CN109362745A - Herbicidal combinations containing metamifop - Google Patents

Abstract

The present invention relates to the Herbicidal combinations containing metamifop, containing active constituent a) metamifop, b) cyhalofop-butyl, c) HPPD inhibitor, wherein HPPD inhibitor is selected from one of benzobicylon, triazole sulphur humulone, dichloroquinoline humulone, furans sulphur humulone；Wherein the metamifop, cyhalofop-butyl, triazole sulphur humulone weight ratio be 1:0.5~5:0.2~3, metamifop, cyhalofop-butyl, dichloroquinoline humulone weight ratio be 1:0.5~5:0.5~10；Composition can be applied to prevent and kill off rice field annual grassy weeds, especially barnyard grass, semen euphorbiae, herba digitariae.

Description

Herbicidal combinations containing metamifop

Technical field

The invention belongs to composition pesticide technical fields, and in particular to a kind of with metamifop, cyhalofop-butyl, HPPD suppression Preparation be effective component Synergistic herbicide compositions, wherein HPPD inhibitor be selected from triazole sulphur humulone, dichloroquinoline humulone one Kind.

Background technique

Metamifop (Metamifop) is aryloxyphenoxypropanoates class herbicide, and can be fabulous prevent and kill off is 1 year most of Raw gramineae weed, unlike most of such herbicides, metamifop can effectively prevent and kill off paddy field to rice safety Main weeds are mainly used for transplanting and direct sowing rice field weeding such as barnyard grass, semen euphorbiae, herba digitariae and herba eleusines indicae.Medicine low toxicity, to ring Border safety, has extensive miscibilty, and be expected to be used for other crops and Kill weeds, is a very promising weeding Agent.

Cyhalofop-butyl (cyhalofop-butyl) belongs to aryloxyphenoxypropionic class herbicide, can be by the blade of plant It is absorbed with leaf sheath, bast conduction, accumulation is resisted acetyl-CoA carboxylase (ACCase), made in the meristem zone of plant Fatty acid synthesis stops, and the growth division of cell cannot proceed normally, and the structure containing rouge such as membranous system is destroyed, and it is dead to finally result in plant Paddy field selective herbicide is died, cauline leaf process can only be made, bud pre-treatment is invalid, mainly prevents and kill off barnyard grass, the grass family such as semen euphorbiae Weeds.

HPPD (4- medical midbodies of para (ortho)-hydroxybenzoic acetone acid dual oxide enzyme) inhibitor class herbicide is double for mainly having for agent for removing grass in paddy field The HPPD such as ring sulphur humulone, dichloroquinoline humulone, triazole sulphur humulone, furans sulphur humulone, mesotrione are currently the most important ones weedings One of agent action target.HPPD is the key that in plastoquinone necessary to plant normal growth and tocopherol Biosynthetic pathway Enzyme can be catalyzed the biochemical process in plant from tyrosine to plastoquinone.

Furans sulphur humulone can inhibit pigment synthesis indispensable in plant growth, be absorbed simultaneously by root, stem, young shoot, leaf Conduction rapidly；It is efficient to the perennial broadleaf weeds such as the annual grassy weeds such as barnyard grass, Monochoria vaginalis, Procumbent Falsepimpernel and Herba Cyperi Glomerati, short arrowhead.

Cauline leaf is spraying after triazole sulphur humulone positions rice direct seeding field and transplant field seedling, mainly solve current anti-ALS inhibitor, The barnyard grass of ACC inhibitor, hormone inhibitors class, and the semen euphorbiae of resistance is generated to ACC inhibitor.

Dichloroquinoline humulone rice and the hard bran barnyard grass of autumn maturing weeds, west come barnyard grass, without awns barnyard grass, barnyard grass, bald barnyard, herba digitariae, Eclipta prostrata, Selectivity index between Procumbent Falsepimpernel, difformed galingale herb, cyperus iria is higher, can be used for preventing and kill off rice field annual grassy weeds.

