CN103190423A - Bactericidal composition containing triazole and thiram - Google Patents
Bactericidal composition containing triazole and thiram Download PDFInfo
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- CN103190423A CN103190423A CN2013101143510A CN201310114351A CN103190423A CN 103190423 A CN103190423 A CN 103190423A CN 2013101143510 A CN2013101143510 A CN 2013101143510A CN 201310114351 A CN201310114351 A CN 201310114351A CN 103190423 A CN103190423 A CN 103190423A
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Abstract
The invention relates to a bactericidal composition of suspending agent form, wettable powder and water dispersible granules. The bactericidal composition mainly comprises the following raw materials in percentage by mass: 1%-3% of triazole fungicide, 10%-60% of thiram and 3%-15% of additive, wherein the triazole fungicide is one substance or a combination of multiple substances selected from epoxiconazole, tebuconazole, cyproconazole and difenoconazole, and the additive comprises a poly-carboxylate dispersing agent and a fatty alcohol ether wetting agent which are added according to a mass ratio of 1: (0.15-3). When the bactericidal composition is used, the good compound stability is always kept between the two active components. Compared with a single dosage for preventing and treating crop diseases, the bactericidal composition has the advantages that the range of preventing and treating diseases is widened, the generation of medicine resistance is delayed, the pesticide effect is obviously improved, the dosage of pesticide used in land per mu and the frequency of pesticide application are reduced, the safety production of agriculture is well ensured, and ecological environments are protected.
Description
Technical field
The invention belongs to the agriculture chemicals fungicide field, be specifically related to a kind of bactericidal composition that contains triazole type and tmtd.
Background technology
At present, according to the effect of medicament to disease, bactericide generally can be divided three classes:
1, protective fungicide: this series bactericidal agent can be protected not by the dispenser position of infection process; exempt from infecting of germ; need before not touching disease or disease generation, crop just can receive effect by the spray medicine, as bordeaux mixture, lime sulfur, mancozeb, tmtd etc.
2, the property rooted out bactericide: this class medicament can directly kill the invasion before germ and the treatment infected the dispenser position, seldom be directly used on the crop, as the infected seed of sterilizing with formalin, triadimefon must be as eradicant action to stripe rust of wheat, powdery mildew using method.
3, curative fungicide agent: this series bactericidal agent is also named interior absorption agent, after it is conducted by plant absorbing, can stop the germ development at each position of plant, as carbendazim, topsin, kasugarnycin etc.
Known, triazole bactericidal agent is a kind of broad spectrum activity systemic fungicide, is sterol demethylation inhibitor, destroys and stop the biosynthesis of the cell membrane important composition composition ergosterol of germ, causes cell membrane not form, and makes germ death.Because absorption in having well, therefore can be promptly by plant absorbing, and in conducted inside, have good protection and therapeutic activity.Can prevent and treat the cereal crop powdery mildew, Helminthosporium, Puccinia, shell pin Pseudomonas pathogen also can be cooked seed treatment, prevents and treats soil-borne disease and seed-borne disease, and the cereal powdery mildew is had special efficacy.
Tmtd is a kind of wide spectrum, protective fungicide; main effect is the prevention fungal infection; inhale conduction in not having; but at plant surface good adhesivity is arranged; be not subject to rain drop erosion; arranged, but because it belongs to conventional sterilization agent kind the long drug effect phase, and inhale deficiency such as conductivity in not having and hindered its further application.
Chinese invention patent application open (bulletin) number: it is the bactericidal composition of active ingredient with pyraclostrobin and tmtd that CN101248795B the present invention relates to a kind of, belongs to the bactericidal composition technical field of pesticide.Bactericidal composition contains active component pyraclostrobin and tmtd, and its ratio of quality and the number of copies is 1: 40～40: 1, and the quality percentage composition is 1～90%; Can be made into wetting powder, water dispersible granules, suspending agent, aqueous emulsion, microemulsion or other dosage formulation.At least contain a kind of carrier and a kind of auxiliary agent, wherein at least a is surfactant, can be emulsifier, dispersant, wetting agent or bleeding agent.Be water, organic solvent or cosolvent, filler according to the addible carrier of different dosage form.Add other functional aids such as stabilizing agent, thickener, defoamer, adhesive in case of necessity.This combined bactericide can be used for preventing and treating the multiple diseases that oomycetes, sac fungi, basidiomycetes, imperfect fungus etc. cause, has synergy, doublely controls, reduces cost, delays important function such as pesticide resistance.Though above-mentioned composite reagent shows synergy than single medicament, yet still remain to be improved at its drug effect of wheat scab, cost also remains further to be reduced.
