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Preparation method of insecticide for preventing and treating pea aphids

A technology of pea aphids and pesticides, which is applied in the field of preparation of pesticides for the control of pea aphids, can solve the problems of pest drug resistance and drug residues, and achieve the effect of inhibiting the spread

Inactive Publication Date: 2020-02-11
LANZHOU UNIVERSITY
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] Existing chemical pesticides are prone to drug residues, and there are deficiencies in the development of drug resistance to pests, etc.

Method used

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  • Preparation method of insecticide for preventing and treating pea aphids

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0020] A preparation method for preventing and treating pea aphids, comprising the following steps:

[0021] Step 1, in parts by weight, take the aboveground part of the drunk horse grass, dry it in the shade, cut it short, crush it, add the granules to 3 times the weight of distilled water, mix well, put it in a refrigerator at 4°C, and refrigerate;

[0022] Step 2, stir once every 10 hours, and reserve after 40 hours;

[0023] Step 3, after stirring the sample evenly, put it into a juice extractor, mix the liquid evenly, and use the juice extractor to fully squeeze out the liquid to obtain the water extract of Drunken Horse Grass.

[0024] In step 1, the particles were added to 4 times the weight of distilled water.

[0025] In step 1, the particle size is about 40 mesh.

[0026] The ratio of pellets to distilled water in step 1 must be 1:4.

[0027] In step 3, use a juicer to fully squeeze out the liquid, and then mix well.

Embodiment 2

[0029] A preparation method for preventing and treating pea aphids, comprising the following steps:

[0030] Step 1, by weight, take the aboveground part of the drunk horse grass, dry it in the shade, cut it short, crush it, add the granules to 4 times the weight of distilled water, mix well, put it in a refrigerator at 4°C, and refrigerate;

[0031] Step 2, stir once every 12 hours and reserve after 48 hours;

[0032] Step 3, after stirring the sample evenly, put it into a juice extractor, use the juice extractor to fully squeeze out the liquid, and then mix the liquid evenly to obtain the water extract of Drunken Horse Grass.

Embodiment 3

[0034] A preparation method for preventing and treating pea aphids, comprising the following steps:

[0035] Step 1, in parts by weight, take the aboveground part of the drunken horse grass, dry it in the shade, cut it short, crush it, add the granules to 5 times the weight of distilled water, mix well, put it in a refrigerator at 4°C, and refrigerate;

[0036] Step 2, stir once every 12 hours and reserve after 48 hours;

[0037] Step 3, after stirring the sample evenly, put it into a juice extractor, mix the liquid evenly, and use the juice extractor to fully squeeze out the liquid to obtain the water extract of Drunken Horse Grass.

[0038] In step 1, the particles were added to 4 times the weight of distilled water.

[0039] In step 1, the particle size is about 40 mesh.

[0040] The ratio of pellets to distilled water in step 1 must be 1:4.

[0041] In step 3, use a juicer to fully squeeze out the liquid, and then mix well.

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Abstract

The invention discloses a preparation method of an insecticide for preventing and treating pea aphids. The preparation method comprises the following steps: drying the overground parts of Achnatheruminebrians in the shade, cutting the overground parts short, pulverizing the cut overground parts, adding distilled water into a sample, carrying out soaking, and performing juicing to obtain an extract liquid. With the insecticide, the effective mortality of red pea aphids can reach 24.24% in the first day and can reach 100% in the seventh day; the effective mortality of green pea aphids can reach25.23% in the first day and can reach 97.17% in the seventh day; the average aphid yield of red and green pea aphid treatment groups is obviously lower than the average aphid yield of a control group; the harm of propagation of a pea aphid population can be effectively inhibited; the preparation method is simple and convenient in process, low in cost, and short in required time; and the preparedinsecticide is good in insecticidal effect, convenient to operate and high in practicability.

Description

technical field [0001] The invention belongs to the technical field of insecticides, and relates to a preparation method of a medicament for controlling pea aphids. Background technique [0002] Drunken horse grass is a perennial herbaceous plant of the genus Achnatherum splendens in the grass family. It is mainly distributed in the natural grasslands of northern and northwestern my country and Mongolia. It is one of the main poisonous weeds in the natural grasslands of northern my country. Causes of livestock poisoning. Drunken Horse Grass is a perennial plant in the shape of fibrous roots, 60-70 cm high, solid stem, three nodes, the longer the internode, the higher the plant, the stem is slightly thinner from the second node, the stem base has fluff, and the ligule is small , ring-shaped, leaf sheaths loosely wrapped to the middle of the internodes, spikes, spikes upright, inflorescences not very dense, spikes 12-20 cm long. Spikelet internodes 1-2.5 cm, transparent membra...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): A01N65/44A01P7/04
CPCA01N65/00A01N65/44
Inventor 李春杰马亚玲
Owner LANZHOU UNIVERSITY
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