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Plant-sourced meliaceae soap pesticide and preparation method of same

An insecticide and plant-derived technology, which is applied in the field of insecticide and its preparation, can solve the problems of high cost, restrictions on popularization and application, and delayed effect of plant-derived pesticides, so as to solve the problems of slow drug effect, low cost, and simple production process Effect

Active Publication Date: 2013-08-07
张向东
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Since botanical pesticides are still in the primary development stage, some pharmacological mechanisms are still unclear and the production process is not mature enough, botanical pesticides generally have the problem of "delayed action", which is not compatible with the "speed-seeking" psychology of today's farmers. Most farmers still choose to use highly toxic and high-residue chemical pesticides. In addition, the current high cost of botanical pesticides also restricts their popularization and application

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0017] Take 360 ​​grams of toosendan, 260 grams of camellia oleifera cake, and 380 grams of lacquer, mix and pulverize them, add 2000 grams of water, and extract at a temperature of 60-65° C. for 75 hours. The mixed liquor after leaching is squeezed and filtered by a hydraulic press to obtain a mother liquor, and 0.2% of the weight of the mother liquor is added to the mother liquor. Sodium benzoate, the effect of the sodium benzoate is to prevent the mother liquor from deteriorating. Take 900 grams of mother liquor, add 30 grams of unleaded kerosene and 70 grams of phosphorus zincate, and emulsify in an emulsifier for 20 minutes to obtain the plant source neem soap insecticide.

Embodiment 2

[0018] Embodiment 2: Preparation of degradable polyurethane rigid foam material

[0019] Take 460 grams of toosendan, 360 grams of camellia oleifera cake, and 180 grams of lacquer, mix and pulverize them, add 4000 grams of water, and extract at a temperature of 60-65° C. for 70 hours. The mixed liquor after leaching is squeezed and filtered by a hydraulic press to obtain a mother liquor, and 0.2% of the weight of the mother liquor is added to the mother liquor by sodium benzoate. Take 950 grams of mother liquor, add 10 grams of unleaded kerosene and 40 grams of phosphorus zincate, and emulsify in an emulsifier for 40 minutes to obtain the plant source neem soap insecticide.

Embodiment 3

[0021] Take 400 grams of toosendan, 300 grams of camellia oleifera cake, and 300 grams of lacquer, mix and pulverize them, add 3000 grams of water, and extract at a temperature of 60-65°C for 72 hours. The mixed liquor after leaching is squeezed and filtered through a hydraulic press to obtain a mother liquor, and 8 grams of sodium benzoate are added to the mother liquor. Take 920 grams of mother liquor, add 20 grams of unleaded kerosene and 60 grams of phosphorus zincate, and emulsify in an emulsifier for 30 minutes to obtain the plant source neem soap insecticide.

[0022] Before the plant source neem soap insecticide is put into the warehouse, it needs to carry out sampling inspection and "traction test" of insects receiving the drug to check whether its active ingredients meet the standard. The standard is: toosendanin reaches more than 0.1%, and the pH value is 6-7.5 Between, the appearance color is gray and white. The standard of the "traction test" is: within 30 minute...

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PUM

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Abstract

The invention discloses a plant-sourced meliaceae soap pesticide which is prepared from the following materials in percentage by weight: 36% to 46% of melia toosendan, 26% to 36% of oil-tea cake and 18% to 38% of euphorbia helioscopia. The invention also discloses a preparation method of the plant-sourced meliaceae soap pesticide, which comprises the following steps of: mixing and crushing the melia toosendan, the oil-tea cake and the euphorbia helioscopia, adding hot water into the mixture for extraction, squeezing the extracted liquid mixture through a hydraulic squeezing machine, and filtering the liquid mixture to obtain a mother liquid, adding lead-free kerosene and a catalyst into the mother liquid for emulsification and the like. The invention has the characteristics of high efficiency, no toxin, low cost and the like, and common problems of 'late effect', high cost and the like of a plant-sourced pesticide are solved.

Description

technical field [0001] The invention relates to an insecticide for plants and a preparation method thereof. Background technique [0002] Chemical agents play an important role in the control of crop diseases and insect pests, but the residues of drugs lead to the deterioration of natural ecosystems, which has become a major issue of international concern and urgently to be resolved. In our country, since the 20th century, due to the single use of chemical pesticides, the harmful elements in agricultural products have exceeded the standard, which directly endangers the health and survival of the people. For this reason, the country attaches great importance to and formulated the "Medium and Long-term Science and Technology Development Program Outline" to encourage research and development Environmentally friendly fertilizers and pesticides. Since then, Chinese experts and scholars have successively developed dozens of pollution-free pesticides made from plant sources. Among...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): A01N65/26A01N65/18A01N65/08A01P7/04
CPCY02A50/30
Inventor 张向东
Owner 张向东
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