A kind of pesticide composition containing Bacillus thuringiensis

A Bacillus thuringiensis and pesticide composition technology is applied in the field of pesticides to achieve the effects of delaying resistance, obvious synergy and reducing application amount

Active Publication Date: 2018-07-31
邯郸市建华植物农药厂
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] Combining pesticides with different mechanisms of action is a simple and quick way to solve the problem of pest resistance. Currently, Bacillus thuringiensis, emamectin benzoate and clothianidin are used as the main control agents for Plutella xylostella There are no related reports

Method used

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  • A kind of pesticide composition containing Bacillus thuringiensis
  • A kind of pesticide composition containing Bacillus thuringiensis
  • A kind of pesticide composition containing Bacillus thuringiensis

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0018] Embodiment 1: Indoor toxicity determination of Bacillus thuringiensis, emamectin benzoate and clothianidin and mixture to Plutella xylostella

[0019] (1) Tested insects: Pupa and mature larvae of Plutella xylostella were collected from the cabbage field in the suburbs of Chengdu. They emerged as adults in a net room, mated and laid eggs on potted cabbage, and grew to the third instar larvae for later use.

[0020] (2) Experimental design: The effective lethal concentration ranges of Bacillus thuringiensis, emamectin benzoate, clothianidin and different mixtures were determined through preliminary experiments, and each agent was designed according to the content of active ingredients Five gradient concentrations were treated, and a blank treatment without the original drug was used as a control.

[0021] (3) Test method: During the test, the mother liquors of Bacillus thuringiensis, emamectin benzoate, clothianidin and each compounding agent were diluted into 5 series o...

Embodiment 2

[0030] Example 2: 0.5% emamectin benzoate 3.0% clothianidin 2000IU / mg Bacillus thuringiensis suspension

[0031] Prescription: take by weighing 75% emamectin benzoate former medicine 0.67kg, 97% clothianidin former medicine 3.1kg, 50000IU / milligram Bacillus thuringiensis former medicine 4.0kg, naphthalenesulfonate formaldehyde condensate ( Dispersant) 7.5kg, calcium dodecylbenzenesulfonate (emulsifier) ​​5.0kg, xanthan gum (thickener) 2.5kg, isopropanol (defoamer) 2.5kg, deionized water to make up to 100kg.

Embodiment 3

[0032] Example 3: 0.2% emamectin benzoate 2.0% clothianidin 4000IU / mg Bacillus thuringiensis suspension

[0033] Prescription: take by weighing 75% emamectin benzoate former medicine 0.27kg, 97% clothianidin former medicine 2.06kg, 50000IU / milligram Bacillus thuringiensis former medicine 8.0kg, naphthalenesulfonate formaldehyde condensate ( Dispersant) 2.5kg, alkylphenol polyoxyethylene ether (wetting agent) 2.5kg, calcium dodecylbenzenesulfonate (emulsifier) ​​5.0kg, xanthan gum (thickener) 1.5kg, isopropanol (Defoamer) 1.5kg, make up to 100kg with deionized water.

[0034] Preparation method: mix the formula components described in the above-mentioned examples 1-3 uniformly, mix uniformly through high-speed shearing, and ball mill in a ball mill for 2 to 3 hours, so that the particle diameters of all the particles are below 5 μm, and the present invention is prepared. suspension products.

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Abstract

The invention relates to a bacillus thuringiensis-containing pesticide composite. The active ingredients of the composite consist of bacillus thuringiensis, emamectin benzoate and clothianidin. 50,000 IU / milligram active ingredient is set as 100 percent active ingredient, and the bacillus thuringiensis, the emamectin benzoate and the clothianidin in the composite are in the weight ratio of (0.2-1):(1-3):(2-8). The three pesticide components of the bacillus thuringiensis-containing pesticide composite have different action mechanisms, and the synergistic interaction is obvious when the three pesticide components are mixed for use, so that the bacillus thuringiensis-containing pesticide composite is favorable to reduce the application amount of the pesticide and reduce the cost of the pesticide; the pesticides with different action mechanisms are mixed and prepared, so that the resistance of pests to a single preparation is favorably delayed, and the service cycle of the preparation is prolonged.

Description

technical field [0001] The invention relates to the technical field of pesticides, in particular to a pesticide composition containing Bacillus thuringiensis. Background technique [0002] Plutella xylostella, belonging to Lepidoptera, Plutellaidae, is an important pest in the production of cruciferous vegetables. The first instar larvae of Plutella xylostella eat the mesophyll, leaving the epidermis and forming transparent spots on the vegetable leaves. The 3-4 instar larvae can eat the vegetable leaves into holes and nicks, and in severe cases, the whole leaf is eaten into a net shape. Seriously affect the yield and quality of vegetables. [0003] At present, the multiplantation index of cruciferous vegetables is very high, frequent use of pesticides, especially the frequent use of single pesticides, makes the rapid growth of pest resistance. For a long time, Plutella xylostella has been controlled by abamectin and its compound as the main agent. Frequent and relatively ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): A01N63/00A01N51/00A01N43/90A01P7/04
CPCA01N43/90A01N51/00A01N63/00A01N2300/00
Inventor 李海旭陈洪新唱子斌毛伟成王强
Owner 邯郸市建华植物农药厂
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