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A kind of preparation method of bacillus thuringiensis microcapsule suspension and the application of the suspension

The technology of Bacillus thuringiensis and microcapsule suspension agent is applied in the field of pesticides, which can solve the problems of shortening the duration of efficacy of Bacillus thuringiensis suspension, reducing the insecticidal effect, inactivation of insecticidal crystal proteins, etc. The effect of reducing decomposition and reducing contact time

Active Publication Date: 2022-01-07
SHANDONG LUKANG BIOLOGICAL PESTICIDE CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] When adopting the Bacillus thuringiensis suspension in the above technical scheme, since the main component of the Bacillus thuringiensis suspension for killing insects is the insecticidal crystal protein, the insecticidal crystal protein is easily inactivated by the influence of ultraviolet rays, so that the drug effect of the Bacillus thuringiensis suspension continues period shortens, resulting in reduced insecticidal efficacy

Method used

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  • A kind of preparation method of bacillus thuringiensis microcapsule suspension and the application of the suspension
  • A kind of preparation method of bacillus thuringiensis microcapsule suspension and the application of the suspension

Examples

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preparation example 1

[0032] Add 20 parts of β-cyclodextrin to 100 parts of water and stir to obtain a wall material mixture.

preparation example 2

[0034] Add 30 parts of β-cyclodextrin to 100 parts of water and stir to prepare wall material mixture.

preparation example 3

[0036] Add 25 parts of β-cyclodextrin to 100 parts of water and stir to obtain a wall material mixture.

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Abstract

The application discloses a preparation method of Bacillus thuringiensis microcapsule suspension and the application of the suspension, belonging to the technical field of pesticides. A preparation method of Bacillus thuringiensis microcapsule suspension comprises the following steps: S1: Take 100-120 weight part of Bacillus thuringiensis fermentation broth, add 1-2 parts by weight of adsorbent to adsorb, filter the water, dry at 35°C-39°C, and prepare the capsule core A; S2: take 6-13 parts by weight of the capsule core A and add it to 4-8 Mix the oil in parts by weight to prepare an oil phase, and add the oil phase to the wall material mixed liquid in an amount of 1:1 by weight to obtain a prefabricated liquid; S3: add 0.4-0.6% of the total mass of the prefabricated liquid Emulsifiers emulsify to obtain finished products. The preparation method realizes the purpose of prolonging the drug effect duration of the Bacillus thuringiensis microcapsule suspension and improving the insecticidal effect; the application also proposes an application of the Bacillus thuringiensis microcapsule suspension, which has a long drug effect duration and insecticidal effect good points.

Description

technical field [0001] The application relates to the technical field of pesticides, more specifically, it relates to a preparation method of Bacillus thuringiensis microcapsule suspension and the application of the suspension. Background technique [0002] Bacillus thuringiensis preparation is the most widely used biopesticide in the world. It has the characteristics of high efficiency and low toxicity, and has made great contributions to the production of green food and the protection of human living environment. [0003] In the related art, a suspension of Bacillus thuringiensis is proposed. Take 100 parts by weight of Bacillus thuringiensis fermentation broth, 6 parts by weight of phosphate, 3 parts by weight of nonylphenol polyoxyethylene ether, 0.2 parts by weight of xanthan gum, 3 parts by weight of ethylene glycol Parts by weight, 0.1 part by weight of silicone defoamer, and 100 parts by weight of deionized water are uniformly mixed, sanded by a sand mill, and then h...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): A01N63/23A01N25/04A01N25/28A01P7/04
CPCA01N63/23A01N25/04A01N25/28
Inventor 靳志刚李卫东马华马月月葛丽娇
Owner SHANDONG LUKANG BIOLOGICAL PESTICIDE CO LTD