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Botanical pesticide and its preparation method and use

A botanical pesticide and pesticide technology, which is applied in the fields of botanical equipment and methods, pesticides, plant growth regulators, etc. Long lasting effect, safe and convenient to use, and the effect of drug resistance

Active Publication Date: 2011-10-19
刘荣常 +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

These botanical insecticides have a certain effect on controlling aphids, cabbage caterpillars, tobacco budworms, diamondback moths, red spiders, corn borers, rice planthoppers, tea caterpillars, tea loopers, tea poisonous moths, etc., but there are generally costs. Defects of high, slow action, short duration of action, poor drug stability

Method used

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  • Botanical pesticide and its preparation method and use
  • Botanical pesticide and its preparation method and use
  • Botanical pesticide and its preparation method and use

Examples

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Embodiment Construction

[0029] The solutions of the present invention will be further described below in conjunction with specific examples. It should be understood that the specific examples are only used to illustrate the technical solutions of the present invention, rather than to limit them.

[0030] 1. Preparation of pesticides:

[0031] Steps:

[0032] a, get the raw material according to the ratio listed in Table 1 and pulverize it through a 50-mesh medicine sieve for subsequent use;

[0033] b. Mix 1 part of crushed raw material, 0.5 part of ethanol and 25 parts of water in parts by weight, put it into a cooking tank and heat it to 100°C under normal pressure, then keep it for 1 hour, then add 1% of raw material weight hydrochloric acid to continue leaching for 100 Minutes, the material after leaching is filtered through a 300 mesh sieve machine, the residue is discarded, and the leaching solution is taken for subsequent use;

[0034] c. Put the extract into a concentration tank and concent...

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Abstract

The invention discloses a botanical pesticide and a preparation method thereof. The botanical pesticide contains effective ingredients extracted from tripterygium wilfordii hook f, henbane, aleurites fordii and camptotheca acuminate. The botanical pesticide has the advantages of simple components, convenient use, no pollution and residual on grain crops, low toxicity on human and animals, difficult generation of pesticide resistance, good and broad-spectrum insecticidal effects, good control and killing effects on multiple insects which can damage respectively multiple grain crops, fast generation of effectiveness and long effective duration. The preparation method has the advantages of simple process, easy control on conditions, good yield of active ingredients of raw materials, and goodproduct performances of stable ingredients and easy preservation and use. The invention also provides a use method of the botanical pesticide. The use method comprises diluting the botanical pesticide and spraying the diluted botanical pesticide on a leaf surface. The use method is convenient for implementation.

Description

technical field [0001] The invention relates to insecticides, in particular to a botanical insecticide and its preparation method and application method. Background technique [0002] According to statistics from the Food and Agriculture Organization of the United Nations at the end of the last century, 30-40% of the world's food and economic crops are lost due to pests and diseases, and the economic losses caused by this are as high as 180 billion U.S. dollars every year. In order to deal with pests and diseases, 2-3 million tons of insecticides are produced every year, which are mainly chemical pesticides, causing more and more agricultural, forestry and sanitary pests to develop drug resistance. Taking pests as an example, the number of species has increased from 10 in the 1950s to more than 447 at present. For example, the vegetable pest Plutella xylostella has a resistance multiple of 21,000 times to methyl 1605, 1,049 times to methomyl, and 6,768 times to deltamethrin....

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): A01N65/38A01N65/14A01N65/18A01N65/08A01N43/90A01P7/04A01P7/02
Inventor 刘荣常刘嘉华刘向东郑诚陆学群
Owner 刘荣常
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