Additive of Bacillus thuringiensis Bt20 broad-spectrum insecticide

A technology of Bacillus chrysogenum and pesticides, which is applied in the field of broad-spectrum pesticide auxiliaries, can solve the problems of easy deactivation of active ingredients and poor suspension degree, and achieve good suspension degree, low cost and not easy to deactivate Effect

Inactive Publication Date: 2009-04-15
NORTHEAST AGRICULTURAL UNIVERSITY
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] The purpose of the present invention is to provide an auxiliary agent for the Bacillus thuringiensis Bt20 broad-spectrum insecticide in order to solve the problem that the active ingredient is easily inactivated and the suspension degree is poor under the irradiation of ultraviolet light in the existing Bt20 biological insecticide

Method used

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Examples

Experimental program
Comparison scheme
Effect test

specific Embodiment approach 1

[0007] Specific embodiment one: the auxiliaries of Bacillus thuringiensis Bt20 broad-spectrum insecticide in the present embodiment are by mass fraction ratio by the sodium dodecyl sulfonate of 0.0005~0.0015 parts, the sodium lignin sulfonate of 0.0010~0.0020 parts, 0.0005-0.0015 parts of saponin, 0.0020-0.0030 parts of urea, 0.0020-0.0030 parts of glycerol, 0.0001-0.0010 parts of sodium benzoate and 0.0005-0.0015 parts of sodium carboxymethylcellulose.

specific Embodiment approach 2

[0008] Specific embodiment two: What this embodiment differs from specific embodiment one is that the auxiliaries of Bacillus thuringiensis Bt20 broad-spectrum insecticide are composed of 0.0008~0.0012 parts of sodium dodecylsulfonate, 0.0012~0.0018 parts in parts by mass. 0.0008-0.0012 parts of sodium lignosulfonate, 0.0008-0.0012 parts of saponin, 0.0022-0.0028 parts of urea, 0.0022-0.0028 parts of glycerol, 0.0004-0.0008 parts of sodium benzoate and 0.0008-0.0012 parts of carboxymethyl cellulose Sodium composition. Others are the same as in the first embodiment.

specific Embodiment approach 3

[0009] Specific embodiment three: what this embodiment is different from specific embodiment one is that the auxiliary agent of Bacillus thuringiensis Bt20 broad-spectrum insecticide is by the sodium dodecylsulfonate of 0.0010 part, the lignin of 0.0015 part by mass and number ratio Sodium sulfonate, 0.0010 parts of saponin, 0.0025 parts of urea, 0.0025 parts of glycerol, 0.0005 parts of sodium benzoate and 0.0010 parts of sodium carboxymethylcellulose. Others are the same as in the first embodiment.

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PUM

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Abstract

The invention discloses an auxiliary agent for a broad spectrum pesticide of (Bacillus thuringiensis) Bt20, which relates to an auxiliary agent for the broad spectrum pesticide. The auxiliary agent solves the problems of easy deactivation of effective constituents and poor suspension degree existing in the prior Bt20 biopesticide under the irradiation of ultraviolet light. The auxiliary agent for the broad spectrum pesticide of the (Bacillus thuringiensis) Bt20 consists of dodecyl sodium sulfate, sodium lignosulphonate, saponin, urea, propanetriol, sodium benzoate, and sodium carboxymethyl cellulose. The auxiliary agent for the broad spectrum pesticide of the (Bacillus thuringiensis) Bt20 is added into a Bt20 biopesticide; the auxiliary agent has small adding amount and low cost, and ensures that effective constituents of the biopesticide are difficult to deactivate under the irradiation of the ultraviolet light and the lasting period in field is prolonged by more than 40 percent; and the biopesticide has good suspension degree, is difficult to precipitate, and prolongs the time of no precipitation during the placement by more than 10 percent.

Description

technical field [0001] The invention relates to an auxiliary agent of a broad-spectrum insecticide. Background technique [0002] The use of Bacillus thruingiensis (Bt) for biological control is currently an important comprehensive control method in the world. Bacillus thuringiensis strain Bt20 (the preservation number of China Microorganism Culture Collection Center is: CGMCCNO.1710) has high-efficiency insecticidal effect on lepidopteran pests, but the existing Bt20 biopesticides have no active ingredients under ultraviolet light irradiation. It is easy to inactivate and has a relatively short duration in the field; the existing Bt20 biopesticides have poor suspension and are prone to sedimentation, which affects the insecticidal effect and restricts the application and promotion of Bt20 biopesticides. Contents of the invention [0003] The purpose of the present invention is to provide an auxiliary agent for Bacillus thuringiensis Bt20 broad-spectrum insecticide in ord...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): A01N25/22A01N63/00A01P7/00
Inventor 赵奎军韩岚岚王君于洪春刘分健周长梅
Owner NORTHEAST AGRICULTURAL UNIVERSITY
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