Biological pesticide having natural phytotoxin and preparation method thereof

A technology for biological pesticides and seeds is applied in the field of biological pesticides containing natural phytotoxins and their preparation, which can solve the problems of serious public nuisance, environmental pollution, accumulated toxicity, etc., and achieve the effects of low price, simple preparation method, and obvious killing of snails.

Inactive Publication Date: 2011-11-23
王乃利
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The molluscicide sodium pentachlorophenate, which has been widely used in the past, is extremely toxic, pollutes the environment, and has serious public hazards. It has a strong inhibitory effect on the microbial activity and dominant flora in the environmental soil, especially the cumulative toxicity to the human body. disabled

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0023] Take by weighing 1.0 kilograms of Jatropha curcas seeds and 1.0 kilograms of Jatropha curcas leaves (purchased in Yulin Traditional Chinese Medicine Market, Guangxi) respectively, and set aside; 1.0 kilograms of Jatropha curcas seeds are shelled, and the kernels are ground, soaked with 10L of 60% ethanol under room temperature conditions, Filter, concentrate the filtrate in a rotary evaporator to obtain Jatropha curcas seed extract 200g, and reclaim the solvent simultaneously; 1.0 kilograms of Jatropha curcas leaves are pulverized with a pulverizer, soaked with 60% ethanol 10L at room temperature, heated to reflux, filtered, The filtrate is concentrated in a rotary evaporator to obtain 150g of Jatropha curcas leaf extract, and the solvent is recovered simultaneously; 100g of Jatropha curcas seed extract and 40g of Jatropha curcas leaf extract are mixed, 3g sanguinarine is added, and the mixture is uniform to obtain a biological pesticide combination substance, diluted fo...

Embodiment 2

[0025] Take by weighing 1.0 kilograms of Jatropha curcas seeds and 1.0 kilograms of Jatropha curcas leaves (purchased in Yulin Traditional Chinese Medicine Market, Guangxi) respectively, and set aside; 1.0 kilograms of Jatropha curcas seeds are shelled and pulverized, put into an oil press to directly extract oil, and then add 60% ethanol 10L was dissolved, filtered, and the filtrate was concentrated in a rotary evaporator to obtain 220g of Jatropha curcas seed extract, and the solvent was recovered simultaneously; 1.0 kg of Jatropha curcas leaves were pulverized, soaked in 10L of 60% ethanol at room temperature, heated to reflux, and filtered , the filtrate is concentrated in a rotary evaporator to obtain 150g of Jatropha curcas leaf extract, and the solvent is reclaimed simultaneously; Get 100g of Jatropha curcas seed extract and 20g of Jatropha curcas leaf extract and mix, add 1.5g sanguinarine, mix uniformly to obtain biological Pesticides, diluted with water for later use....

Embodiment 3

[0027]Take by weighing 1.0 kilograms of Jatropha curcas seeds and 1.0 kilograms of Jatropha curcas leaves (purchased in Yulin Traditional Chinese Medicine Market, Guangxi) respectively, and set aside; 1.0 kilograms of Jatropha curcas seeds are shelled, and the kernels are ground, soaked with 10L of 60% ethanol under room temperature conditions, Filter, concentrate the filtrate in a rotary evaporator to obtain Jatropha curcas seed extract 200g, and reclaim the solvent simultaneously; 1.0 kilograms of Jatropha curcas leaves are pulverized with a pulverizer, soaked with 60% ethanol 10L at room temperature, heated to reflux, filtered, The filtrate is concentrated in a rotary evaporator to obtain 150g of Jatropha curcas leaf extract, and the solvent is reclaimed simultaneously; Get 100g of Jatropha curcas seed extract and 50g of Jatropha curcas leaf extract and mix, add 7.5g sanguinarine, mix uniformly, obtain biopesticide The composition is ready for use after dilution.

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PUM

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Abstract

The invention provides a biological pesticide having natural phytotoxin and a preparation method thereof. The biological pesticide consists of barbadosnut seed extract, barbadosnut leaf extract and sanguinarine, wherein the barbadosnut seed extract is 50 to 75 percent ethanol solution extract and the barbadosnut leaf extract is 50 to 75 percent ethanol solution extract. The formula of the biological pesticide is simple and the preparation method is simple. When the pesticide is used for killing pesticides in crops, the pest killing effect is high. Meanwhile, the pesticide is also a new plant molluscicide with remarkable molluscacidal effect, and the pesticide causes little environment pollution and can create high economic and social benefit.

Description

technical field [0001] The invention relates to the field of biopesticides, in particular to a biopesticide containing natural plant toxins and a preparation method thereof. Background technique [0002] Due to the inherent shortcomings of chemical pesticides and long-term unreasonable abuse by people, serious 3R problems have been caused, namely: resistance, resurgence and residue, and at the same time destroyed the ecology of nature. balance. Therefore, people turn their research goals to extract insecticidal active ingredients from plants and develop botanical insecticides. Because biopesticides are derived from natural products, they are easy to degrade, have a short residual effect period, and pests are not easy to develop resistance, so they have broad market prospects. In recent years, the use and development of biopesticides has been led by Japan, Europe and the United States to the world, and has become an international research hotspot, especially the biopesticid...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): A01N65/18A01N43/90A01P7/04A01P9/00
CPCY02A50/30
Inventor 王乃利
Owner 王乃利
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