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Paecilomyces javanicus and neem compounded pesticides

An insecticide, Paecilomyces spp. technology, applied in the field of pesticides, can solve the problems of low supply, undiscovered, limited azadirachtin resources, etc., and achieve the effects of reducing the amount of use, improving the control effect, and delaying the generation of pest resistance.

Inactive Publication Date: 2008-12-31
GUANGDONG XINJINGXIANG BIOLOGICAL ENG CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

It has the advantages of low toxicity to higher animals, low residue, and pests are not easy to develop drug resistance, but the resources of azadirachtin are limited, and the supply of azadirachtin preparations is far lower than the demand in production
At present, there is no relevant technical report on the compound insecticide of Paecilomyces javanica and azadirachtin

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0016] Embodiment 1: 20% Paecilomyces azadirachtin suspension concentrate (diluted 2000 times)

[0017] Part A is 40% Paecilomyces javanica conidia suspension: 40% Paecilomyces javanica conidia powder is dissolved in 0.21M phosphate buffer and 10% glycerol mixture, pH 7.0, at 4~ Store at 8°C.

[0018] Part B is wettable powder: azadirachtin (commercially available) 0.1%, Tween-80 20%, sodium lignosulfonate 6%, wetting agent LX 4%, add pottery clay to make up to 100%.

[0019] Part A and Part B each account for 50%, and the two parts are directly mixed to obtain a 20% Paecilomyces azadirachtin suspension concentrate, and the mass ratio of Paecilomyces javanica:Azadirachtin is 100:0.25. The results of the toxicity test are shown in Table 1.

Embodiment 2

[0020] Embodiment 2: 50% Paecilomyces javanica azadirachtin oil (diluted 2000 times)

[0021] Paecilomyces javanica powder (10 10 Individual / g) 50%, azadirachtin 0.1% (commercially available), Tween-805%, paraffin oil 23%, methyl green 2%, add diatomaceous earth and make up to 100%, make 50% Paecilomyces Azadirachtin Oil. Wherein, the mass ratio of Paecilomyces javanica powder: azadirachtin is 100:0.2. The results of the toxicity test are shown in Table 1.

Embodiment 3

[0022] Embodiment 3: 60% Paecilomyces azadirachtin oil (diluted 2000 times)

[0023] Paecilomyces javanica powder (10 10 Individual / g) 60%, azadirachtin 0.05% (commercially available), methyl green 2%, Tween-80 5%, paraffin oil 23%, kaolin supplemented to 100%, prepared 60% Paecilomyces javanica Neem oil. Among them, the mass ratio of Paecilomyces javanica powder: azadirachtin is 100:0.083. The results of the toxicity test are shown in Table 1.

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PUM

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Abstract

The invention discloses a mixed insecticide of paecilomyces javanicus and azadirachtin, which consists of a main agent and an adjuvant; according to the weight percent, the main agent is 20 - 60 percent, and the adjuvant is 40 - 80 percent; the main agent is the mixture of the paecilomyces javanicus and the azadirachtin, and the weight ratio of the paecilomyces javanicus and the azadirachtin is 100:0.05 - 0.25; and the adjuvant is a stabilizer, a promoter and a filler. The mixed insecticide of the invention can be processed into a wettable powder, a suspending agent or an oil agent. The mixed insecticide of the invention goes through long-term infection biology researches and indoor creature tests; by the researches and the tests, the mixed insecticide of the paecilomyces javanicus and the azadirachtin has good preventing effect on such pests as red imported fire ant, cotton leafworm, aphid, whitefly, diamondback moth, and the like, and moreover, the mixed insecticide can reduce the used amount of the azadirachtin in production practice, and can increase the quick effect of microbial insecticides and reduce chemical pesticide residues at the same time.

Description

technical field [0001] The invention belongs to the technical field of pesticides, and specifically relates to a microbial insecticide, in particular to an environmentally friendly, pollution-free, and residue-free compound insecticide of Paecilomyces javanica and azadirachtin. Background technique [0002] Paecilomyces javanicus Isaria javanicus (Friendrichs & Bally) is an entomopathogenic fungus. As a living biological pesticide, it has a new mechanism of action different from existing chemical insecticides, has no pollution to the environment, and has no residues. It can As an alternative control drug to control some insects resistant to Bacillus thuringiensis (Bt), it is of great economic significance to develop and utilize Paecilomyces javanica. Paecilomyces javanica is widely distributed and has good control effects on red fire ants, Spodoptera litura, aphids, whitefly and diamondback moth, etc., and has broad application prospects. [0003] Azadirachtin (azadirachtin...

Claims

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Application Information

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IPC IPC(8): A01N63/00A01N43/12A01P7/00
Inventor 黄振任顺祥
Owner GUANGDONG XINJINGXIANG BIOLOGICAL ENG CO LTD
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