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Plant extracted pesticide preventing and controlling Chinese cabbage caterpillar

A plant extraction and pesticide technology, applied in the agricultural field, can solve the problems of unstable decomposition of sunlight, no "quick killing" effect of pests, short duration of validity, etc., and achieve the effects of less residue, less toxicity and longer duration.

Inactive Publication Date: 2016-04-20
QINGDAO HUAREN TECH INCUBATOR
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] Plant pesticides have the advantages of low toxicity to humans, livestock, plants, etc., no residue, easy degradation, wide insecticidal spectrum and good effect, but some also have no "quick killing" effect on pests and are unstable to sunlight. And the disadvantages of faster decomposition and shorter duration

Method used

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  • Plant extracted pesticide preventing and controlling Chinese cabbage caterpillar
  • Plant extracted pesticide preventing and controlling Chinese cabbage caterpillar
  • Plant extracted pesticide preventing and controlling Chinese cabbage caterpillar

Examples

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preparation example Construction

[0037] The present invention also provides a preparation method of the above-mentioned compound pesticide, specifically, placing the plant extract active ingredient, surfactant, synergist and organic solvent in the reaction kettle according to the above ratio, adding water to 100% and mixing evenly, and then mixing the mixture Introduce into a sand mill and grind until the material fineness is 1-5 μm; after grinding, mix evenly to form a water suspension.

[0038] The solvent is one or more mixtures of ethyl acetate, cyclohexanone, methyl oleate, ethanol, methanol, acetone, dimethylformamide, n-propanol, isopropanol, ethyl acetate and water.

[0039] The surfactants are alkylbenzene sulfonates, alkylphenol polyoxyethylene ethers, styrylphenol polyoxyethylene ethers, styrylphenol polyoxyethylene ethers polyoxypropylene ethers and the like Substances, adducts of castor oil and ethylene oxide, aralkylphenol polyoxyethylene ether formaldehyde condensation products or a mixture of ...

Embodiment 1

[0043] Embodiment 1 plant extracts active ingredient

[0044] Wash 25g of Chuangu root, 20g of chicken crop leaves, 15g of cnidium, 20g of Datura root, 15g of Artemisia annua, 25g of Sophora flavescens, 20g of Zanthoxylum bungeanum, 10g of cocklebur, 10g of fritillaria and 10g of Andrographis paniculata, respectively, crush and mix Put them together, soak them in water and put them into the extraction container to extract twice, add 1.5kg of water to decoct for 2 hours for the first time, add 1kg of water for 2 hours to decoct for the second time, combine the two decoctions, filter to obtain the filtrate; heat and concentrate Put it into a paste, put it in an oven at 80°C, dry it, cool it, and crush it into powder.

Embodiment 2

[0045] The preparation of embodiment 2 compound plant extraction pesticide

[0046] Get the plant extraction active ingredient 3g that embodiment 1 prepares, and surfactant phenylethylphenol polyoxyethylene ether 8g (Handan City Xin Diya Chemical Co., Ltd. provides), synergist laurocapram 5g and organic solvent cyclohexane Put 10g of ketone in a reaction kettle, add water to 100g, mix evenly, then introduce the mixture into a sand mill and grind until the material fineness is 1-5μm; after grinding, mix evenly to form a water suspension.

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PUM

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Abstract

The invention provides a novel plant extracted pesticide, of which raw materials comprise plant extracted active components, surfactant, synergist, solvent and water. The pesticide has the advantages of small toxicity, small residue, short killing time for Chinese cabbage caterpillar, good effect, and long lasting duration.

Description

technical field [0001] The invention relates to the field of agricultural technology, in particular to a plant-extracted pesticide for preventing and treating cabbage caterpillars. Background technique [0002] Pierisrapae L. seriously damages cruciferous vegetables, especially cabbage and cauliflower containing mustard oil. The optimum growth temperature of cabbage caterpillar is 20-25℃, and the relative humidity is about 76%, which poses a great threat to the production of cruciferous vegetables. [0003] At present, there are many kinds of medicaments for controlling cabbage caterpillar, but chemical pesticides are still the main ones. Continuous application of chemical pesticides to prevent and control cabbage caterpillars for many years has resulted in enhanced drug resistance of cabbage cabbage caterpillars, resulting in difficulties in control, and at the same time increased application of pesticides has also brought environmental pollution problems. [0004] For a ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): A01N65/40A01P7/04
CPCA01N65/00A01N65/40
Inventor 赵玉妹
Owner QINGDAO HUAREN TECH INCUBATOR
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