Special plant source insecticide for rice and preparation method for special plant source insecticide for rice

A plant-derived insecticide, insecticide technology, applied in the direction of botanical equipment and methods, insecticides, plant growth regulators, etc., can solve the problems of polluted environment, finished product residue, large amount of waste residue, etc., and achieve economic effects Obvious, fast production, simple operation effect

Inactive Publication Date: 2015-11-25
黑龙江东北亚林产品有限公司
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

In the production process, the amount of pesticide waste residue is extremely large, and it is difficult to dispose of the production waste residue, and it is difficult to recycle the chemical agent. Some chemical agents are left in the finished product, which pollutes the environment. The technology of the index is difficult to achieve factory mass production

Method used

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  • Special plant source insecticide for rice and preparation method for special plant source insecticide for rice

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Experimental program
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Effect test

Embodiment 2

[0011] Embodiment 2, the synthetic method of further preventive insecticide is: get masterbatch for stand-by, get the dry soil after sieving for use, synthesize the masterbatch for use and dry soil after sieving for use, stir Evenly constitutes a preventive pesticide. The ratio of the masterbatch to the sieved dry soil is 1:2-3. When applying, use 5 kg of masterbatch per mu and 10-15 kg of sieved dry soil Stir evenly and sprinkle into the field. The preventive insecticide can effectively prevent rice stem borer, and the killing rate of overwintering larvae is higher than 98%.

Embodiment 3

[0012] Embodiment 3, the synthetic method of further described emergency type insecticide is: send described masterbatch to tertiary pulverization workshop, after ball mill pulverizes to particle diameter ≤ 150nm, add ethanol according to material-liquid ratio 1:2 , mix well, pack, store in the indwelling room, leave still at room temperature, shading, and airtight for 16 hours, and then get the finished product of emergency insecticide, which is transferred to the finished product storage. The finished product storage is 25 ℃ constant temperature, airtight, shading , the concentration of the ethanol is 80%. When applying, the application rate of the finished product per mu is 2 kg, mixed with water at 2:45 and shaken to form a suspension solution, which can be sprayed on the insect-infested parts.

Embodiment 4

[0013] Embodiment 4, the mechanism of described emergency insecticide is the mechanism of contact stomach poisoning, the described suspension solution is well combined with the whole plant of rice, and has amplifying effect to worm body contact and stomach poisoning, adding ethanol can promote The free state total alkali dissolves, and at the same time has a fumigation effect on the insect body, and can also break the surface protective layer of the insect body,

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Abstract

The invention relates to a special plant source insecticide for rice and a preparation method for the special plant source insecticide for rice. The preparation method for the special plant source insecticide for rice comprises a preparation process of master batch and a preventive insecticide and an emergent insecticide, a synthetic method for the preventive insecticide and a synthetic method for the emergent insecticide. By virtue of alkalization of raw materials and three-stage crushing, an alkaloid pure product is no longer deliberately extracted. According to the technical scheme, zero emission on the whole course is realized by virtue of simple and cheap treatment equipment without any waste residue discharge and any exhaust gas and wastewater, so that the preparation method is environmental-friendly and obvious in economical benefit. The raw materials of the plant source insecticide are natural plants, and the effective components of the plant source insecticide are natural substances, have a smooth degradation path in nature and are not enriched and are free of residues; the insecticide prepared by taking veratrum nigrum as the raw material has the advantages of being strong in selectivity and low in toxicity to human, livestock and enemies. The technical scheme provided by the invention is of universality, and a fresh veratrum nigrum product, a fresh euphorbia fischeriana product and a fresh artemisia capillaris product can be used for implementing the insecticide according to the technical scheme provided by the invention.

Description

technical field [0001] The invention relates to the technical field of crop insecticides, in particular to a plant-derived insecticide dedicated to rice and a preparation method. Background technique [0002] The existing botanical pesticide production methods at home and abroad generally adopt water extraction method, ethanol extraction method, percolation method, CO2 entrainer supercritical extraction method, centrifugal separation method, etc., but the processing direction is all through various methods. Measures are to extract the total biological alkaloids to the greatest extent, and then add solvent quantitatively to make a finished pesticide that can be sprayed. In the production process, the amount of pesticide waste residue is extremely large, and it is difficult to dispose of the production waste residue, and it is difficult to recycle the chemical agent. Some chemical agents are left in the finished product, which pollutes the environment. The process of the inde...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): A01N65/42A01N65/12A01N65/10A01N65/18A01P7/04
Inventor 马金友刘东王振亮
Owner 黑龙江东北亚林产品有限公司
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