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A kind of botanical compound insecticide and its application

An insecticide, plant-derived technology, applied in the field of plant-derived pesticides, can solve the problems of drug resistance of target pests, high content of aromatic compounds, unsatisfactory insecticidal activity, etc., and achieves reduced field application costs and environmental compatibility. Good sex and remarkable medicinal effect

Inactive Publication Date: 2018-01-05
ZHEJIANG UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

There are many problems in the existing pesticide preparations that only use camptothecin or bamboo tar as active ingredients. For example, CPT is expensive, up to about 30,000 yuan per kilogram, and the active substance is easy to decompose when exposed to light, so it needs to be strictly protected from light. Insufficient light stability for storage and field use, etc.; bamboo tar has extremely complex components, high content of aromatic compounds, and the emulsifiable concentrate prepared is more toxic, and the reported water preparation is very large due to the amount of bamboo tar, and excessive dosage is easy to causing pesticide residue problems
In addition, the insecticidal activity of the two single agents is not ideal, and long-term application may lead to resistance in target pests

Method used

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  • A kind of botanical compound insecticide and its application
  • A kind of botanical compound insecticide and its application
  • A kind of botanical compound insecticide and its application

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0041] Add 10.2 kg of water and 0.025 kg of camptothecin to mixer A, stir and heat the suspension to 50°C, then slowly add 0.0525 kg of sodium hydroxide, stir until all the substances are uniformly dissolved, and prepare a single agent I. Add 4.046 kg bamboo tar and 0.6808 kg sodium hydroxide into mixer B, and keep stirring until the black viscous bamboo tar becomes brown and slightly thin semi-fluid, and the temperature of the reactant changes from blanching to room temperature, then add 10.27 kg of water, stir and mix evenly to prepare a single agent II. Then mix the single agent I and the single agent II according to the volume ratio of 1.2:1 to make a mixture, and then add 0.1% sodium lignosulfonate, 0.1% silicone, 0.025% ethylene glycol, 0.025% by weight of the mixture Glycerol, 0.025% sodium polyacrylate, 0.025% table salt, fully stir and mix well to form a compound.

Embodiment 2

[0043] Add 8.98 kg of water and 0.076 kg of camptothecin to mixer A, stir and heat the suspension to 52°C, then slowly add 0.0633 kg of sodium hydroxide, stir until all the substances are uniformly dissolved, and prepare a single agent I. Add 6.321 kg of bamboo tar and 0.8216 kg of sodium hydroxide into the mixer B, keep stirring until the black viscous bamboo tar becomes brown and slightly thin semi-fluid, and the temperature of the reactant is changed from blanching to room temperature, then add Water 9.02 kg, stir and mix evenly to prepare a single agent II. Then, mix the single agent I and the single agent II according to the volume ratio of 1:1.2 to make a mixture, and then add 0.4% silicone, 0.2% glycerol and 0.2% sodium polyacrylate by weight of the mixture, and stir and mix thoroughly Serve evenly as a compound.

Embodiment 3

[0045] Add 9.95 kg of water and 0.05 kg of camptothecin in agitator A, stir and heat the suspension to 53°C, then slowly add 0.0562 kg of sodium hydroxide, stir until all the substances are uniformly dissolved, and prepare a single agent I. Add 4.5 kg of bamboo tar and 0.729 kg of sodium hydroxide into mixer B, and keep stirring until the black viscous bamboo tar becomes brown and slightly thin semi-fluid, and when the temperature of the reactant turns from blanching to room temperature, add water 10.0 kg, stir and mix evenly to form a single agent II. Then, single agent I and single agent II are mixed according to a volume ratio of 1:1 to make a mixture, and then add 0.3% sodium lignosulfonate, 0.15% ethylene glycol, and 0.05% salt of the mixture by weight, and stir thoroughly Mix well and serve as a compound.

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Abstract

A botanical compound insecticide and its application belong to the technical field of botanical pesticides. The following method is used to prepare: 1) Weigh 0.05-0.45% camptothecin, 12-31% bamboo tar, 2.1-5.2% sodium hydroxide, and 63-85% water by weight; mix camptothecin with sodium hydroxide and water Mix according to the weight ratio of 1:0.84-2.08:118-404, stir at 50-55°C to form a single agent I; 2) Add the remaining sodium hydroxide to the bamboo tar, and when the reaction reaches room temperature, add the remaining water, stir well to make single dose II; 3) mix single dose I and single dose II, and then add pesticide adjuvants to form the final product. The above-mentioned plant-derived compound insecticide and its application have ideal contact killing effects on rice planthoppers, rice stem borers, cotton aphids, bean aphids, cabbage aphids and other piercing and chewing mouthpart pests, and have a good effect on crops. The effect of promoting growth and supplementing trace elements; and the production cost is low, and the application is convenient.

Description

Technical field [0001] The invention belongs to the technical field of plant-derived pesticides, and is specifically a plant-derived compound pesticide and its use. Background technique [0002] Camptothecin (CPT) is derived from the blue fruit family plant Camptothecin Camptotheca acuminata The light yellow needle-like crystals extracted from the fruits and leaves of Decne are neutral alkaloids, without obvious alkalinity, insoluble in water, and exhibiting strong blue fluorescence under ultraviolet light. It is clinically found that CPT can block the synthesis of topoisomerase I. Therefore, it has been used as an anti-cancer drug for the treatment of malignant tumors, psoriasis, acute and chronic leukemia, and liver and spleen caused by schistosomiasis. Swelling, etc., but because camptothecin kills cancer cells while also injuring normal human cells, its application in clinical medicine is greatly restricted. DeMilo & Borkovec found in a study in 1974 that CPT has a sterile e...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): A01N61/00A01P7/04A01N43/90
Inventor 童森淼冯明光
Owner ZHEJIANG UNIV