CN107232241A - A kind of composition for preventing and treating wheat powdery mildew and preparation method thereof - Google Patents

A kind of composition for preventing and treating wheat powdery mildew and preparation method thereof Download PDF

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Publication number
CN107232241A
CN107232241A CN201710428587.XA CN201710428587A CN107232241A CN 107232241 A CN107232241 A CN 107232241A CN 201710428587 A CN201710428587 A CN 201710428587A CN 107232241 A CN107232241 A CN 107232241A
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parts
powdery mildew
wheat powdery
composition
preventing
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刘涛
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Hefei Long Chemical Technology Co Ltd
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Hefei Long Chemical Technology Co Ltd
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    • AHUMAN NECESSITIES
    • A01AGRICULTURE; FORESTRY; ANIMAL HUSBANDRY; HUNTING; TRAPPING; FISHING
    • A01NPRESERVATION OF BODIES OF HUMANS OR ANIMALS OR PLANTS OR PARTS THEREOF; BIOCIDES, e.g. AS DISINFECTANTS, AS PESTICIDES OR AS HERBICIDES; PEST REPELLANTS OR ATTRACTANTS; PLANT GROWTH REGULATORS
    • A01N65/00Biocides, pest repellants or attractants, or plant growth regulators containing material from algae, lichens, bryophyta, multi-cellular fungi or plants, or extracts thereof
    • AHUMAN NECESSITIES
    • A01AGRICULTURE; FORESTRY; ANIMAL HUSBANDRY; HUNTING; TRAPPING; FISHING
    • A01NPRESERVATION OF BODIES OF HUMANS OR ANIMALS OR PLANTS OR PARTS THEREOF; BIOCIDES, e.g. AS DISINFECTANTS, AS PESTICIDES OR AS HERBICIDES; PEST REPELLANTS OR ATTRACTANTS; PLANT GROWTH REGULATORS
    • A01N25/00Biocides, pest repellants or attractants, or plant growth regulators, characterised by their forms, or by their non-active ingredients or by their methods of application, e.g. seed treatment or sequential application; Substances for reducing the noxious effect of the active ingredients to organisms other than pests
    • A01N25/08Biocides, pest repellants or attractants, or plant growth regulators, characterised by their forms, or by their non-active ingredients or by their methods of application, e.g. seed treatment or sequential application; Substances for reducing the noxious effect of the active ingredients to organisms other than pests containing solids as carriers or diluents
    • A01N25/10Macromolecular compounds
    • AHUMAN NECESSITIES
    • A01AGRICULTURE; FORESTRY; ANIMAL HUSBANDRY; HUNTING; TRAPPING; FISHING
    • A01NPRESERVATION OF BODIES OF HUMANS OR ANIMALS OR PLANTS OR PARTS THEREOF; BIOCIDES, e.g. AS DISINFECTANTS, AS PESTICIDES OR AS HERBICIDES; PEST REPELLANTS OR ATTRACTANTS; PLANT GROWTH REGULATORS
    • A01N43/00Biocides, pest repellants or attractants, or plant growth regulators containing heterocyclic compounds
    • A01N43/64Biocides, pest repellants or attractants, or plant growth regulators containing heterocyclic compounds having rings with three nitrogen atoms as the only ring hetero atoms
    • A01N43/647Triazoles; Hydrogenated triazoles
    • A01N43/6531,2,4-Triazoles; Hydrogenated 1,2,4-triazoles
    • AHUMAN NECESSITIES
    • A01AGRICULTURE; FORESTRY; ANIMAL HUSBANDRY; HUNTING; TRAPPING; FISHING
    • A01NPRESERVATION OF BODIES OF HUMANS OR ANIMALS OR PLANTS OR PARTS THEREOF; BIOCIDES, e.g. AS DISINFECTANTS, AS PESTICIDES OR AS HERBICIDES; PEST REPELLANTS OR ATTRACTANTS; PLANT GROWTH REGULATORS
    • A01N65/00Biocides, pest repellants or attractants, or plant growth regulators containing material from algae, lichens, bryophyta, multi-cellular fungi or plants, or extracts thereof
    • A01N65/08Magnoliopsida [dicotyledons]
    • A01N65/30Polygonaceae [Buckwheat family], e.g. red-knees or rhubarb
    • YGENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02ATECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE
    • Y02A50/00TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE in human health protection, e.g. against extreme weather
    • Y02A50/30Against vector-borne diseases, e.g. mosquito-borne, fly-borne, tick-borne or waterborne diseases whose impact is exacerbated by climate change

