Vegetable oil can exist with the weeding conjugate of the present invention, such as be deposited in the form of commercially available oil-including formulation additive , the formulation additives of rapeseed oil are based particularly on, such as(Victorian Chemical Company, Australia, hereinafter referred to as Hasten, main component：Rapeseed oil ethyl ester),B (Novance, France, below Referred to as ActirobB, main component：Rapeseed methylester), Rako-(Bayer AG, Germany, hereinafter referred to as Rako- Binol, main component：Rapeseed oil),(Stefes, Germany, hereinafter referred to as Renol, plant oil component：Rapeseed oil Methyl esters), or Stefes(Stefes, Germany, hereinafter referred to as Mero, main component：Rapeseed methylester).

In another embodiment, the present invention include the context of the invention defined in Herbicidal combination with it is above-mentioned The conjugate of vegetable oil.Therefore, in another embodiment, the present invention includes including in the present invention containing above-mentioned vegetable oil The purposes of the composition of Herbicidal combination defined hereinafter, the vegetable oil are such as rapeseed oil, and preferably commercially available contains The form of oil formulation additive, the formulation additives of rapeseed oil are based particularly on, such as(Victorian Chemical Company, Australia, hereinafter referred to as Hasten, main component：Rapeseed oil ethyl ester), B (Novance, France, hereinafter referred to as ActirobB, main component：Rapeseed methylester), Rako-(Bayer AG, Germany, hereinafter referred to as Rako-Binol, main component：Rapeseed oil),(Stefes, Germany, hereinafter referred to as Renol, plant oil component：Rapeseed methylester), or Stefes(Stefes, Germany, hereinafter referred to as Mero, it is main Want composition：Rapeseed methylester).

In order that with, optionally diluted with preparation existing for commercial form with usual manner, for example, wettable powder, can Make to be diluted with water in the case of emulsion concentrate, dispersant and water-dispersible granules.Pulvis, soil particle agent, broadcast sowing use The preparation of granula and sprayable solution dosage form formula generally further dilutes before use without other inert substances.

Reactive compound can be applied to plant, plant parts, vegetable seeds or cultural area (field soil), preferably apply For green plants and plant parts, and it is applied to field soil in addition if appropriate.

Composition comprising the Herbicidal combination used in the context of the invention has the advantages of being easy to apply, and The amount of component has advantageously been presented with correct ratio each other.Moreover, the adjuvant in preparation can best match each other.

Embodiment

Product used in 1.

Test following commercially available Herbicidal combination (being purchased from Bayer CropScience)：

Product P1 contains 400g/L (i) flufenacet and 100g/L (ii) Diflufenican, and is suspension concentrating agents (SC preparations), density 1.19kg/L.

2. biologic test

The experiment of cassava plant is carried out on the research farm of the West Africa Ivory Coast (Cote d'lvoire).

The different product that table 1 shows to be tested before emergence distinguishes the respective total weed of 42,49 and 56 days after treatment Prevent and treat grade.In each case, total weed preventing and treating is all taken into account to broad-leaved species, grass and the preventing and treating of sedge. The preventing and treating of the grass of 42,49 and 56 days is 90% in each case after processing.Control of weeds always with it is corresponding The control of weeds of undressed check plot is compared to assess.

It observed the especially excellent effect to preventing and treating following weeds：Flat branch lady's-grass, Egyptian grass, Brachiara Lata, big broomcorn millet, plumage awns chrysanthemum, Spigelia anthemia, Boerhaavia erecta, painted euphorbia and trilobated leaf potato.

Table 2 shown compared with (hoe-weeded) the cassava crop plants (as reference) of hoe weeding, product P1 (roots The herbicidal composition used according to the present invention) to the plant growth regulation of the cassava crop plants after harvesting.With respective New fresh quench cassava production weighs plant growth regulation, in each case the cassava crop as the hoe weeding with reference The percentage that the new fresh quench cassava production (being defined as 100%) of plant is compared.

Table 1：Prevented and treated with the product P1 total weeds carried out 42 days after treatment, 49 days and 56 days in the plot of before seedling processing Grading

Phytotoxic damage is not observed in the cassava plant through processing.

Table 2：Product P1 is represented with fresh Root yield the plant growth regulation of root crop plant

Claims (15)

1. a kind of conjugate of herbicide or a kind of purposes of the composition of the conjugate comprising herbicide：

- be used to prevent and treat the noxious plant in root crop plant,

And/or

- as the plant growth regulator in root crop plant,

The conjugate of wherein described herbicide includes (i) flufenacet and (ii) Diflufenican or by (i) flufenacet and (ii) Diflufenican forms.

