High-efficient low-toxicity compound botanical pesticide and preparation method thereof

A plant pesticide, high-efficiency and low-toxicity technology, applied in the field of pesticides, can solve the problems of limited technology and experimental means, restricted promotion and use, and poor quick-acting properties, and achieve the effects of improving drug efficacy, not easy to produce resistance, and fast onset of action.

Inactive Publication Date: 2010-12-22
NINGXIA UNIVERSITY
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] In recent years, although some good botanical pesticides have been developed and produced in my country, the progress has been slow due to limited technology and experimental means.
The effect of these pesticides on crop diseases and insect pests is slow, and the quick effect is not strong, which limits their popularization and use

Method used

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  • High-efficient low-toxicity compound botanical pesticide and preparation method thereof
  • High-efficient low-toxicity compound botanical pesticide and preparation method thereof
  • High-efficient low-toxicity compound botanical pesticide and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment approach 1

[0016] 1. Extraction of active ingredients: crush the wild watermelon seedlings and Niupixiao into 20 meshes, then take 70 grams of wild watermelon seedling powder and 10 grams of Niupixiao powder and mix evenly, then add 640 mL of ethanol with a volume concentration of 95%. Soak for 24 hours, then use ultrasonic extraction, and collect the filtrate after filtration.

[0017] 2. Concentration: Concentrate the above filtrate into extract. The concentration method adopts a conventional method.

[0018] 3. Preparation of plant pesticides: Take 10g of the extract, add 30mL of ethanol with a volume concentration of 95% as a solvent, 30mL of fulvic acid as a cosolvent, and 20mL of Tween-80 as an emulsifier. After stirring evenly, add water to make up to 100mL , to obtain 100 mL of compound plant pesticide product.

Embodiment approach 2

[0020] 1. Extraction of active ingredients: crush the wild watermelon seedlings and Niupixiao into 30 meshes, then take 80 grams of wild watermelon seedling powder and 40 grams of Niupixiao powder and mix them evenly, then add 800 mL of ethanol with a volume concentration of 95%. Soak for 36 hours, then use ultrasonic extraction, and collect the filtrate after filtration.

[0021] 2. Concentration: Concentrate the above filtrate into extract. The concentration method adopts a conventional method.

[0022] 3. Preparation of plant pesticides: Take 20g of the extract, add 30mL of ethanol with a volume concentration of 95% as a solvent, 30mL of fulvic acid as a cosolvent, and 10mL of Tween-80 as an emulsifier. After stirring evenly, add water to dilute to 100 mL to obtain 100 mL of compound plant pesticide product.

Embodiment approach 3

[0024] 1. Extraction of active ingredients: crush the wild watermelon seedlings and Niupixiao into 40 meshes, then take 50 grams of wild watermelon seedling powder and 50 grams of Niupixiao powder and mix them evenly, add 800 mL of ethanol with a volume concentration of 95%, and put them under normal temperature Soak for 30 hours, then use ultrasonic extraction, and collect the filtrate after filtration.

[0025] 2. Concentration: Concentrate the above filtrate into extract. The concentration method adopts a conventional method.

[0026] 3. Preparation of plant pesticides: Take 30g of extract, add 40mL of ethanol with a volume concentration of 95% as solvent, 10mL of fulvic acid as cosolvent, and 10mL of Tween-80 as emulsifier. After stirring evenly, add water to dilute to 100mL to obtain 100mL of compound plant pesticide product.

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Abstract

The invention relates to a pesticide, in particular to a high-efficient low-toxicity compound botanical pesticide and a preparation method thereof, and the compound botanical pesticide comprises a botanical pesticide consisting of 1-7 parts of hibiscus trionum and 1 part of radix cynanchi auriculati, a solvent, a cosolvent, an emulsifier and an appropriate amount of water. The preparation process of the method for preparing the high-efficient low-toxicity compound botanical pesticide comprises extraction of active ingredients, concentration and preparation of the botanical pesticide. As raw materials of the botanical pesticide are derived from natural plants, the botanical pesticide is safe for people and animals and difficult to lead diseases and pests to produce the drug resistance, thereby being highly valued nationwide and being the safety pesticide with low toxicity and low residue. The hibiscus trionum and the radix cynanchi auriculati are widely distributed in our country and can effectively prevent and treat the diseases and the pests and have the advantages of developing the botanical pesticides. The compound botanical pesticide can improve the efficacy and the comprehensive prevention and treatment effect of the product, have fast onset of action and long lasting period and be difficult to produce the resistance during the using process by compounding the hibiscus trionum with the radix cynanchi auriculati and relying on the synergy between the active ingredients.

Description

Technical field [0001] The invention relates to a pesticide, in particular to a compound plant pesticide with high efficiency and low toxicity and a preparation method thereof. Background technique [0002] The pesticide market at home and abroad is still dominated by chemical pesticides. Although they can effectively kill pests, chemical pesticides can cause problems such as "3R" and "three harms", seriously pollute the environment and agricultural products, and cause great harm to human health. It is not conducive to the development of green agriculture and the export of agricultural products. Therefore, the use of non-polluting, high-efficiency and low-toxic pollution-free pesticides to replace chemical pesticides will inevitably become the focus of the development of new pesticides. [0003] In recent years, although some better botanical pesticides have been developed and produced in my country, the progress has been slow due to limited technology and experimental mean...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): A01N65/08A01P7/04
Inventor 杨敏丽殷丽娜郝凤霞
Owner NINGXIA UNIVERSITY
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