Composite pesticide used for preventing and killing Chinese cabbage Pieris rapae L.

A technology of compound pesticides and plant pesticides, applied in the field of agriculture, can solve the problems of unstable decomposition by sunlight, short duration, and no "quick kill" effect on pests, and achieve the effect of less residue, long duration and low toxicity

Inactive Publication Date: 2016-03-02
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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  • Composite pesticide used for preventing and killing Chinese cabbage Pieris rapae L.
  • Composite pesticide used for preventing and killing Chinese cabbage Pieris rapae L.
  • Composite pesticide used for preventing and killing Chinese cabbage Pieris rapae L.

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preparation example Construction

[0045]The present invention also provides a preparation method of the above-mentioned compound pesticide, specifically, placing the 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 introducing the mixture into sand Grind in a mill until the fineness of the material is 1-5 μm; after grinding, mix evenly to form a water suspension.

[0046] The solvent is one or more mixtures of ethyl acetate, cyclohexanone, methyl oleate, ethanol, methanol, acetone, dimethylformamide, n-propanol, isopropanol, ethyl acetate and water.

[0047] 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 several.

[0...

Embodiment 1

[0052] Embodiment 1 Plant Pesticide Extraction Components

[0053] 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

[0054] The preparation of embodiment 2 compound pesticides

[0055] Get 1g cypermethrin and the plant pesticide extract component powder that 10g embodiment 1 prepares, mix homogeneously, obtain active component, get this active component 3g, and surfactant styrene ethylphenol polyoxyethylene ether 8g (Handan City New Diya Chemical Co., Ltd. Provided by the responsible company), 5g of synergist lauryl azone and 10g of organic solvent cyclohexanone are placed in the reaction kettle, add water to 100g, mix well, and then introduce the mixture into a sand mill and grind until the material fineness is 1-5μm ; Mix evenly after milling and serve as water suspension.

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PUM

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Abstract

The invention provides a novel composite pesticide, and more specifically relates to a composite pesticide used for preventing and killing Chinese cabbage Pieris rapae L. The composite pesticide comprises an active component, a surfactant, a synergist, a solvent, and water. The composite pesticide possesses advantages in preventing and killing Chinese cabbage Pieris rapae L. via adding of chemical pesticide ingredients and plant extracts; toxicity is low; residual amount is low; killing time of Chinese cabbage Pieris rapae L. is short; effect is excellent; and killing effect lasts for a long period of time.

Description

technical field [0001] The invention relates to the technical field of agriculture, in particular to a compound 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 long time...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): A01N65/44A01N25/30A01P7/04A01N53/08
Inventor 不公告发明人
Owner QINGDAO HUAREN TECH INCUBATOR
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