Summary of the invention
Goal of the invention: the objective of the invention is provides a kind of stable bactericidal composition in order to solve above the deficiencies in the prior art, and its drug effect is good and cost is low.
Technical scheme: the bactericidal composition that contains triazole type and tmtd of the present invention, its objective is such realization, a kind of bactericidal composition that contains triazole type and tmtd, comprise following component by mass percent: triazole bactericidal agent 1%～30%, tmtd 10%～60%, auxiliary agent 3%～15%, wherein, described triazole bactericidal agent is from fluorine ring azoles, Tebuconazole, the combination of one or more in Cyproconazole and the Difenoconazole, described auxiliary agent comprises polycarboxylate salt dispersant and fatty alcohol ether wetting agent, and the mass ratio of described polycarboxylate salt dispersant and fatty alcohol ether wetting agent is 1: 0.15～3.
Preferably, in the above-mentioned composition, the mass ratio of triazole bactericidal agent and tmtd is 1: 1～6, and in the described auxiliary agent, fatty alcohol ether wetting agent and polycarboxylate salt dispersant's mass ratio is 1: 1～3.
A technical scheme provided by the invention is, the bactericidal composition of a kind of triazole type and tmtd, comprise following component by mass percent: triazole bactericidal agent 1%～30%, tmtd 10%～60%, auxiliary agent 3%～15%, and deionized water 20%～70%, wherein, described triazole bactericidal agent is one or more the combination in fluorine ring azoles, Tebuconazole, Cyproconazole and Difenoconazole, described auxiliary agent comprises polycarboxylate salt dispersant and fatty alcohol ether wetting agent, and the mass ratio of described polycarboxylate salt dispersant and fatty alcohol ether wetting agent is 1: 0.15～3.
Preferably, in the above-mentioned composition, the mass ratio of triazole bactericidal agent and tmtd is 1: 1～6, and in the described auxiliary agent, fatty alcohol ether wetting agent and polycarboxylate salt dispersant's mass ratio is 1: 1～3.
According to as above-mentioned triazole type and the bactericidal composition of tmtd, its preparation method comprises following preparation process: at first each raw material by formula ratio mixes, pre-dispersed under high speed shear, carry out sand milling through sand mill then, make the particle diameter of 90% material below 3 μ m, stop sand milling, remove by filter the bactericidal composition that the sand milling medium namely gets suspending agent type.
According to the present invention, high speed shear refers to that shear rate greater than 8000r/min, is generally 8000～10000r/min.
Another technical scheme provided by the invention is that the bactericidal composition of a kind of triazole type and tmtd comprises following component by mass percent: triazole bactericidal agent 1%～30%, tmtd 10%～60%, auxiliary agent 3%～15%, and ammonium sulfate 10%～40%; Sodium carboxymethylcellulose 0～2% and filler 0～70%.
Preferably, in the above-mentioned composition, the mass ratio of triazole bactericidal agent and tmtd is 1: 1～6, and in the described auxiliary agent, fatty alcohol ether wetting agent and polycarboxylate salt dispersant's mass ratio is 1: 1～3.
A kind of preferred version as this technical scheme, described composition comprises following component by mass percent: Tebuconazole 1%～15%, tmtd 15%～30%, polycarboxylate 2%～6%, fatty alcohol ether wetting agent 1%～3%, ammonium sulfate 30%～40%, sodium carboxymethylcellulose 1%～2%, and filler 5%～15%.
Preferably, in the above-mentioned composition, described filler is one or more the combination that is selected from kaolin, bentonite, diatomite, white carbon and the precipitated calcium carbonate.
According to as above-mentioned triazole type and the bactericidal composition of tmtd, its preparation method comprises following preparation process: at first with each raw material premixed of formula ratio, mixed material is pulverized through coarse crushing, mixing again, airslide disintegrating mill successively, entering into cone-type mixer then is mixed to the material fineness and reaches 99% by 325 mesh standard sieves, afterwards, in material, add the water kneading, extruder grain, dry, namely get the bactericidal composition of water-dispersible grain formulation.
