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Compound pesticide

A technology of pesticides and stabilizers, which is applied in the field of compound biopesticides, can solve the problems of fungal spore activity, chemical pesticides, environmental pollution, increase in dosage and frequency of use, and increase in pesticide residues, so as to improve human health. levels, reducing usage, and delaying the effects of drug resistance

Inactive Publication Date: 2013-06-12
GUANGDONG ACAD OF FORESTRY
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The long-term use of a variety of chemical agents has resulted in an increase in the amount of pesticide residues in agricultural and forestry land, resulting in restrictions on the trade of various products in the international market, and the increase in the resistance of pests to pesticides and the killing of natural enemies by pesticides have also led to the increase in the amount of pesticides used and Increased frequency of application, often leading to recurrence of a pest
[0005] In order to improve the insecticidal rate of fungal insecticides and reduce the cost of use, fungal insecticides are used in combination with compatible chemical pesticides in production, but there are effects of compatible chemicals on the viability of fungal spores in the compound and chemical Pesticides on environmental pollution and other issues

Method used

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  • Compound pesticide
  • Compound pesticide

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Experimental program
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Effect test

Embodiment 1

[0031] Preparation weight percentage composition is 10% (metrhizium anisopliae+azadirachtin) suspension concentrate, and the weight ratio of each raw material is as follows:

[0032] Azadirachtin 0.2g

[0033] Metarhizium anisopliae 9.8g (15 billion spores / g, the same below)

[0034] Emulsifier 10g

[0035] Stabilizer 5g

[0036] Booster 5g

[0037] Antioxidant 0.5g

[0038] Co-solvent 14.5g

[0039] Organic solvent 55g.

[0040] Wherein the high sporopollen of Metarhizium anisopliae can be obtained in the following way (the same below): the collected Metarhizium anisopliae are separated and preserved indoors, and through indoor virulence determination, the metarhizium anisopliae with high toxicity to several forestry pests are screened out. A strain of M. anisopliae for the production of M. anisopliae spore powder. Adopt liquid-solid two-phase fermentation culture, use the closed fungal insecticide solid fermentation culture bag, inoculate the cultured Metarhizium anis...

Embodiment 2

[0043] Preparation weight percentage composition is 8% (metarrhizia + azadirachtin) suspension concentrate, and the weight ratio of each raw material is as follows:

[0044] Azadirachtin content 0.2g

[0045] Metarhizium anisopliae content 7.8g

[0046] Emulsifier 10g

[0047] Stabilizer 6g

[0048] Booster 6g

[0049] Antioxidant 0.5g

[0050] Co-solvent 14.5g

[0051] Organic solvent 55g.

[0052] The preparation process of the above formula insecticide suspension concentrate is: accurately weigh the high sporopollen of Metarhizium anisopliae and the original medicine of azadirachtin, and dissolve the original medicine of azadirachtin in the mixture containing part of antioxidant propyl gallate and stabilizer epoxy Add metarhizium anisopliae high sporopodium, emulsifier polysorbate ester, synergist chlorinated fat and cosolvent phenol to the solvent of soybean oil, and stir in airtight for 10-15min, then add remaining antioxidant, stabilizer and organic Solvent xylene...

Embodiment 3

[0054] Preparation weight percentage composition is 15% (metarrhizia + azadirachtin) suspension concentrate, and the weight ratio of each raw material is as follows:

[0055] Azadirachtin content 0.3g

[0056] Metarhizium anisopliae content 14.7g

[0057] Emulsifier 8g

[0058] Stabilizer 4g

[0059] Booster 4g

[0060] Antioxidant 0.5g

[0061] Co-solvent 13.5g

[0062] Organic solvent 55g.

[0063] The preparation process of the insecticide suspension of the above formula is: accurately weigh the high sporopollen of Metarhizium anisopliae and the original drug of azadirachtin, and dissolve the original drug of azadirachtin in the mixture containing part of the antioxidant dilauryl thiodipropionate and azadirachtin. In the solvent of stabilizer epoxidized linseed oil, add metarhizium anisopliae high sporopodium, emulsifier sodium alkyl sulfate, synergist synergist sulfone and cosolvent ethyl acetate, and stir in airtight for 10-15min, then add the remaining antibiotic Ox...

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Abstract

The invention discloses a compound pesticide, which is mainly prepared from the following raw materials in percentage by weight: 5-20% of azadirachtin and metarrhizium, 8-12% of emulsifier, 3-7% of stabilizer, 2-8% of synergist, 0.1-1.0% of antioxidant, 10-18% of cosolvent and 50-60% of organic solvent. The compound pesticide is environment-friendly, has high compatibility and obvious synergisticeffect, and can obviously improve the insecticidal toxicity of a single dosage and reduce the use of high-persistent chemical pesticide.

Description

technical field [0001] The invention relates to a compound biological insecticide, in particular to a compound insecticide of Metarhizium anisopliae and azadirachtin. Background technique [0002] Metarhizium anisopliae is a broad-spectrum entomopathogenic fungus, which is widely used in the control of various agricultural, forestry, animal husbandry and health pests. The research and application of Metarhizium anisopliae to control agricultural and forestry pests has a history of more than 100 years. In the past 20 years, more than 300 kinds of pests have been studied and applied by Metarhizium anisopliae around the world, and field control experiments have been carried out on about 100 kinds of pests. Bacteria fungal insecticide. Metarhizium anisopliae can be used in forestry for the biological control of underground pests in nurseries, tree termites, borer pests and leaf-eating pests. In agriculture, it can be used for the control of grubs in non-polluted vegetables, ri...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): A01N63/04A01N43/90A01P7/04
Inventor 徐金柱何雪香秦长生廖仿炎
Owner GUANGDONG ACAD OF FORESTRY
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