Grass phase is complicated for farmland weed, many kinds of, and application chemical agent is to prevent and kill off the most effective chemical means of agricultural weed One of；It is a good solution that agricultural weed is prevented and kill off with the novel pesticide of not cross resistance；But one is developed at present A novel pesticide needs to screen a compounds up to ten thousand, and hundred million dollars of cost 1.2-1.5, the development cycle is 5-10, is difficult to catch up with upper miscellaneous The speed that grass develops drug resistance；Other methods such as crop structure adjustment, different pesticide rotations etc., in the actual operation process, It is difficult to play apparent effect.

Reasonable chemical herbicide compounding or mixture, which have, expands degrass spectrum, improves control efficiency, extends application period, subtracts Few dosage reduces phytotoxicity risk, reduces residual, delays the advantages that generation and development of weeds drug resistance and drug resistance, so It develops suitable mixture of herbicides or mixture is maximally efficient and economic one of the method to solve the above problems.

Exploitation new product herbicide is expensive, the period is long, and in contrast, exploitation is efficient, less toxic, low-residual with research Compounding have with mixture invest small, lead time it is short and by attention both domestic and external, it is numerous and confused to increase development dynamics.

Metamifop cyhalofop-butyl dichloroquinoline humulone, metamifop cyhalofop-butyl triazole sulphur humulone Combination has not been reported.

Summary of the invention

It is an object of the present invention to provide a kind of metamifop cyhalofop-butyl dichloroquinoline humulone or metamifops Cyhalofop-butyl triazole sulphur humulone Herbicidal combinations.

The technical scheme is that a kind of Herbicidal combinations, contain active components A: metamifop, B: cyanogen fluorine grass Ester, C:HPPD inhibitor (is selected from one of triazole sulphur humulone, dichloroquinoline humulone), wherein the metamifop, cyanogen fluorine Careless ester, triazole sulphur humulone weight ratio be 1:0.5~5:0.2~3, metamifop, cyhalofop-butyl, dichloroquinoline humulone Weight ratio is 1:0.5~5:0.4~6.

As a further improvement of the present invention, in composition metamifop, cyhalofop-butyl, dichloroquinoline humulone weight Ratio is 1:0.5~3:0.4~6, remaining is insecticides adjuvant.

As a further improvement of the present invention, metamifop in composition, cyhalofop-butyl, between triazole sulphur humulone three Weight ratio be 1:0.5~5:0.2~2, remaining is insecticides adjuvant.

As a further improvement of the present invention, metamifop in composition, cyhalofop-butyl, between triazole sulphur humulone three Weight ratio be 1:5~15:0.5~3, remaining is insecticides adjuvant.

As a further improvement of the present invention, metamifop in composition, cyhalofop-butyl, between triazole sulphur humulone person Weight ratio is 1:1.5:0.4,1:1:0.4,1:2:0.4, remaining is insecticides adjuvant.

As a further improvement of the present invention, metamifop in composition, cyhalofop-butyl, dichloroquinoline humulone three it Between weight ratio be 1:1.5:2,1:1:2,1:1:1,1:1.5:1, remaining is insecticides adjuvant.

The Herbicidal combinations by certain technological means can excipient be suspending agent, dispersible oil-suspending agent, moisture Shot agent etc..

The suspending agent dosage form weight percent composition are as follows: metamifop 0.1~20%, cyhalofop-butyl 0.1~ 30%, HPPD inhibitor (being selected from one of triazole sulphur humulone, dichloroquinoline humulone) 0.1~30%, dispersing agent 0.1~ 20%, wetting agent 0.1-5%, thickener 0.1~2%, deionized water carrier complement to 100%.Specific production stage are as follows: will have Ingredient and the mixing of other auxiliary agents are imitated, after high speed shear dispersion, being sanded in sand mill, forms high dispersive, steady in water-medium Fixed suspension system, is made the suspending agent of corresponding weight percentage, and suspending agent Active principals content is not higher than 50%.