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  • Life Sciences & Earth Sciences (AREA)
  • Health & Medical Sciences (AREA)
  • General Health & Medical Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Environmental Sciences (AREA)
  • Plant Pathology (AREA)
  • Dentistry (AREA)
  • Wood Science & Technology (AREA)
  • Zoology (AREA)
  • Agronomy & Crop Science (AREA)
  • Biotechnology (AREA)
  • Microbiology (AREA)
  • Mycology (AREA)
  • Natural Medicines & Medicinal Plants (AREA)
  • Pest Control & Pesticides (AREA)
  • Toxicology (AREA)
  • Agricultural Chemicals And Associated Chemicals (AREA)

Abstract

The present invention relates to a kind of composition for preventing and treating wheat powdery mildew and preparation method thereof, in parts by weight, including 20 30 parts of 10 15 parts of metconazole, 10 15 parts of SSF109,35 parts of Chinese rhubarb extract, 0.3 0.7 parts of silicate, 0.1 0.5 parts of agrochemical fertilizer sustained release agent, 30 40 parts of solvent, 13 parts of cosolvent, 58 parts of emulsifying agent, 5 10 parts of dispersant, 15 parts of thickener, 13 parts of antifreezing agent, 13 parts of defoamer and water.Present composition effective active composition metconazole, SSF109, the mutual mixture of Chinese rhubarb extract three will not produce conflict;There is good synergistic effect within the specific limits, preventive effect is higher than single dose, and drug effect is more longlasting;Delay drug-fast generation, reduced agricultural chemicals Reusability number of times, reduced Pesticide use amount, reduce the use cost of agricultural chemicals;There is special efficacy to preventing and treating wheat powdery mildew, it is also effective to rust, damping-off.