2. the purposes of claim 1, wherein used composition comprises in addition one or more selected from formulation auxiliary agents, crop The additive and the other components of other agricultural chemical activity compounds commonly used in protection.

3. the purposes of claim 1 or 2, wherein in the conjugate of herbicide

(i) the weight ratio of flufenacet and (ii) Diflufenican is 10:1 to 1:3,

The total amount meter of (i) flufenacet and (ii) Diflufenican in the conjugate based on the herbicide.

4. the purposes of any one of claims 1 to 3, wherein in the conjugate of herbicide

(i) the weight ratio of flufenacet and (ii) Diflufenican is 8:1 to 1:2,

The total amount meter of (i) flufenacet and (ii) Diflufenican in the conjugate based on the herbicide.

5. the purposes of any one of Claims 1-4, wherein the root crop plant is selected from sweet potato (Ipomoea Batatas), cassava (Manihot esculenta) and Chinese yam (plant species in Dioscorea).

6. the purposes of any one of claim 1 to 5, wherein the root crop plant is cassava (Manihot esculenta)。

7. the purposes of any one of claim 1 to 6, one of which, several or whole noxious plants are selected from following weed species： The climing Macroptilium of ageratum, hair, Alternanthera, Borreria, Commelina, perfumed hair cream or oil Cymbidium, Mimosa, plumage awns Chrysanthemum, arm shape Careless category, Platostoma category, knotgrass, golden waist arrow category, Panicum, Cyperus, cogon, Cynodon, Pennisetum, conferted sawgrass herb Category, Euphorbia, Fameflower, Cyclosorus, molasses grass category, chrysanthemum harvest spp, Herba portulacae category, Rottboellia exaltata L. F category, sorghum, Ipomoea, dragon Pawl thatch category, Spigelia, Boerhaavia category, Aspilia category, Aneilima category, luxuriant thatch category, Andropogon, Paspalum, red hair Careless Shu, Finger-millet category, setaria, the numb category of thorn capsule, false horsewhip category, beggar-ticks, Gomphrena, Tephrosia, thorn bud fruit category, bee saage Category, Cenchrus, smallpox category of ancient India, Vernonia, spiderflower category, Crotalaria, Kyllinga, Corchorus, Ipomoea, lid dehiscent fruit Category, prostrate wedelia herb category, Centrosema category, tassel flower category, crotons category, Leafflower, Passiflora, carpetweed category, cerastium, Schwenckia category, Acalypha, Coleus, feather cockscomb category, anil, Heterotis category, Herba Cancriniae lasiocarpae category, Leucaen, Huang Carefulness category, duck tongue uncle (mother's brother) Huang category, ask rice grass category and genus fimbristylis.

8. the purposes of any one of claim 1 to 7, one of which, several or whole noxious plants are selected from following weed species： The climing Macroptilium of ageratum, hair, Alternanthera, Borreria, Commelina, perfumed hair cream or oil Cymbidium, Mimosa, plumage awns Chrysanthemum, arm shape Careless category, Platostoma category, knotgrass, golden waist arrow category, Panicum, Cyperus, cogon, Cynodon, Pennisetum, conferted sawgrass herb Category, Euphorbia, Fameflower, Cyclosorus, molasses grass category, chrysanthemum harvest spp, Herba portulacae category, Rottboellia exaltata L. F category, sorghum, Ipomoea, dragon Pawl thatch category, Spigelia, Boerhaavia category, Aspilia category, Aneilima category, luxuriant thatch category, Andropogon, Paspalum, red hair Careless Shu, Finger-millet category, setaria, the numb category of thorn capsule, false horsewhip category, beggar-ticks, Gomphrena, Tephrosia, thorn bud fruit category, bee saage Category, Cenchrus, smallpox category of ancient India, Vernonia and spiderflower category.