Another technical scheme provided by the invention is that the bactericidal composition of a kind of triazole type and tmtd comprises following component by mass percent: triazole bactericidal agent 1%～30%, tmtd 10%～60%, auxiliary agent 3%～15%, and filler 0～70%.
Preferably, in the above-mentioned composition, the mass ratio of triazole bactericidal agent and tmtd is 1: 1～6, and in the described auxiliary agent, fatty alcohol ether wetting agent and polycarboxylate salt dispersant's mass ratio is 1: 1～3.
As a kind of preferred version of this technical scheme, described composition comprises following component by mass percent: Tebuconazole 1%～15%, tmtd 15%～40%, polycarboxylate 2%～6%, fatty alcohol ether wetting agent 1%～3% and filler 35%～70%.
Preferably, in the above-mentioned composition, described filler is one or more the combination that is selected from kaolin, bentonite, diatomite, white carbon and the precipitated calcium carbonate.
According to as above-mentioned triazole type and the bactericidal composition of tmtd, its preparation method comprises following preparation process: at first with each raw material premixed of formula ratio, mixed material successively through coarse crushing, mix again, airslide disintegrating mill pulverizes, enter into cone-type mixer then and be mixed to the material fineness and reach 99% and namely get the bactericidal composition of wettable powder formulation by 325 mesh standard sieves.
Beneficial effect: owing to adopt above technical scheme, the present invention compared with prior art has following advantage, the active component of bactericidal composition of the present invention is made up of specific triazole bactericidal agent and tmtd, wherein, triazole bactericidal agent has extremely strong interior suction bactericidal action, the germ that produces resistance is had excellent control efficiency, but single agent usage amount height, fungicidal spectrum are narrow; The good tackness of tmtd on plant surface, but do not inhale conductivity in the tool.The applicant finds through a large amount of tests, when by means of specific auxiliary agent during with the two composite use, compound drug has embodied the synergistic effect (co-toxicity coefficient CTC surpass 170) of highly significant, and when particularly Tebuconazole and tmtd is composite, co-toxicity coefficient CTC reaches about 250.In addition, the present invention and existing pyraclostrobin and the composite combination medicament ratio that forms of tmtd, cost is lower, preparation is more simple, and drug effect is better.
Embodiment
Invention thinking of the present invention is by auxiliary agent triazole bactericidal agent is mutually composite with tmtd, at utmost brings into play the synergistic effect of the two.In order to deepen the understanding of the present invention, the invention will be further described below in conjunction with embodiment, and these embodiment only are used for explaining the present invention, do not constitute the restriction to protection domain of the present invention.
The chemical name of the fluorine ring azoles that the present invention relates to for (2RS, 3SR)-1-[3-(2-chloro benzene)-2,3-epoxy-2-(4-fluorophenyl) propyl group]-1H-1,2,4-triazole.Former medicine is white crystal, be used for the seed treatment of important economic crops or the efficient germicide of foliage spray, can good preventive and therapeutic effect be arranged to ten multiple diseases such as a series of cereal crop diseases such as damping off, powdery mildew, eyeprint diseases, diseases such as the anthracnose on leaf spot, powdery mildew, rust and the grape on the crops such as banana, green onion garlic, celery, Kidney bean, melon, asparagus, peanut, beet, white rot are had good preventive effect.
The chemical name of the Tebuconazole that the present invention relates to is: (RS)-the 1-(4-chlorphenyl)-4,4-dimethyl-3-(1H-1,2,4 triazol-1-yl methyl) penta-3-alcohol.Former medicine is white crystal; a kind of interior absorption triazole bactericidal agent that has protection, treatment and eradicant action concurrently can be absorbed by tissues such as root of the crop, stem, leaves, and upwards conduction; show that through indoor determination of activity and field control effectiveness test result wheat scab is had the better prevention effect.
The chemical name of the Cyproconazole that the present invention relates to is: 2-(4-chlorphenyl)-3-cyclopropyl-1-(1H-1,2,4-triazol-1-yl) fourth-2-alcohol.Former medicine is clear crystal, is sterol demethylation inhibitor, is used for the seed treatment of important economic crops or the efficient germicide of foliage spray, can prevent and treat cereal and coffee rust effectively, cereal, fruit tree and grape powdery mildew, peanut, beet tops pinta, apple scab and peanut white rot.Use with other bactericide, can fine cereal eye spot disease, leaf spot and the net blotch of preventing and treating.
