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Botanical insecticide for preventing and treating maize weevil and preparation process thereof

A botanical insecticide and corn elephant technology, applied in the direction of insecticides, plant growth regulators, botanical equipment and methods, etc., can solve the problems of poor water solubility, poor dispersion effect, and limited practical use range, etc. Achieve the effects of easy dissolution, stable state, and improved antioxidant capacity

Pending Publication Date: 2021-05-14
LANZHOU UNIVERSITY
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

In addition, the plant is rich in resources and the preparation process is simple, which can protect food safety. However, the product prepared by the process has poor water solubility, poor dispersion effect, and it is difficult to fully exert the drug effect, and it will cause high local drug residual concentration. restricted

Method used

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  • Botanical insecticide for preventing and treating maize weevil and preparation process thereof
  • Botanical insecticide for preventing and treating maize weevil and preparation process thereof

Examples

Experimental program
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Effect test

Embodiment 1

[0031] see figure 1 , a botanical insecticide for controlling corn weevil, comprising the extract of ethyl acetate part of red clover extract as the main ingredient of the botanical insecticide, and the main active ingredients of the botanical insecticide are formononetin and Genistein, the main component of botanical pesticides and the main active ingredients continue to add stable ingredients, soluble ingredients and antioxidant ingredients, the number of parts of the main ingredients of botanical pesticides is 50-60 parts, and the number of parts of the main active ingredients The number of parts is 40-45 parts, the number of parts of stable ingredients is 10-15 parts, the number of parts of easily soluble ingredients is 5-8 parts, and the number of parts of antioxidant ingredients is 2-4 parts;

[0032] The stable components are composed of xanthan gum, CMC, agar, pectin and lecithin as a dispersant, and the mass ratio of xanthan gum, CMC, agar, pectin and lecithin in the ...

Embodiment 2

[0044] A botanical insecticide for preventing and controlling corn weevil, comprising the extract of petroleum ether part whose main component is red clover extract, and the main active ingredients of the botanical insecticide are formononetin and genistein The main ingredients and main active ingredients of botanical insecticides continue to add stable ingredients, soluble ingredients and antioxidant ingredients.

[0045] The present invention provides another technical scheme, a preparation process of a botanical insecticide for preventing and treating corn weevil, comprising the following steps:

[0046] Step 1: Preparation of red clover extract: collect fresh above-ground parts of red clover plants, dry and pulverize them in the shade, add ethanol aqueous solution, ultrasonically or heat and reflux the extract to concentrate under reduced pressure to obtain extract, and obtain red clover extract;

[0047] Step 2: Preparation of the extract from the ethyl acetate part of re...

Embodiment 3

[0054] A botanical insecticide for preventing and controlling corn weevil, comprising an aqueous part extract whose main component is red clover extract, and the main active ingredients of the botanical insecticide are formononetin and genistein The main ingredients and main active ingredients of botanical insecticides continue to add stable ingredients, soluble ingredients and antioxidant ingredients.

[0055] The present invention provides another technical scheme, a preparation process of a botanical insecticide for preventing and treating corn weevil, comprising the following steps:

[0056] Step 1: Preparation of red clover extract: collect fresh above-ground parts of red clover plants, dry and pulverize them in the shade, add ethanol aqueous solution, ultrasonically or heat and reflux the extract to concentrate under reduced pressure to obtain extract, and obtain red clover extract;

[0057] Step 2: Preparation of the extract of the aqueous phase part of red clover: the ...

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Abstract

The invention discloses a botanical insecticide for preventing and treating maize weevil and a preparation process thereof. The botanical insecticide comprises the following main components: one or a combination of more than two of an ethyl acetate part extract, a petroleum ether part extract or a water phase part extract of a red clover extract, main active components of the botanical insecticide are formononetin and genistein, stable components, soluble components and antioxidant components continue to be added into the main components and the main active components of the botanical insecticide, and some dispersing agents, surfactants and antioxidants are added to prepare an agent which is stable in state, easy to dissolve and capable of being directly applied. Meanwhile, all the added substances are edible and can be eaten, so that the oxidation resistance of the agent is improved.

Description

technical field [0001] The invention relates to a botanical insecticide and a preparation process thereof, in particular to a botanical insecticide for controlling corn weevil and a preparation process thereof. Background technique [0002] Food is an important strategic material, which plays an important role in economic development, national security and social stability. Among the newly harvested grains in the world every year, about 15% of the important losses are caused by storage pests. Some developing countries are not able to keep up with the technical level, have little input in manpower and material resources, and early prevention and treatment measures are not timely. my country is the world's most important grain producing and consuming country. In recent years, my country's annual grain output has reached 500 billion kilograms, and the inventory accounts for more than half of the annual output. Stored grain pests not only cause quality loss, but also reduce the...

Claims

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Application Information

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IPC IPC(8): A01N65/20A01N43/16A01N25/22A01N25/30A01P7/04
CPCA01N25/22A01N25/30A01N43/16A01N65/00A01N65/20
Inventor 刘权张茜王成斌
Owner LANZHOU UNIVERSITY
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