Application of ginkgo as plant pesticide
The technology of a plant insecticide and ginkgo extract is applied in the application field of ginkgo as a plant insecticide, and can solve problems such as undiscovered
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Embodiment 1
[0106] Embodiment 1: according to the following proportioning, through certain processing, emulsifiable concentrate is made:
[0107] Ginkgo biloba extract 10~60%
[0108] Solvent 30~75%
[0109] Emulsifier 5~25%
[0110] Other additives such as hyperosmotic agents, etc. 5-10%
[0111] The solvent in the emulsifiable concentrate is selected from one or more of xylene, methanol, ethanol, ethyl acetate, etc., and the emulsifier is selected from octylphenol polyvinyl ether, styrene phenol polyoxyethylene polyoxypropylene ether, dodecylbenzene One or more of calcium sulfonate, stearyl polyoxyethylene ether phosphate, nonylphenol polyoxyethylene ether, etc.
[0112] The production method of emulsifiable oil: first, crush ginkgo biloba leaves or outer skin into coarse pulverization of less than 5mm, then extract with different solvents, concentrate the extract to a certain concentration under reduced pressure, and then mix it with emulsifiers, solvents and other additives, etc. ...
Embodiment 2
[0113] Embodiment 2: according to following proportioning, through certain processing, make water emulsion:
[0114] Ginkgo biloba extract 10~40%
[0115] Water 35~70%
[0116] Solvent 5~25%
[0117] Emulsifier 5~20%
[0118] Co-emulsifier 1~5%
[0119] The solvent in the aqueous emulsion is selected from one or more of xylene, methanol, ethanol, ethyl acetate, etc.; the emulsifier is selected from alkyl polyglycol ether, alkylphenyl polyethylene glycol ether, polyoxyethylene sorbitol, etc. One or more of sugar alcohol anhydride esters, polyoxyethylene fatty acid esters, etc.; co-emulsifiers are alkanols such as butanol, isobutanol, dodecanol-1, stearyl alcohol-1, etc. one or several.
[0120] The manufacturing method of the aqueous emulsion: add ginkgo extract, solvent, emulsifier, and co-emulsifier together in a certain proportion, and stir at a high speed at room temperature.
Embodiment 3
[0121] Embodiment 3: according to following proportioning, through certain processing, make microemulsion:
[0122] Ginkgo biloba extract 10~50%
[0123] Water 40~60%
[0124] Emulsifier 10~25%
[0125] The emulsifier used in the microemulsion is one or more of styrene phenol polyoxyethylene ether, polyethylene styrene phenol ether oleate, nonylphenol polyoxyethylene ether, biphenol polyoxyethylene ether, etc.
[0126] The manufacturing method of the microemulsion: first dissolve the emulsifier in water, add ginkgo extract dropwise therein under stirring, stir at a constant temperature of 40-65° C. for 12 hours, and then cool to room temperature.
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