The chemical name of the Difenoconazole that the present invention relates to is: suitable, anti--3-chloro-4-[4-methyl-2-1H-1, and 2,4-triazol-1-yl methyl)-1,3-two mute pentane-2-yls) phenyl 4-chlorphenyl ether (suitable, inverse proportion is about 45:55).Former medicine is white crystal; a kind of interior absorption triazole bactericidal agent that has protection, treatment and eradicant action concurrently can be absorbed by tissues such as root of the crop, stem, leaves, and upwards conduction; show that through indoor determination of activity and field control effectiveness test result wheat powdery mildew is had the better prevention effect.
The tmtd chemical name that the present invention relates to is: the tetra methylthiuram disulfide.Be pale yellow powder, good fortune U.S.A of a kind of broad spectrum protection is bactericide, can treat bacterium classes such as eqpidemic disease and catch.Inhale conduction in tmtd does not have, but after being sprayed onto on the plant corpus, can good tackness be arranged at body surface, be difficult for being fallen by rain drop erosion, so the drug effect phase is longer.But because its service time is for a long time, the large tracts of land frequent application, it has produced certain resistance, influences its drug effect.
Embodiment 1
A kind of suspending agent that contains Tebuconazole and tmtd, by mass percentage, its composition of raw materials comprises Tebuconazole 10%, tmtd 30%, polycarboxylate 3.5%, fatty alcohol ether wetting agent 2% and 54.5% deionized water.
The preparation method of above-mentioned suspending agent is as follows: by prescription each raw material is joined in the stirred tank, after stirring, use the high shear machine pre-dispersed again, change the sand mill sand milling then over to, add sand milling medium zirconium oxide bead, the beginning sand milling, make the particle diameter of 90% material below 3 μ m, stop sand milling after 5 hours, filter, remove zirconium oxide bead, namely make the bactericidal composition suspending agent that contains Tebuconazole and tmtd.
Embodiment 2
A kind of wetting powder that contains Tebuconazole and tmtd, by mass percentage, its composition of raw materials comprises Tebuconazole 5%, tmtd 25%, polycarboxylate 8%, fatty alcohol ether wetting agent 2% and suitable filler.
The preparation method of above-mentioned wetting powder is as follows: by filling a prescription each raw material premixed, through coarse crushing, after mixing again, airslide disintegrating mill are pulverized, join in the cone-type mixer, mixed material fineness reaches 99% by 325 mesh standard sieves, namely makes the bactericidal composition wetting powder that contains Tebuconazole and tmtd.
Embodiment 3
A kind of water dispersible granules that contains Tebuconazole and tmtd, by mass percentage, its composition of raw materials comprises Tebuconazole 10%, tmtd 30%, polycarboxylate 10%, fatty alcohol ether wetting agent 3%, white carbon 3%, sodium carboxymethylcellulose 2%, ammonium sulfate 22%, filler polishing.
The preparation method of above-mentioned water dispersible granules is as follows: by filling a prescription each raw material premixed, through coarse crushing, after mixing again, airslide disintegrating mill are pulverized, join in the cone-type mixer, make mixed material fineness reach 99% by 325 mesh standard sieves, mediate through adding water, extruder grain, oven dry namely makes the bactericidal composition water dispersible granules that contains Tebuconazole and tmtd.
Embodiment 4
A kind of water dispersible granules that contains fluorine ring azoles and tmtd, by mass percentage, its composition of raw materials comprises fluorine ring azoles 10%, tmtd 30%, polycarboxylate 10%, fatty alcohol ether wetting agent 3% and ammonium sulfate 7%, filler polishing.The preparation process of this water dispersible granules is with embodiment 3.
Embodiment 5
A kind of suspending agent that contains fluorine ring azoles and tmtd, its composition of raw materials comprise fluorine ring azoles 10%, tmtd 30%, polycarboxylate 4%, fatty alcohol ether 2% and 54% deionized water, and the preparation process of this suspending agent is with embodiment 1.