The dispersible oil-suspending agent dosage form weight percent composition are as follows: metamifop 0.1~20%, cyhalofop-butyl 0.1~35%, HPPD inhibitor 0.1~30% (being selected from one of triazole sulphur humulone, dichloroquinoline humulone), dispersing agent 0.1 ~25%, wetting agent 0.1-5%, emulsifier 0.1~15%, thickener 0.1~2%, liquid-carrier complements to 100%.Specifically Production stage are as follows: effective component and other auxiliary agents are mixed, after being sanded in high speed shear dispersion, sand mill, are situated between in non-water system High dispersive, stable suspension system are formed in matter, the dispersible oil-suspending agent of corresponding weight percentage is made, and it is outstanding that oil can be dispersed Floating agent Active principals content is not higher than 50%.

The dosage form of water dispersible granule weight percent composition are as follows: metamifop 0.1~30%, cyhalofop-butyl 0.1 ~40%, HPPD inhibitor (being selected from one of triazole sulphur humulone, dichloroquinoline humulone) 0.1~30%, dispersing agent 0.1~ 20%, wetting agent 0.1~10%, disintegrating agent 0.1~10%, solid carrier complements to 100%.Specific production stage are as follows: will have It imitates ingredient and other auxiliary agents is uniformly mixed, crushed with micro jet, through mediating, fluidized-bed granulation dryer is then added In be granulated, dry, sieve, the water dispersible granules of corresponding weight percentage are made, water dispersible granules Active principals contain Amount is not higher than 80%.

The defoaming agent can be one of silicone compound, epoxidized soybean oil, methanol, silicone oil, fatty alcohol etc. Or it is several.

The antifreezing agent can be in glycerol, propylene glycol, diethylene glycol (DEG), urea, glycerol-ether diglycol, inorganic salts etc. It is one or more of.

The wetting agent can be lauryl sodium sulfate, neopelex, sodium butylnaphthalenesulfonate, alkyl sulphur One or more of sour sodium, tea seed cake powder, spaonin powder, spaonin powder, condensed phosphate, sulfate, phosphate etc..

The dispersing agent can be APES formaldehyde condensation product, naphthalenesulfonate formaldehyde condensation compound, to first Oxygroup fatty acyl anilinesulfonic acid, lignosulfonates, polycarboxylate, alkyl phenol polyoxyethylene ether sulfate, alkyl benzene sulphonate Calcium salt, aliphatic ester sulfate, alkyl phenol polyoxyethylene ether, fatty alcohol polyoxyethylene ether, polyoxyethylene polyoxypropylene base ether are embedding One or more of section copolymer etc..

The disintegrating agent can be sodium carboxymethyl starch, low-substituted hydroxypropyl cellulose, croscarmellose sodium, Crospovidone, chitosan, sodium alginate sodium bicarbonate, magnesium chloride, aluminium chloride, sodium chloride, urea, ammonium sulfate, bentonite etc. One or more of.

The thickener can be polyvinyl acetate, xanthan gum, gelatin, gum arabic, aluminium-magnesium silicate, phenolic aldehyde tree One or more of rouge, hydroxymethyl cellulose, sodium alginate etc..

The solid carrier can be precipitated calcium carbonate, clay, kaolin, diatomite, bentonite, white carbon black, clay, One or more of attapulgite, talcum powder, quartz sand etc..

The liquid-carrier can be exquisite soybean oil, corn oil, rapeseed oil, turpentine oil, methyl oleate, coconut oil, One or more of palm oil, peanut oil, sunflower oil etc..

The deionized water is industrialization deionized water.

The binder can be sucrose, polyvinyl alcohol, polyethylene glycol, sodium carboxymethylcellulose, carboxymethyl cellulose One of calcium, carboxy-propyl cellulose, dextrin, amylodextrin, polyvinylpyrrolidone, sticky kaolin, paraffin, rosin etc. or It is several.

