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Insecticidal synergist

A technology of synergist and pesticide, applied in the field of pesticide synergist, can solve problems such as not being effectively used, and achieve the effects of simple use method, delaying drug resistance and improving pesticide efficacy

Inactive Publication Date: 2009-09-02
INST OF PLANT PROTECTION FAAS
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

Chenopodium ambrosioides L is an annual or perennial herb of the genus Licoria. It is an exotic pest and is now widely distributed in tropical and temperate regions of the world. It invades farmland in many places and becomes an important field weed. not being used effectively

Method used

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Embodiment

[0008] The nepeta essential oil is the nepeta essential oil extracted from Chenopodium ambrosioides L., a plant of the genus Licoria. The extraction method can be steam distillation, organic solvent method or supercritical CO 2 Law.

[0009] The steam distillation method for extracting Nepeta essential oil: cut the collected fresh or shade-dried Nepeta plants into pieces, and steam the water vapor out by soaking and distillation (the volume ratio of Nepeta and water is 1:6) , Distilled under normal pressure for 4 hours, after the steam is cooled by the condenser, the fraction on the water surface is collected through the oil-water separator, added with 2 times of anhydrous sodium sulfate and left to stand for a period of time, after filtering, it becomes the Nepeta essential oil.

[0010] The organic solvent method is as follows: cutting the collected fresh or shade-dried Nepeta plants into pieces, extracting with 3 times the volume of petroleum ether, extracting under normal...

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Abstract

The invention provides an insecticidal synergist, in particular to chenopodium ambrosioides essential oil which is used as the insecticidal synergist. The application method is as follows: the chenopodium ambrosioides essential oil which is 0.1-95 percent of the mass of insecticide is added to the insecticide and evenly mixed with the insecticide for use. The invention has wide raw material sources, simple and convenient extraction method, remarkable synergy, safety and environment protection, simple application method and low cost, remarkably enhances the effect of agricultural chemicals and can reduce the effective use amount of insecticide by 20-70 percent in case of same prevention and control effect, overcomes and delays the insecticide resistance of pests, makes full use of weed, and changes waste into valuable, thereby having remarkable economic benefit and significance of environment protection.

Description

technical field [0001] The invention belongs to the technical field of pesticide synergists, and relates to an insecticide synergist. Background technique [0002] Pesticides are the main method to control pests. However, due to the irrational use of pesticides, pests have developed resistance to many pesticides. For example, diamondback moth has developed resistance to more than 50 kinds of pesticides, including all pesticides that are in use or have been used in the past, even benzoylthioureas, insect growth regulators, and spinosads that were not considered easy to produce resistance in the past. and Bt have also successively developed resistance. The emergence of pest resistance has increased the difficulty of pest control and increased the amount of pesticides used in the field. This not only increases the burden on farmers, but is also the key source of a series of problems such as human and animal poisoning and pesticide residues. At the same time, it also makes many...

Claims

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Application Information

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IPC IPC(8): A01N43/90A01N27/00A01N31/04A01P7/00
Inventor 魏辉占志雄吴玮赵建伟黄玉清
Owner INST OF PLANT PROTECTION FAAS
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