Embodiment 6
A kind of wetting powder that contains fluorine ring azoles and tmtd, its composition of raw materials contain fluorine ring azoles 10%, tmtd 30%, polycarboxylate 4%, fatty alcohol ether 2%, filler 54%, and the preparation process of this wetting powder is with embodiment 2.
Example 1 assay
The appearance white flowable liquids
Example 2 assays
The appearance off-white loose powder
Example 3 assays
Exterior cylindrical shape particle
Example 4 assays
Exterior cylindrical shape particle
Example 5 assays
The appearance white flowable liquids
Example 6 assays
The appearance off-white loose powder
Performance test
With compound drug the indoor activity of wheat scab is measured, and to embodiment 1 to 7, Comparative Examples 1 and 2 and several bactericide of prior art carry out field control effectiveness test.
1, test method
Choose the consistent wheat of growth, before medication with the gibberellic hypha spray inoculation, use the test atomizer spray after 24 hours, carry out state of an illness investigation according to the morbidity grade scale after 14 days, and calculating control efficiency, calculate concentration EC50 in the inhibition with method of least squares then, calculate co-toxicity coefficient (CTC) according to the abundant method of Sun Yun again.
CTC≤80 expression composition performances are antagonism; When 80＜CTC＜120, the expression said composition shows as addition; When CTC 〉=120, the expression said composition shows as synergistic effect.
Actual measurement toxicity index (ATI)=(standard medicament EC50/ reagent agent EC50) * 100
The percentage composition of B in percentage composition+B medicament toxicity index * mixture of A in theoretical toxicity index (TTI)=A medicament toxicity index * mixture.
Co-toxicity coefficient (CTC)=[actual measurement toxicity index (ATI)/theoretical toxicity index (TTI)] * 100.
2, test result
See Table 1 and table 2.
The different bactericidal agents of table 1 are to the Toxicity Determination result of wheat scab
| Bactericide | EC50(μg/ml) | ATI | TTI | Co-toxicity coefficient CTC |
| Tebuconazole | 11.08 | 100.0 | --- | --- |
| Difenoconazole | 8.37 | 132.4 | --- | --- |
| Fluorine ring azoles | 5.38 | 205.9 | --- | --- |
| Tebuconazole: tmtd=1: 3 (mass ratio) | 5.32 | 208.3 | 111.3 | 187.2 |
| Tebuconazole: tmtd=1: 5 (mass ratio) | 3.47 | 319.3 | 126.5 | 252.4 |
| Fluorine ring azoles: tmtd=1: 3 (mass ratio) | 5.75 | 192.7 | 108.1 | 178.3 |
| Difenoconazole: tmtd=1: 3 (mass ratio) | 5.75 | 192.7 | 108.1 | 178.3 |
According to the bactericidal composition of triazole bactericidal agent of the present invention and tmtd composition wheat scab there is good control efficiency as can be seen from the test result of table 1, CTC is obviously greater than 170, and synergistic effect is remarkable, can improve preventive effect in actual the use, reduce dosage, reduce and use farming originally.
The field control effectiveness test result of table 2 chemical control wheat scab of the present invention disease
| Reagent agent | Mu consumption (g) | Head blight is prevented and treated result (%) |
| 50% tmtd wettable powder | 250ai | 52.65％ |
| The 430g/L tebuconazole suspension concentrates | 5ai | 70.62％ |
| 20% epoxiconazole suspension concentrate | 5ai | 63.12％ |
| 30% difenoconazole suspending agent | 5ai | 59.36％ |
| Embodiment 1 | 60 | 89.87％ |
| Embodiment 2 | 60 | 87.65％ |
| Embodiment 3 | 80 | 85.19％ |
| Embodiment 4 | 60 | 76.49％ |
| Embodiment 5 | 60 | 80.46％ |
| Embodiment 6 | 60 | 76.64％ |
| The clear water contrast | / | / |
To sum up; bactericidal composition of the present invention; remain good composite stability between two kinds of active components in use, compare expanding prevention disease scope with single agent triazole bactericidal agent or tmtd control corps diseases; suspension of pesticide resistance generation; obviously improve drug effect, reduced dosage and the spraying times of every mu of use, alleviated peasant burden; promote peasant's increasing both production and income, ensured agriculture safety in production better and protected ecotope.Be applied to agricultural plant chemoproection field, the harm of germs such as fruit tree, vegetables, wheat, paddy rice is had excellence, protection and therapeutic action efficiently, especially wheat scab is had special efficacy.
