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Insecticide for corn seedlings

A technology for pesticides and seedlings, which is applied in the field of pesticides for corn seedlings, can solve the problems of low extraction rate and the effect of pesticides needs to be improved, and achieves the advantages of improving insecticidal activity, not easy to produce antibodies, and good market prospects. Effect

Inactive Publication Date: 2018-07-24
金华市胤宏农业科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the extraction rate of such active ingredients is not high, and the effect of the prepared insecticide needs to be improved.

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0013] The invention discloses an insecticide for corn seedlings, the main components of which are extracts of bitter bark vines, extracts of Scutellaria osmanthus and pyrethroids.

[0014] The insecticide specifically includes the following components and their parts by weight: 5 parts of bitter bark vine extract, 15 parts of Sperantosporum extract, 4.6 parts of pyrethroids, 0.2 parts of xanthan gum, 2.6 parts of Tween-20, and 52 parts of water , the components of the above insecticides can play a mutually beneficial role, which is a broad-spectrum, high-efficiency, difficult to produce antibodies, low toxicity, easy to degrade, no residual insecticides and no drug resistance. Environmentally friendly insecticides can kill Corn seedling pests promote the growth of corn seedlings and have a good market prospect; the insecticide can act on the digestive system of insects, and there are receptors on the cell membrane of the midgut wall, and the three-dimensional conformation of t...

Embodiment 2

[0018] The invention discloses an insecticide for corn seedlings, the main components of which are extracts of bitter bark vines, extracts of Scutellaria osmanthus and pyrethroids.

[0019] The insecticide specifically includes the following components and their parts by weight: 3 parts of bitter bark vine extract, 22 parts of Sperantosporum extract, 3.5 parts of pyrethroids, 1.3 parts of xanthan gum, 0.6 parts of Tween-20, 64 parts of water .

[0020] The main component of the above-mentioned Phyllostachys chinensis extract is phalanthin V, and its preparation method is: adding ethyl acetate in the root bark powder of Pharyllis chondroe Ultrasonic extraction at 80kHz for 50min at ℃, filtered, and the filtrate was concentrated by distillation, adsorbed with 100 mesh silica gel and separated by 300 mesh silica gel column chromatography, followed by petroleum ether and petroleum ether with a volume ratio of 1:0.1 Gradient elution with acetone mixed solution, collect each fracti...

Embodiment 3

[0023] An insecticide for corn seedlings, which specifically includes the following components and their parts by weight: 4 parts of bitter bark vine extract, 18 parts of Sperantosporum extract, 1.0 part of pyrethroid, 0.8 part of xanthan gum, Tween- 20 1.5 parts, 58 parts of water.

[0024] The main component of the above-mentioned Phyllostachys chinensis extract is phalanthin V, and its preparation method is: adding ethyl acetate in the root bark powder of Pharyllis phagocytidae at a temperature of 30 Under the condition of 100kHz and ultrasonic frequency of 100kHz, ultrasonically extract for 40min, filter, the filtrate is concentrated by distillation, adsorbed by 150 mesh silica gel, and then separated by 250 mesh silica gel column chromatography, followed by petroleum ether and petroleum ether with a volume ratio of 1:0.5 Gradient elution with acetone mixture, collect each fraction, detect by thin layer chromatography, combine the fractions with similar Rf values, and then...

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Abstract

The invention discloses an insecticide for corn seedlings. The insecticide takes celastrus angulatus extract, garden balsam stem extract and pyrethroid as main components and is specifically preparedfrom the following components in parts by weight: 3-5 parts of celastrus angulatus extract, 15-22 parts of garden balsam stem extract, 3.5-4.6 parts of pyrethroid, 0.2-1.3 parts of xanthan gum, 0.6-2.6 parts of Tween-20 and 52-64 parts of water. The insecticide disclosed by the invention has the beneficial effects that all components can exert mutually synergistic effects; the insecticide is broadin spectrum, high in efficiency, not liable to generate resistance to drugs, low in toxicity, easy to degrade and free of residues; the insecticide for corn seedlings has better mobility in soil layers and has higher content of haedoxan A.

Description

technical field [0001] The invention relates to the technical field of insecticides, in particular to an insecticide for corn seedlings. Background technique [0002] Corn (pull down scientific name: Zea mays L ), belonging to the Poaceae Maize genus, is an annual herb. Alias: Yushutai, Chunzi, Baogu, Baomi, etc. Corn was first discovered and cultivated in the Americas, first in Mexico or other countries in Central America. Since the Europeans discovered the New World of America, they transported the plants back to Europe. As the world's voyage industry continued to spread all over the world, the crop of corn was gradually transported to various countries in the world, and it was regarded as the main ration in many countries. one of the crops. Some countries have recently regarded corn as a "national treasure". Corn is one of the crops grown in most countries, and it is grown in large quantities in countries from south to north on the earth. Corn is planted in a wide r...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): A01N65/14A01N65/18A01N53/08A01N43/12A01N43/90A01P7/04
CPCA01N43/12A01N43/90A01N53/00A01N65/00A01N65/14A01N65/18
Inventor 刘洋
Owner 金华市胤宏农业科技有限公司
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