Description

A kind of composition for preventing and treating wheat powdery mildew and preparation method thereof
Technical field
The present invention relates to a kind of composition for preventing and treating wheat powdery mildew and preparation method thereof, belong to pesticide field.
Background technology
Wheat powdery mildew is a kind of worldwide disease, is caused by dlumeria graminis, is the Major Diseases for threatening Wheat Production One of.It is distributed in each main wheat producing countries, China's Along The Coast of Shandong Province, Sichuan, Guizhou, Yunnan occur generally, to cause harm and also weigh.In recent years Carry out the disease in northeast, North China, the northwest area of wheat, also there is the gesture being on the rise.The disease can encroach on each organ of wheat plant overground part, but Based on blade and leaf sheath, glume and awns also can be aggrieved during morbidity weight.
Wheat powdery mildew is taken place mostly on blade, can also be betided on plant leaf sheath, stalk and fringe.General leaf front disease Spot is more compared with leaf back, and lower blade is compared with upper blade disease weight.Sick portion surface has the mould layer of layer white powder shape, and sick portion occurs white at first The thread mildew of color, gradually expands and mutually combines, the big portion of blade can be covered in the mildew that oblong is larger, when serious, even Whole, mould thickness degree is in gradually powdery up to 2 millimeters.Later stage mould layer is gradually changed into grey, upper raw black from white Grain.Leaf early stage turns yellow, and curling is withered, and grave illness strain is usually stunt and can not eared.Symptom:Main blade of causing harm, when being in a bad way Can be caused harm leaf sheath, stalk and fringe portion.Can all occur from seedling to Adult plant.Scab position grows thread white mildew initial stage, with Afterwards surface covering mould layer gradually thicken, like villiform, color gradually becomes grey by white, be germ conidiophore and divide Raw spore.Later stage scattered black dot, i.e. germ it is sexual enter generation, cleistothecium.
Due in the various identification of powdery mildew cause of disease biological strain is difficult, external world's experimental enviroment is inconsistent and Cucumber Germplasm is poor Different, the hereditation mechanism progress breeding for disease resistance work for studying the powder mildew resistance of wheat germplasm is extremely complex.Even if moreover, choosing With disease-resistant wheat breed, due to the Species differences of country variant interzone powdery mildew, it is likely to cause this disease still to occur, Therefore, the preventing and treating for wheat powdery mildew primarily focuses on chemical prevention.The existing bactericide site mode of action is single, germ Easily developed immunity to drugs under the selection pressure of medicament.And largely use for a long time so that the resistance to the action of a drug, high residue, pollution environment etc. Adverse effect is increasingly dashed forward.
Botanical pesticide then has the superiority of uniqueness in this respect.Botanical pesticide is biology most ancient in human history One of agricultural chemicals, it is derived from naturally, for naturally, can degrade rapidly, no environmental problem has high selectivity, to person poultry safety, and Do not produce also resistance, without poisoning, have fertilizer efficiency, have stimulation to plant growth, the advantages of simultaneous can controlling pest and disease damage has turned into One of green bio agricultural chemicals first choice.China's Insecticidal Plant Resource very abundant.Different plants includes various types of Compound, they also show different physiologically actives, as chemical pesticide can to plant insect produce lure, repellent, poison Kill, the effect that food refusal and regulation and interference insect grow.
Found by being retrieved to prior art literature, field little Wei etc.《One plant of actinomyces secondary metabolite antibacterial activity Primary Study》Middle to find, report actinomyces NO.24 zymotic fluids have significant preventive effect to wheat powdery mildew.Yang Sanwei etc.《Several plantations Prevention effect research of the material resource crude extract to wheat powdery mildew》Several plant crude extract is determined with greenhouse pot culture method to white wheat The prevention effect of powder disease, finds rheum officinale, and the crude extract such as the coptis has obvious prevention effect to wheat powdery mildew.But it is to planting Thing material has done simple extraction, has no the formulation research that synergist is added to wheat powdery mildew.
The content of the invention
The present invention provides a kind of composition for preventing and treating wheat powdery mildew and preparation method thereof, solves existing chemical prevention small Wheat powdery mildew, it is necessary to largely be used for a long time so that the adverse effect such as the resistance to the action of a drug, high residue, pollution environment is increasingly dashed forward and existing The low problem of botanical pesticide effect.
In order to solve the above technical problems, the technical solution adopted by the present invention is:
A kind of composition for preventing and treating wheat powdery mildew, in parts by weight, including 10-15 parts of metconazole, SSF109 10-15 Part, 3-5 parts of Chinese rhubarb extract, 0.3-0.7 parts of silicate, 0.1-0.5 parts of agrochemical fertilizer sustained release agent, 30-40 parts of solvent, cosolvent 1-3 parts, 5-8 parts of emulsifying agent, 5-10 parts of dispersant, 1-5 parts of thickener, 1-3 parts of antifreezing agent, 1-3 parts of defoamer and water 20-30 Part.
Preferably:Described solvent include methanol, ethanol, ethyl acetate, dimethylbenzene, toluene, chloroform, cyclohexanone, One or more of mixing in isobutanol.
Preferably:Described cosolvent is one or more of compositions in acetone, n-butanol, isopropanol, n-amyl alcohol.
Preferably:Described emulsifying agent is Tween-20, Tween 80, castor oil polyoxyethylene ether, DBSA One or more of compositions in calcium, phenethyl phenol polyoxyethylene poly-oxygen propylene aether, NP series, BY series, OP series.
Preferably:Described dispersant is lauryl sodium sulfate, AEO, sulfosuccinate dioctyl phthalate One kind in sodium salt, alkylnaphthalene sulfonate formaldehyde condensation products, sodium lignin sulfonate, fatty acid polyethylene glycol ester, polyacrylamide Or several compositions.
Preferably:Described thickener is Sodium Hydroxymethyl Stalcs, polyvinylpyrrolidone, sanlose, poly- One or more of compositions in vinyl alcohol.
Preferably:Described antifreezing agent is one or more of compositions of ethylene glycol, propane diols, glycerine, urea, ammonium sulfate.
Preferably:Defoamer is silicone oil, silicone compound, C10-20 saturated fat acid compounds, C 8-10 fat At least one of alcohol compound.
Preferably:The preparation method of described Chinese rhubarb extract is:The rheum officinale after crushing is weighed, according to rheum officinale and 80% second The solid-liquid ratio of alcohol is 1g:5ml ratio adds 80% ethanol soaks and ultrasonic cleaner (50khz) is put into after 24h surpasses at room temperature Sound is extracted 10 minutes, filtering, is concentrated under reduced pressure, and is freeze-dried, and both obtains Chinese rhubarb extract.
Present invention provides a kind of preparation method for the composition for preventing and treating wheat powdery mildew, comprise the following steps:
(1) by metconazole, SSF109, Chinese rhubarb extract, agrochemical fertilizer sustained release agent, solvent, cosolvent, dispersant and emulsification Agent is mixed, and is allowed to be dissolved into uniform oil phase;
(2) silicate, water, antifreezing agent, thickener and defoamer are mixed into uniform aqueous phase;
(3) in a kettle. high-speed stirred while oil phase is added into aqueous phase, slowly add water until reach phase inversion point, open Cutter carries out high speed shear, shears 20 minutes to 1 hour, forms the aqueous emulsion of oil-in-water type, must prevent and treat wheat powdery mildew Composition.
Beneficial effects of the present invention:
Present composition effective active composition metconazole, SSF109, the mutual mixture of Chinese rhubarb extract three will not be produced Contradict;There is good synergistic effect within the specific limits, preventive effect is higher than single dose, and drug effect is more longlasting;Delay drug-fast generation, Agricultural chemicals Reusability number of times is reduced, Pesticide use amount is reduced, the use cost of agricultural chemicals is reduced;There is spy to preventing and treating wheat powdery mildew Effect is also effective to rust, damping-off.
The agrochemical fertilizer sustained release agent that the present invention is used is Shijiazhuang Jianyuan Starch Derivative Co., Ltd.'s production, the agricultural chemicals Fertilizer slow-release formulation is developed by natural macromolecular material, can be degraded automatically, environment-protecting and non-poisonous.The end product that it is decomposed is not Containing poisonous metal, the chemical quality of agricultural chemicals will not be had a negative impact, be conducive to environmental protection, be to aid in improving pesticide market " the natural environmental-protective type insecticides adjuvant of competitiveness.Add after the patented product, can significantly subtract in pulvis, liquid, granular agrochemical The evaporation leaching loss of few agricultural chemicals, with good sustained release and synergistic effect, to different active compounds, nitrate enhancement up to 6 to 20 times, The reference consumption of agricultural chemicals can be reduced in actual use up to more than 50%, be a kind of saving, heavy duty detergent auxiliary agent again.Add agricultural chemicals Fertilizer slow-release formulation effectively raises drug effect, reduces the usage amount of agricultural chemicals.
Embodiment
Below in conjunction with the specific embodiment of the invention, technical scheme is clearly and completely described, shown So, described embodiment is only a part of embodiment of the invention, rather than whole embodiments.Based on the reality in the present invention Example is applied, the every other embodiment that those of ordinary skill in the art are obtained under the premise of creative work is not made all belongs to In the scope of protection of the invention.
Embodiment 1
A kind of composition for preventing and treating wheat powdery mildew, in parts by weight, including it is 10 parts of metconazole, 13 parts of SSF109, big Yellow 3 parts of extract, 0.5 part of potassium silicate, 0.5 part of agrochemical fertilizer sustained release agent, 30 parts of solvent, 1 part of cosolvent, 6 parts of emulsifying agent disperse 10 parts of agent, 3 parts of thickener, 2 parts of antifreezing agent, 3 parts of defoamer, 20 parts of water.