Above-described embodiment only is explanation technical conceive of the present invention and characteristics; its purpose is to allow the personage who is familiar with this technology can understand content of the present invention and enforcement according to this; can not limit protection scope of the present invention with this; all equivalences that spirit essence is done according to the present invention change or modify, and all should be encompassed within protection scope of the present invention.
Claims (10)
1. a bactericidal composition that contains triazole type and tmtd is characterized in that, comprises following component by mass percent: triazole bactericidal agent 1%～30%, tmtd 10%～60%, auxiliary agent 3%～15%; Wherein, described triazole bactericidal agent is one or more the combination in fluorine ring azoles, Tebuconazole, Cyproconazole and Difenoconazole, described auxiliary agent comprises polycarboxylate salt dispersant and fatty alcohol ether wetting agent, and the mass ratio of described polycarboxylate salt dispersant and fatty alcohol ether wetting agent is 1: 0.15～3.
2. the bactericidal composition of triazole type according to claim 1 and tmtd, it is characterized in that in the described composition, the mass ratio of triazole bactericidal agent and tmtd is 1: 1～6, in the described auxiliary agent, fatty alcohol ether wetting agent and polycarboxylate salt dispersant's mass ratio is 1: 1～3.
3. the bactericidal composition of triazole type according to claim 1 and 2 and tmtd is characterized in that, also comprises the deionized water of 20%～70% mass component in the described composition.
4. the preparation method of the bactericidal composition of a triazole type according to claim 3 and tmtd, it is characterized in that, comprise following preparation process: at first each raw material by formula ratio mixes, pre-dispersed under high speed shear, carry out sand milling through sand mill then, make the particle diameter of 90% material below 3 μ m, stop sand milling, remove by filter the bactericidal composition that the sand milling medium namely gets suspending agent type.
5. the bactericidal composition of triazole type according to claim 1 and 2 and tmtd is characterized in that, also comprises following component by mass percent in the described composition: ammonium sulfate 10%～40%; Sodium carboxymethylcellulose 0～2% and filler 0～70%.
6. the bactericidal composition of triazole type according to claim 5 and tmtd, it is characterized in that, described composition comprises following component by mass percent: Tebuconazole 1%～15%, tmtd 15%～30%, polycarboxylate 2%～6%, fatty alcohol ether wetting agent 1%～3%, ammonium sulfate 30%～40%, sodium carboxymethylcellulose 1%～2%, and filler 5%～15%.
7. the preparation method of the bactericidal composition of a triazole type according to claim 5 and tmtd, it is characterized in that, comprise following preparation process: at first with each raw material premixed of formula ratio, mixed material successively through coarse crushing, mix again, airslide disintegrating mill pulverizes, enter into cone-type mixer then and be mixed to the material fineness and reach 99% by 325 mesh standard sieves, afterwards, in material, add the water kneading, extruder grain is dried, and namely gets the bactericidal composition of water-dispersible grain formulation.
8. the bactericidal composition of triazole type according to claim 1 and 2 and tmtd is characterized in that, also comprises the filler of 0～70% mass component in the described composition.
9. the bactericidal composition of triazole type according to claim 8 and tmtd, it is characterized in that, described composition comprises following component by mass percent: Tebuconazole 1%～15%, tmtd 15%～40%, polycarboxylate 2%～6%, fatty alcohol ether wetting agent 1%～3% and filler 35%～70%.
10. the preparation method of the bactericidal composition of a triazole type according to claim 8 and tmtd, it is characterized in that, comprise following preparation process: at first with each raw material premixed of formula ratio, mixed material successively through coarse crushing, mix again, airslide disintegrating mill pulverizes, enter into cone-type mixer then and be mixed to the material fineness and reach 99% and namely get the bactericidal composition of wettable powder formulation by 325 mesh standard sieves.
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| CN105340931A (en) * | 2015-11-03 | 2016-02-24 | 北京市农林科学院 | Sterilization and bacteriostasis composition for preventing and treating grape powdery mildew and its preparation and use |
| CN113693078A (en) * | 2021-10-28 | 2021-11-26 | 潍坊新绿化工有限公司 | Herbicide containing anilofos, preparation method and application thereof |
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