The solid acid can be citric acid, succinic acid, maleic acid, fumaric acid, tartaric acid, oxalic acid, malonic acid, apple Acid, succinic acid, hexanedioic acid, boric acid, phosphoric acid, benzoic acid, sulfamic acid, salicylic acid, glutamic acid, phenylacetic acid, niacin or sorbic acid One or more of Deng.

The carbonate can be sodium carbonate, potassium carbonate, ammonium carbonate, calcium carbonate, lithium carbonate, sodium bicarbonate, bicarbonate One or more of potassium, lithium bicarbonate, three ammonium of sodium sesquicarbonate, bicarbonate tripotassium or bicarbonate etc..

The flowing regulator can be calcium stearate, magnesium stearate, barium stearate, titanium dioxide, talcum powder, 12 It is one or more of in alkylsurfuric acid magnesium, polysorbate, wheat starch or sodium benzoate etc..

The frequency of administration and amount of application of the present composition change with crops, weeds, weather condition and have small variations, It can achieve the purpose that effectively prevent by using dosage appropriate.

(i.e. metamifop cyhalofop-butyl HPPD inhibitor (is selected from triazole sulphur humulone, dichloro to triple combination of the present invention One of quinoline humulone)) deficiency when can solve single herbicide or dual use, expand degrass spectrum, and composition has Unexpected synergistic response, such as to herba digitariae (Digitaria sanguinalis), semen euphorbiae (Leptochloa Chinensis), false loosestrife (Ludwigia prostrata), barnyard grass (Echinochloa crusgalli), Paspalum distichum (Paspalum paspaloides), the nit grass (Leptochloa panicea), bald barnyard (Echinochloa colonum (L.) Link), purple fringe barnyard grass (Echinochloa esculenta (A.Braun) H.Scholz), hole ditch millet (Echinochloa Cruspavonis (H.B.K.) Schult.) etc. there is apparent synergistic response, can be preventing for paddy field annual grassy weeds Except offer excellent fix.

Specific embodiment

In order to keep the objectives, technical solutions, and advantages of the present invention more concise, present invention following specific embodiments It is illustrated, but the present invention is by no means limited to these examples.The following is only the preferred embodiment of the present invention, is used only for retouching The present invention is stated, should not be understood as limiting the scope of the present invention.It should be pointed out that it is all the spirit and principles in the present invention it Interior done any modifications, equivalent replacements, and improvements etc., should all be included in the protection scope of the present invention.

Embodiment one: raw to survey embodiment

Colby equation is used to determine desired herbicide effect (Colby, the S.R.Weeds1967,15,20- of mixture 22.Calculation of the synergistic and antagonistic response of herbicide Combinations):

Following equatioies are used to calculate the expectation activity of the mixture containing two kinds of active components A and B:

In formula:

The effect of active components A of same concentrations used in the mixture that A=is observed；

The effect of active constituent B of same concentrations used in the mixture that B=is observed.

When the concentration activity actual observation value used in the mixture is greater than desired value, mixture shows as having target weeds Unexpected synergistic effect.

Metamifop, cyhalofop-butyl, HPPD inhibitor and its compounding to semen euphorbiae (Leptochloa chinensis), The indoor toxicity test of barnyard grass (Echinochloa crusgalli).

The prevention and treatment percentage of Obs- observation.

Prevention and treatment percentage desired by Exp-Colby equation.

G a.i./ha- gram active constituent/hectare.

Weeds are artificial culture, and careless age is 5 leaf, 1 heart, and application method is spraying for cauline leaf, 675 liters of per hectare water consumption；Specifically Method is referring to NY/T1155.4-2006 (active determination test cauline leaf spray-on process).

, grass different to the weed control efficacy in grass ages different under same culture conditions under the conditions of benzobicylon same dose Age is bigger, and preventive effect is poorer, and such as benzobicylon dosage 100g a.i./ha, cauline leaf is sprayed 675 liters of per hectare water consumption, medicine 15 days afterwards, be 92% to 1 leaf, 1 heart barnyard grass fresh weight preventive effect, is 78.4% to 2 leaf, 1 heart barnyard grass fresh weight preventive effect, anti-to 3 leaf, 1 heart barnyard grass Effect is 70.2%, is 51.32% to 4 leaf, 1 heart barnyard grass fresh weight preventive effect, is 42.68% to 5 leaf, 1 heart barnyard grass fresh weight preventive effect.Triazole sulphur There is also similar situations for humulone, dichloroquinoline humulone, cyhalofop-butyl, metamifop etc..