Solvent is ethanol, and cosolvent is acetone, and emulsifying agent is Tween-20, and dispersant is lauryl sodium sulfate, thickener It is Sodium Hydroxymethyl Stalcs, antifreezing agent is ethylene glycol, and defoamer is silicone oil.
The preparation method of Chinese rhubarb extract is:The rheum officinale after crushing is weighed, is according to the solid-liquid ratio of rheum officinale and 80% ethanol 1g:5ml ratio 80% ethanol of addition soaks at room temperature is put into ultrasonic cleaner (50khz) ultrasonic extraction 10 minutes after 24h, Filtering, is concentrated under reduced pressure, and is freeze-dried, and both obtains Chinese rhubarb extract.
Its preparation method, comprises the following steps:
(1) by metconazole, SSF109, Chinese rhubarb extract, agrochemical fertilizer sustained release agent, solvent, cosolvent, dispersant and emulsification Agent is mixed, and is allowed to be dissolved into uniform oil phase;
(2) silicate, water, antifreezing agent, thickener and defoamer are mixed into uniform aqueous phase;
(3) in a kettle. high-speed stirred while oil phase is added into aqueous phase, slowly add water until reach phase inversion point, open Cutter carries out high speed shear, shears 20 minutes to 1 hour, forms the aqueous emulsion of oil-in-water type, must prevent and treat wheat powdery mildew Composition.
With the above-mentioned botanical pesticide for preventing and treating powdery mildew, prevention experiment is carried out to wheat powdery mildew, test method is used The part of farm-chemical indoor determination test rule bactericide the 4th:Prevent and treat wheat powdery mildew experiment pot-culture method (NY/T 1156.4- 2006).Preventive effect respectively reaches 93.6% (100 times of dilution), 85.4% (150 times of dilution), 73.2% in potted plant experiment (200 times of dilution).
Embodiment 2
A kind of composition for preventing and treating wheat powdery mildew, in parts by weight, including it is 13 parts of metconazole, 15 parts of SSF109, big Yellow 4 parts of extract, 0.3 part of potassium silicate, 0.1 part of agrochemical fertilizer sustained release agent, 35 parts of solvent, 2 parts of cosolvent, 5 parts of emulsifying agent disperse 8 parts of agent, 1 part of thickener, 1 part of antifreezing agent, 1 part of defoamer, 25 parts of water.
Solvent is dimethylbenzene, and cosolvent is n-butanol, and emulsifying agent is calcium dodecyl benzene sulfonate, and dispersant is dodecyl Sodium sulphate, thickener is polyvinylpyrrolidone, and antifreezing agent is glycerine, and defoamer is silicone oil.
The preparation method of Chinese rhubarb extract is:The rheum officinale after crushing is weighed, is according to the solid-liquid ratio of rheum officinale and 80% ethanol 1g:5ml ratio 80% ethanol of addition soaks at room temperature is put into ultrasonic cleaner (50khz) ultrasonic extraction 10 minutes after 24h, Filtering, is concentrated under reduced pressure, and is freeze-dried, and both obtains Chinese rhubarb extract.
Its preparation method is in the same manner as in Example 1.
With the above-mentioned botanical pesticide for preventing and treating powdery mildew, prevention experiment is carried out to wheat powdery mildew, test method is used The part of farm-chemical indoor determination test rule bactericide the 4th:Prevent and treat wheat powdery mildew experiment pot-culture method (NY/T 1156.4- 2006).Preventive effect respectively reaches 95.2% (100 times of dilution), 86.7% (150 times of dilution), 76.5% in potted plant experiment (200 times of dilution).
Embodiment 3
A kind of composition for preventing and treating wheat powdery mildew, in parts by weight, including it is 15 parts of metconazole, 10 parts of SSF109, big Yellow 5 parts of extract, 0.7 part of sodium metasilicate, 0.3 part of agrochemical fertilizer sustained release agent, 40 parts of solvent, 3 parts of cosolvent, 8 parts of emulsifying agent disperse 5 parts of agent, 5 parts of thickener, 3 parts of antifreezing agent, 2 parts of defoamer, 30 parts of water.
Solvent is isobutanol, and cosolvent is acetone, and emulsifying agent is Tween 80, and dispersant is polyacrylamide, and thickener is Sanlose, antifreezing agent is urea, and defoamer is silicone oil.
The preparation method of Chinese rhubarb extract is:The rheum officinale after crushing is weighed, is according to the solid-liquid ratio of rheum officinale and 80% ethanol 1g:5ml ratio 80% ethanol of addition soaks at room temperature is put into ultrasonic cleaner (50khz) ultrasonic extraction 10 minutes after 24h, Filtering, is concentrated under reduced pressure, and is freeze-dried, and both obtains Chinese rhubarb extract.
Its preparation method is in the same manner as in Example 1.
With the above-mentioned botanical pesticide for preventing and treating powdery mildew, prevention experiment is carried out to wheat powdery mildew, test method is used The part of farm-chemical indoor determination test rule bactericide the 4th:Prevent and treat wheat powdery mildew experiment pot-culture method (NY/T 1156.4- 2006).Preventive effect respectively reaches 94.2% (100 times of dilution), 86.3% (150 times of dilution), 75.6% in potted plant experiment (200 times of dilution).
The foregoing is merely illustrative of the preferred embodiments of the present invention, is not intended to limit the invention, all essences in the present invention God is with principle, and any modification, equivalent substitution and improvements made etc. should be included in the scope of the protection.