9. the purposes of any one of claim 1 to 8, one of which, several or whole noxious plants are selected from：Ageratum conyzoides, Mao Man Beans, alternanthera, Boreiria ocymoides, upright Commeline communis, fragrant eupatorium herb, Brazilian sensitive plant, rice packet grass, plumage awns chrysanthemum, Brachiaria delfexa, Platostoma africanum, digitaria ciliaris, flat branch lady's-grass, golden waist arrow, big broomcorn millet, the rhizome of nutgrass flatsedge, oil Nutgrass flatsedge, cogongrass, Bermuda grass, grazing Chinese pennisetum, napier grass, purple Chinese pennisetum, Mariscus alternifolius, painted euphorbia, fly Raise grass, rib axle Talinum crassifolium, fiddlehead, molasses grass, in vain bur, back of the body bur, Drilgrass, Herba portulacae, Rottboellia exaltata L. F, Rottboellia exaltata L. F, stone Thatch, trilobated leaf potato, Egyptian grass, Brachiara lata, Spigelia anthemia, Boerhaavia erecta, Aspilia Africana, Aneilima beniniense, tool involucre bud thatch, Guyana bluestem grass, Paspalum conjugatum, Herba Paspali orbicularis, nakedflower murdannia herb, Eleusine indica, pubescence green bristlegrass, great Ye green bristlegrass, Triumfetta cordifolia, blue butterfly ape tail tree, scorpion tail beggarweed, honeysuckle flower Amaranth, Tephrosia bracteolata, bristle thorn bud fruit, bee saage, gakhuri grass, Rose Mallow Root, Mongolian ringdove chrysanthemum, it is smelly arrow dish, Cuscuta australis, corchorus olitorius, lid dehiscent fruit, Melanthera scandens, Centrosema, suede tassel chrysanthemum, bristle crotons, it is small return from the grave, Three Room jutes, hair passionflower, Ipomoea involucrate, carpetweed, Herba Hedyotidis Corymbosae, Acalypha ciliata, The wooden indigo plant of Schwenckia americana, Solenostemon monostachyus, a sequence feather cockscomb, bristle, tendril tomonea, Short tongue flower Herba Cancriniae lasiocarpae, white popinac, punarnava, Spermacoce ocymoides, Oplismenus burmannii, beach louse grass, Cyperus iris and Kyllinga erecta.

10. the purposes of any one of claim 1 to 9, one of which, several or whole noxious plants are selected from：Ageratum conyzoides, Mao Man Beans, alternanthera, Boreiria ocymoides, upright Commeline communis, fragrant eupatorium herb, Brazilian sensitive plant, rice packet grass, plumage awns chrysanthemum, Brachiaria delfexa, Platostoma africanum, digitaria ciliaris, flat branch lady's-grass, golden waist arrow, big broomcorn millet, the rhizome of nutgrass flatsedge, oil Nutgrass flatsedge, cogongrass, Bermuda grass, grazing Chinese pennisetum, napier grass, purple Chinese pennisetum, Mariscus alternifolius, painted euphorbia, fly Raise grass, rib axle Talinum crassifolium, fiddlehead, molasses grass, in vain bur, back of the body bur, Drilgrass, Herba portulacae, Rottboellia exaltata L. F, Rottboellia exaltata L. F, stone Thatch, trilobated leaf potato, Egyptian grass, Brachiara lata, Spigelia anthemia, Boerhaavia erecta, Aspilia Africana, Aneilima beniniense, tool involucre bud thatch, Guyana bluestem grass, Paspalum conjugatum, Herba Paspali orbicularis, nakedflower murdannia herb, Eleusine indica, pubescence green bristlegrass, great Ye green bristlegrass, Triumfetta cordifolia, blue butterfly ape tail tree, scorpion tail beggarweed, honeysuckle flower Amaranth, Tephrosia bracteolata, bristle thorn bud fruit, bee saage, gakhuri grass, Rose Mallow Root, Mongolian ringdove chrysanthemum, smelly arrow dish And Cuscuta australis.

11. a kind of method, it is used for

The undesirable plant growth of-preventing and treating,

And/or

Noxious plant in-preventing and treating root crop plant,

And/or

The plant growth of-regulation root tuber crop plants,

It the described method comprises the following steps：By the conjugate of herbicide as defined in any one of Claims 1-4 or comprising The composition of the conjugate of herbicide is applied to root crop plant, the position of root crop plant, the kind of root crop plant Son, the region of root crop plant growth or root crop plant want the region of growth.

12. the method for claim 11, wherein the root crop plant is selected from sweet potato (Ipomoea batatas), cassava (Manihot esculenta) and Chinese yam (plant species in Dioscorea).

13. the method for claim 11 or 12, wherein the root crop plant is cassava (Manihot esculenta).

14. the method for any one of claim 11 to 13, wherein to as defined in any one of claim 7 to 10 one Kind, several or whole noxious plants are prevented and treated.

15. the method for any one of claim 11 to 14, wherein the root crop plant is through genetic modification, preferably institute Root crop plant is stated to obtain for genetically modified plants or by mutation/selection.