The collaboration to weeds in 15 days prevents and treats table 1 A1 and B1 after application, and A1 is metamifop 20g a.i./ha+ cyanogen fluorine Careless ester 20g a.i./ha, B1 are triazole sulphur humulone.

The collaboration to weeds in 15 days prevents and treats table 2 A2 and B1 after application, and A2 is metamifop 20g a.i./ha+ cyanogen fluorine Careless ester 10g a.i./ha, B1 are triazole sulphur humulone.

The collaboration to weeds in 15 days prevents and treats table 3 A3 and B1 after application, and A3 is metamifop 20g a.i./ha+ cyanogen fluorine Careless ester 40g a.i./ha, B1 are triazole sulphur humulone.

The collaboration to weeds in 15 days prevents and treats table 4 A4 and B1 after application, and A4 is metamifop 20g a.i./ha+ cyanogen fluorine Careless ester 60g a.i./ha, B1 are triazole sulphur humulone.

The collaboration to weeds in 15 days prevents and treats table 5 A5 and B1 after application, and A5 is metamifop 20g a.i./ha+ cyanogen fluorine Careless ester 100g a.i./ha, B1 are triazole sulphur humulone.

The collaboration to weeds in 15 days prevents and treats table 6 A1 and B2 after application, and A1 is metamifop 20g a.i./ha+ cyanogen fluorine Careless ester 20g a.i./ha, B2 are dichloroquinoline humulone.

The collaboration to weeds in 15 days prevents and treats table 7 A2 and B2 after application, and A2 is metamifop 20g a.i./ha+ cyanogen fluorine Careless ester 10g a.i./ha, B2 are dichloroquinoline humulone.

The collaboration to weeds in 15 days prevents and treats table 8 A3 and B2 after application, and A3 is metamifop 20g a.i./ha+ cyanogen fluorine Careless ester 40g a.i./ha, B2 are dichloroquinoline humulone.

The collaboration to weeds in 15 days prevents and treats table 9 A4 and B2 after application, and A4 is metamifop 20g a.i./ha+ cyanogen fluorine Careless ester 60g a.i./ha, B2 are dichloroquinoline humulone.

The collaboration to weeds in 15 days prevents and treats table 10 A5 and B2 after application, and A5 is metamifop 20g a.i./ha+ cyanogen Fluorine grass ester 100g a.i./ha, B2 are dichloroquinoline humulone.

The collaboration to weeds in 15 days prevents and treats table 11 A3 and B3 after application, and A3 is metamifop 20g a.i./ha+ cyanogen Fluorine grass ester 40g a.i./ha, B3 are mesotrione.

The collaboration to weeds in 15 days prevents and treats table 12 A3 and B2 after application, and A3 is metamifop 20g a.i./ha+ cyanogen Fluorine grass ester 40g a.i./ha, B2 are dichloroquinoline humulone.

The collaboration to barnyard grass in 15 days prevents and treats after application for 13 metamifop of table, cyhalofop-butyl, dichloroquinoline humulone.

Embodiment two: example of formulations

Oil-suspending agent can be dispersed in (1) 36% metamifop cyhalofop-butyl dichloroquinoline humulone

Metamifop 8%, cyhalofop-butyl 12%, dichloroquinoline humulone 16%, castor oil polyoxyethylene ether 7%, oleic acid Methyl esters 20%, fatty alcohol polyoxyethylene ether 5%, bentonite 2%, soybean oil to 100%；By above-mentioned material, (organobentonite is removed It is added in reaction kettle mixing machine, stirs 2 hours together outside), open bottom pan feeding valve, material is injected in multistage sand mill and is ground Mill, by discharging after 1-5um, material is put into togerther with the organobentonite dissolved in advance the fineness of materials 98% after grinding again It can be made into the good 36% metamifop cyhalofop-butyl dichloroquinoline grass of flowing to property in high-shear emulsifying kettle, after emulsification Oil-suspending agent can be dispersed in ketone.