Claims (10)

1. a kind of composition for preventing and treating wheat powdery mildew, it is characterised in that in parts by weight, including 10-15 parts of metconazole, ring 10-15 parts of bacterium azoles, 3-5 parts of Chinese rhubarb extract, 0.3-0.7 parts of silicate, 0.1-0.5 parts of agrochemical fertilizer sustained release agent, solvent 30-40 Part, 1-3 parts of cosolvent, 5-8 parts of emulsifying agent, 5-10 parts of dispersant, 1-5 parts of thickener, 1-3 parts of antifreezing agent, 1-3 parts of defoamer and 20-30 parts of water.
2. according to claim 1 it is a kind of prevent and treat wheat powdery mildew composition, it is characterised in that:Described solvent includes One or more of mixing in methanol, ethanol, ethyl acetate, dimethylbenzene, toluene, chloroform, cyclohexanone, isobutanol.
3. according to claim 1 it is a kind of prevent and treat wheat powdery mildew composition, it is characterised in that:Described cosolvent is One or more of compositions in acetone, n-butanol, isopropanol, n-amyl alcohol.
4. according to claim 1 it is a kind of prevent and treat wheat powdery mildew composition, it is characterised in that:Described emulsifying agent is Tween-20, Tween 80, castor oil polyoxyethylene ether, calcium dodecyl benzene sulfonate, phenethyl phenol polyoxyethylene polyoxypropylene One or more of compositions in ether, NP series, BY series, OP series.
5. according to claim 1 it is a kind of prevent and treat wheat powdery mildew composition, it is characterised in that:Described dispersant is Lauryl sodium sulfate, AEO, aerosol-OT salt, alkylnaphthalene sulfonate formaldehyde condensation products, One or more of compositions in sodium lignin sulfonate, fatty acid polyethylene glycol ester, polyacrylamide.
6. according to claim 1 it is a kind of prevent and treat wheat powdery mildew composition, it is characterised in that:Described thickener is One or more of compositions in Sodium Hydroxymethyl Stalcs, polyvinylpyrrolidone, sanlose, polyvinyl alcohol.
7. according to claim 1 it is a kind of prevent and treat wheat powdery mildew composition, it is characterised in that:Described antifreezing agent is second Glycol, propane diols, glycerine, urea, one or more of compositions of ammonium sulfate.
8. according to claim 1 it is a kind of prevent and treat wheat powdery mildew composition, it is characterised in that:Defoamer is silicone oil, silicon At least one of ketone compounds, C10-20 saturated fat acid compounds, C 8-10 aliphatic alcohols compounds.
9. a kind of composition for preventing and treating wheat powdery mildew according to claim 1, it is characterised in that:Described rheum officinale is extracted The preparation method of thing is:The rheum officinale after crushing is weighed, is 1g according to the solid-liquid ratio of rheum officinale and 80% ethanol:5ml ratio is added 80% ethanol soaks at room temperature is put into ultrasonic cleaner (50khz) ultrasonic extraction 10 minutes after 24h, filtering, is concentrated under reduced pressure, cold It is lyophilized dry, both obtain Chinese rhubarb extract.
10. a kind of preparation method of the composition of preventing and treating wheat powdery mildew as described in claim any one of 1-9, its feature exists In comprising the following steps:
(1) metconazole, SSF109, Chinese rhubarb extract, agrochemical fertilizer sustained release agent, solvent, cosolvent, dispersant and emulsifying agent are mixed It is combined, is allowed to be dissolved into uniform oil phase;
(2) silicate, water, antifreezing agent, thickener and defoamer are mixed into uniform aqueous phase;
(3) in a kettle. high-speed stirred while oil phase is added into aqueous phase, slowly add water until reach phase inversion point, open shearing Machine carries out high speed shear, shears 20 minutes to 1 hour, forms the aqueous emulsion of oil-in-water type, must prevent and treat the combination of wheat powdery mildew Thing.
CN201710428587.XA 2017-06-08 2017-06-08 A kind of composition for preventing and treating wheat powdery mildew and preparation method thereof Pending CN107232241A (en)

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Cited By (1)

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Publication number Priority date Publication date Assignee Title
CN109526958A (en) * 2018-12-06 2019-03-29 江苏辉丰生物农业股份有限公司 Microbicide compositions containing rheum emodin and metconazole

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CN103688945A (en) * 2013-12-10 2014-04-02 济南凯因生物科技有限公司 Composition for controlling wheat powdery mildew
CN105638770A (en) * 2014-11-14 2016-06-08 天津乾鼎华科技发展有限责任公司 Wheat powdery mildew control medicament and preparation method thereof

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Publication number Priority date Publication date Assignee Title
CN103688945A (en) * 2013-12-10 2014-04-02 济南凯因生物科技有限公司 Composition for controlling wheat powdery mildew
CN105638770A (en) * 2014-11-14 2016-06-08 天津乾鼎华科技发展有限责任公司 Wheat powdery mildew control medicament and preparation method thereof

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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN109526958A (en) * 2018-12-06 2019-03-29 江苏辉丰生物农业股份有限公司 Microbicide compositions containing rheum emodin and metconazole

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Application publication date: 20171010