Pesticide combination for preventing and controlling crop powdery mildew

A technology for pesticide compositions and crops, applied in the directions of chemicals, applications, biocides for biological control, etc., can solve problems such as no reports of fluoxamid and pyrimidine compositions and applications, and achieve the reduction of adverse effects, The effect of the drug is rapid, and the effect of reducing the dosage

Inactive Publication Date: 2015-10-21
GUANGDONG ZHONGXUN AGRI TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0007] There is no report on the composition and application of flufenapyroxad and pyrimidines

Method used

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  • Pesticide combination for preventing and controlling crop powdery mildew
  • Pesticide combination for preventing and controlling crop powdery mildew
  • Pesticide combination for preventing and controlling crop powdery mildew

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0022] Example 1: 18% flufenapyrazole pyrimethrimol suspension concentrate.

[0023] 2% flufenapyramide 1%, 16% pyrimethrimol, polycarboxylate 4% (dispersant), Nongru 700# 5% (emulsifier), sodium lauryl sulfate 2% (wetting agent) , xanthan gum 0.5% (thickener), silicone 0.5% (defoamer), urea 1% (antifreeze), deionized water to make up to 100%. The above formula is pre-crushed according to the proportion, then added to a sand mill for grinding, and then prepared after high-shear mixing to prepare 18% flufenapyrazole pyrimethrimol suspension concentrate.

Embodiment 2

[0024] Example 2: 21% flufenapyrazole pyrithrimol sulfonate emulsion in water.

[0025] 3% flufenapyramide, 18% pyrimethrin sulfonate, N-methylpyrrolidone (solvent) 10%, naphthalene (penetrant) 2%, calcium dodecylbenzenesulfonate (emulsifier) ​​6%, Nongru 600# phosphate (emulsifier) ​​5%, silicone (defoamer) 3%, xanthan gum (stabilizer) 0.5%, deionized water to make up to 100%. Mix the above-mentioned flufenapyroxam, solvent, penetrant, emulsifier, defoamer, and stabilizer evenly, and dissolve to obtain an oil phase; mix pyrimolsulfonate and deionized water to obtain a water phase; stir at high speed Next, the oil phase and the water phase were mixed to prepare a 21% flufenapyrazole pyrithrimol sulfonate aqueous emulsion.

Embodiment 3

[0026] Example 3: 21% flufenapyroxypyroxine microemulsion.

[0027] 3% flufenapyramide, 18% pyrimethrimol, 5% ethyl acetate, 6% diethyl phthalate, fully mixed and dissolved, enter the blending kettle, and then add 1% alkylphenol polyoxyethylene to the blending kettle Ether, 4% polyol fatty acid ester and its ethylene oxide adduct, 3% sodium di-sec-octyl maleate sulfonate, 1.5% antioxidant 264, fully stirred and dissolved, deionized water to make up to 100%. Continue to stir until transparent, and prepare 21% flufenapyramide·pyrimol microemulsion.

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Abstract

The invention discloses a pesticide combination for preventing and controlling crop powdery mildew. The pesticide combination for preventing and controlling crop powdery mildew consists of an active component a, an active component b and proper pesticide adjuvants, wherein the active component a is fluxapyroxad, the active component b is one of ethirimol and bupirimate; the weight ratio of the active component a to the active component b is 1:10 to 10:1, and the weight percentage of the active component a and the active component b in the combination is 1 to 90 percent. The pesticide combination disclosed by the invention is used for preventing and controlling crop powdery mildew, especially cucumber powdery mildew and grape powdery mildew. The pesticide combination disclosed by the invention has an obvious synergistic effect, the aspects of fast-acting property and long-lasting property are superior to that of a single dose, the use amount of pesticide is reduced, the pesticide cost is reduced and the environmental protection is facilitated.

Description

technical field [0001] The invention relates to a pesticide composition for preventing and treating powdery mildew of crops, which uses flufenapyramide and pyrithrimol (or pyrithrimol sulfonate) as active ingredients, and is used for preventing and curing cucumber and grape powdery mildew. Background technique [0002] The problem of resistance to agricultural diseases is a global problem, and it has always been the focus of attention of agricultural science and technology workers. With the continuation of chemical disease control year after year, the increase in the use of pesticides and the unscientific use of pesticides, the resistance of bacteria is becoming more and more serious, and the types of resistant bacteria are increasing. At the same time, the high-intensity use of pesticides leads to excessive pesticide residues in agricultural products, environmental pollution and increased costs of pesticides for farmers, which is not conducive to the sustainable development...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): A01N43/56A01P3/00A01N43/54
Inventor 吴泽伟陈佛祥王礼文朱刚张志伟颜石雷
Owner GUANGDONG ZHONGXUN AGRI TECH
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