Oil-suspending agent can be dispersed in (2) 36% metamifop cyhalofop-butyl dichloroquinoline humulones

Metamifop 12%, cyhalofop-butyl 12%, dichloroquinoline humulone 12%, castor oil polyoxyethylene ether 10%, oil Sour methyl esters 25%, fatty alcohol polyoxyethylene ether 8%, bentonite 2%, soybean oil to 100%；By above-mentioned material (organobentonite Except) be added in reaction kettle mixing machine together, it stirs 2 hours, opens bottom pan feeding valve, material is injected in multistage sand mill Grinding, the fineness of materials 98% after grinding by discharging after 1-5um, put together with the organobentonite dissolved in advance again by material Enter in high-shear emulsifying kettle, can be made into the good 36% metamifop cyhalofop-butyl dichloroquinoline of flowing to property after emulsification Oil-suspending agent can be dispersed in humulone.

Embodiment three: Application Example

14 metamifop of table, cyhalofop-butyl, dichloroquinoline humulone composition are to preventing and kill off rice field annual gramineous weed Field control effectiveness test, field advantage gramineae weed are herba digitariae, account for 96% or more of gramineae weed total amount, control method is stem Foliar spray mist, weeds 2-3 leaf when application use 45 kilograms of water per acre.

Drug effect calculation formula is as follows:

Claims (9)

1. the Herbicidal combinations containing metamifop, it is characterised in that: containing active constituent a) metamifop, b) cyanogen fluorine is careless Ester, c) HPPD inhibitor, HPPD inhibitor are selected from one of triazole sulphur humulone, dichloroquinoline humulone；Metamifop, cyanogen fluorine Careless ester, triazole sulphur humulone weight ratio be 1:0.5~5:0.2~3 or metamifop, cyhalofop-butyl, dichloroquinoline humulone Weight ratio be 1:0.5~5:0.4~6.

2. Herbicidal combinations according to claim 1, it is characterised in that: metamifop in the composition, cyhalofop-butyl, The weight ratio of dichloroquinoline humulone is 1:0.5~3:0.4~6, remaining is insecticides adjuvant.

3. Herbicidal combinations according to claim 1, it is characterised in that: metamifop in the composition, cyhalofop-butyl, Weight ratio between triazole sulphur humulone three is 1:0.5~5:0.2~2, remaining is insecticides adjuvant.

4. Herbicidal combinations according to claim 1, it is characterised in that: metamifop in the composition, cyhalofop-butyl, Weight ratio between dichloroquinoline humulone three is 1:1.5:2,1:1:2,1:1:1 or 1:1.5:1.

5. Herbicidal combinations according to claim 1, it is characterised in that: metamifop in the composition, cyhalofop-butyl, Weight ratio between triazole sulphur humulone three is 1:1.5:0.4,1:1:0.4 or 1:2:0.4.

6. purposes according to claim 1, it is characterised in that: metamifop, cyhalofop-butyl, dichloroquinoline in composition Weight ratio between humulone three is 1:1.5:2,1:1:2,1:1:1,1:1.5:1.

7. purposes according to claim 1, it is characterised in that: metamifop, cyhalofop-butyl, triazole sulphur grass in composition Weight ratio between ketone three is 1:1.5:0.4,1:1:0.4,1:2:0.4.

8. the purposes that Herbicidal combinations described in claim 1 are used for killing weeds in rice field.

9. the purposes that Herbicidal combinations according to claim 8 are used for killing weeds in rice field, it is characterised in that: the rice field Weeds are barnyard grass, semen euphorbiae, herba digitariae.