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Biogenic acaricidal water suspension composition and preparation method thereof

A technology of water suspensions and compositions, applied in the field of biogenic pesticide acaricides, can solve the problems of losing the advantages of biogenic pesticides, reducing the risk of resistance, and the risk of high drug resistance, so as to reduce the risk of drug resistance and delay drug resistance produce, synergistic effect

Inactive Publication Date: 2010-12-15
INST OF AGRI ENVIRONMENT & RESOURCES YUNNAN ACAD OF AGRI SCI
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] At present, there are many abamectin single agents and compound preparations combined with chemical pesticides in my country that have been registered in the control of agricultural pests such as diamondback moth and Liriomyza, but basically they are organic solvents containing aromatic hydrocarbons or cyclohexanone, DMF, etc. EC or microemulsions of toxic and harmful organic co-solvents, these products either have organic solvents that pollute the environment, or lose the advantages of bio-sourced pesticides due to chemical pesticide ingredients
However, the long-term use of a single agent of abamectin to control pest mites has a very high risk of drug resistance. The research and development of an environmentally friendly compound preparation that can reduce the risk of resistance and prolong the service life, and has the characteristics of natural products, is Abamectin. The key to the application of element in the control of agricultural pest mites

Method used

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  • Biogenic acaricidal water suspension composition and preparation method thereof
  • Biogenic acaricidal water suspension composition and preparation method thereof
  • Biogenic acaricidal water suspension composition and preparation method thereof

Examples

Experimental program
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Effect test

Embodiment 1

[0025] Product composition ① Active ingredients: Abamectin 1.8%, wintergreen oil 5.4%, eucalyptus oil 3.6%; ② Wetting agent: Nongru No. 600 0.5%; ③ Emulsifier: Nongru No. 1600 8%; ④ Dispersant : sodium dibutylnaphthalene sulfonate 1.5%, sodium lignosulfonate 2%; ⑤ thickener: xanthan gum 0.2%; ⑥ stabilizer: BHT 1.4%; ⑦ antifreeze: propylene glycol 1.5%, the balance tap water.

[0026] Preparation method: add tap water, wetting agent, and dispersant to a stirred reactor, and after it is completely dissolved, add the original drug of avermectin to make it fully wet, and then coarsely pulverize it through a colloid mill to obtain a slurry mixture; The above-mentioned slurry mixture is pumped into a sand mill for wet pulverization until the particles with a particle size in the range of 3 to 5 μm are greater than 90%, and a qualified abamectin aqueous suspension is obtained; the abamectin aqueous suspension is pumped Put into the high-shear mixer, then add oil of wintergreen, euca...

Embodiment 2

[0028] Repeat Example 1, with the following differences: 1. active ingredient: abamectin 3%, oil of wintergreen 12%, oil of eucalyptus 9%, 2. wetting agent: OP-101.5%; 3. emulsifier: No. 600 of agricultural milk %; ④ dispersant: polyvinylpyrrolidone 1.5%; ⑤ thickener: polyvinyl alcohol 1%; ⑥ stabilizer: tributyl phosphate 2%; ⑦ antifreeze: glycerol 1%, the balance of tap water.

Embodiment 3～7

[0030] The preparation process is the same as in Example 2, except that the emulsifier is 5% styrylphenyl polyoxyethylene ether (No. 600 of agricultural milk) and a kind of polyoxyethylene ether selected from alkylphenol formaldehyde resin (No. 700 of agricultural milk). ), phenylethylphenyl polyoxyethylene polyoxypropylene ether (Nongru No. 1600), styrylphenol formaldehyde resin polyoxyethylene-polyoxypropylene block polyether (Ningru No. 33), styrene phenol formaldehyde Resin polyoxyethylene polyoxypropylene ether (Ningru No. 34), styrene-based phenol formaldehyde resin polyoxyethylene ether (Ningru No. 37) is used in combination, and the amount of emulsifier is 12%.

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Abstract

The invention discloses a biogenic acaricidal water suspension composition and a preparation method thereof. In the preparation method, tap water is used as a medium, abamectin is pulverized by a wet method under the action of a wetting agent and a dispersing agent to form abamectin water suspensoid, wintergreen oil, eucalyptus oil, an emulsifier, a thickener, a stabilizer and an antifreeze are added into the water suspensoid sequentially, the mixture is homogenized and emulsified through a high-shear mixing emulsion machine, the emulsion is mixed fully to obtain the final water suspension, namely the biogenic acaricidal water suspension composition. Effective ingredients of the biogenic acaricidal water suspension composition are suspended in water in form of fine granules, so the biogenic acaricidal water suspension composition has the strong adhesive force and seepage force on body surfaces of plants and insects, resists rain erosion, gives full play to the medicinal effect and reduces environmental pollution. Therefore, the biogenic acaricidal water suspension composition is excellent acaricide for preventing and controlling crop mites.

Description

technical field [0001] The present invention relates to biological source pesticide acaricide, more specifically, the present invention relates to a kind of biological source acaricide aqueous suspension concentrate composition. At the same time, the present invention also relates to a preparation method of the biological source acaricidal aqueous suspension composition. Background technique [0002] Pest mites are the main pests that harm flowers, fruit trees, vegetables and other crops. Crops that are harmed by mites directly cause leaf drop, bud drop, and fruit drop, ranging from reduced yield to serious loss of harvest or death of the entire plant, causing major economic losses. . In order to effectively control the harm of mites, the main method at present is to spray a large amount of chemical acaricides. Excessive use and abuse of chemical acaricides will directly lead to the killing of natural enemies, the resistance of harmful mites will multiply, and the damage wi...

Claims

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Application Information

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IPC IPC(8): A01N65/08A01N43/90A01N25/04A01N25/00A01P7/02
CPCY02A50/30
Inventor 浦恩堂吴文伟何成兴郭志祥尹可锁林莉温丽娜
Owner INST OF AGRI ENVIRONMENT & RESOURCES YUNNAN ACAD OF AGRI SCI
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