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A kind of botanical pesticide for preventing and treating tobacco bacterial wilt and its preparation method

A plant-derived pesticide and a technology for tobacco bacterial wilt, which is applied in the field of plant-derived pesticides for preventing and controlling tobacco bacterial wilt and the field of preparation thereof, and can solve problems such as unsatisfactory control effects, economic losses in tobacco production, and the like

Inactive Publication Date: 2018-11-02
昆明百事德生物化学科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] The object of the present invention is to provide a kind of botanical pesticide for preventing and treating tobacco bacterial wilt and preparation method thereof, aiming at solving the problem that currently agricultural (sulfuric acid) streptomycin is used to prevent and treat tobacco bacterial wilt, and the control effect is not ideal. Problems that cause major economic losses to tobacco production

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  • A kind of botanical pesticide for preventing and treating tobacco bacterial wilt and its preparation method
  • A kind of botanical pesticide for preventing and treating tobacco bacterial wilt and its preparation method

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preparation example Construction

[0024] Such as figure 1 As shown, another object of the present invention is to provide a kind of preparation method of the botanical pesticide of preventing and treating tobacco bacterial wilt, the preparation method of the botanical pesticide of preventing and treating tobacco bacterial wilt comprises the following steps:

[0025] Step S101, adding water, solubilizer, and emulsifier into the reaction kettle for mixing, and stirring for more than 30 minutes;

[0026] Step S102, adding berberine and preservative, and cutting in a high-speed shearing machine for 45-60 minutes.

[0027] Another object of the present invention is to provide an aqueous emulsion, a microemulsion, and an aqueous formulation of a botanical pesticide for preventing and treating tobacco bacterial wilt prepared by the method for preparing the botanical pesticide for preventing and treating tobacco bacterial wilt.

Embodiment 1

[0042] The formula of the botanical pesticide for preventing and treating tobacco bacterial wilt is:

[0043] 1% berberine + 1% polyacrylic acid resin II + 2% sodium lauryl sulfate + 6% fatty acid polyoxyethylene ester phosphate + water to make up 100%.

[0044] It is formulated as an aqueous preparation with an active ingredient berberine content of 1%.

[0045] Dilute the water agent 1000 times, and irrigate the roots or spray the base of the rhizome of the tobacco plant 7-10 days after the tobacco is transplanted, and use the medicine once every 7-10 days, and need to use the medicine continuously for 3-4 times. The relative control efficiency of blight is between 80%-90%.

[0046] 1% berberine and 72% agricultural streptomycin WP on the plot control test of tobacco bacterial wilt:

[0047] The plot test was carried out in Lincang's severely diseased fields in previous years. 15 plots were arranged, and 100 plants of Yunyan 87 varieties were planted in each plot. The toba...

Embodiment 2

[0057] The formula of the botanical pesticide for preventing and treating tobacco bacterial wilt is:

[0058] 1% berberine hydrochloride + 1% polyacrylic acid resin II + 3% calcium dodecyl sulfonate + 5% fatty alcohol polyoxyethylene ether + water to make up 100%, and the active ingredient berberine hydrochloride content is 1%. water agent.

[0059] Dilute the water agent 1000 times, and irrigate the roots or spray the base of the rhizome of the tobacco plant 7-10 days after the tobacco is transplanted, and use the medicine once every 7-10 days, and need to use the medicine continuously for 3-4 times. The relative control efficiency of blight is between 80%-90%.

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Abstract

The invention discloses a botanical pesticide capable of controlling tobacco bacterial wilt and a preparation method of the botanical pesticide. The botanical pesticide comprises main raw materials as follows: 1%-10% of berberine, 1%-10% of a solubilizer, 5%-15% of pesticide adjuvants and 0.1%-1% of a preservative, wherein the mole ratio of the solubilizer to berberine is 1:1-10. During use, the botanical pesticide after 800-2,000 times dilution is used for irrigating roots or being sprayed to base rhizome parts of tobacco 7-10 days after tobacco transplanting, is used once every 7-10 days and required to be continuously used 3-4 times. The preparation method is simple; the effective ingredient berberine or berberine hydrochloride is obtained through chemical synthesis or through extraction and purification from a traditional Chinese medicine and contains no other plant extraction ingredients; the content of the main medicinal ingredient berberine or berberine hydrochloride is increased by the solubilizer, the antibacterial spectrum is wide, the control effect on plant bacterial diseases such as the tobacco bacterial wilt and the like is better than that of agricultural streptomycin, pesticide resistance cannot be produced easily, and the botanical pesticide contains no harmful chemical pesticide ingredients.

Description

technical field [0001] The invention belongs to biological pesticide technology, and in particular relates to a botanical pesticide for preventing and treating tobacco bacterial wilt and a preparation method thereof. Background technique [0002] Bacterial disease, which is one of the main diseases of tobacco in tropical and subtropical regions, currently occurs widely in the Yangtze River Basin and south of China, including Guangdong, Fujian, Taiwan, Hunan, Jiangxi, eastern Guangxi, southern Anhui, Some tobacco-smoking areas in Sichuan and Guizhou have caused serious damage, and outbreaks often occur in individual years, causing devastating losses. In recent years, the damage of tobacco bacterial wilt has increased rapidly. Since 2002, the incidence rate of some plots in the dry tobacco areas of southern Yunnan Province has reached more than 80%. In severe cases, the whole field of tobacco can die, often causing major economic losses to tobacco production. . Therefore, re...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): A01N43/90A01P1/00A01P3/00
CPCA01N43/90
Inventor 赵雁何永宏张明洪许中怀赵现军
Owner 昆明百事德生物化学科技有限公司
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