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A kind of plant source repellent of Leafhopper

A technology of small green leafhoppers and plant sources, applied in animal repellents, plant growth regulators, pest repellents, etc., can solve the problems that affect the quality and safety of tea, the ecological security of tea gardens, and the increase in drug resistance, and achieve repellent effects Obvious, easy to use, environmentally friendly effect

Active Publication Date: 2020-08-18
TEA RES INST CHINESE ACAD OF AGRI SCI
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the application of a large number of chemical pesticides has led to a rapid increase in drug resistance, which has seriously affected the quality and safety of tea and the ecological safety of tea gardens.

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0031] Example 1: Screening of components of a plant-derived repellant for the small green leafhopper in a tea garden

[0032] 1) Selection of repellent substances for the small green leafhopper in the tea garden

[0033] Select dimethyl disulfide, dimethyl trisulfide, allyl methyl sulfide, allyl methyl disulfide, eucalyptol, p-cymene from aromatic plants and allium plant volatiles , linalool oxide, ocimene and other 8 kinds of substances.

[0034] 2) Field screening test

[0035] The above-mentioned 8 kinds of substances are respectively configured into 40% ethanol solution, then diluted 200 times with water, and sprayed on the tea tree crown. The control was sprayed with 200-fold aqueous solution of absolute ethanol. The water consumption per mu is 60L. Use the yellow board to investigate the adult population density of the small green leafhopper in various communities. Each treatment was arranged randomly, and each treatment had 4 replicates.

[0036] 3) Experimental ...

Embodiment 2

[0040] Embodiment 2: A kind of key component of plant source repellent of small green leafhopper in tea garden is determined

[0041] 1) Combination of different compounds and field application

[0042] 5 kinds of substances such as dimethyl disulfide, allyl methyl sulfide, allyl methyl disulfide, eucalyptol and p-cymene were combined according to Table 2 in equal weight ratios. Then the mixture of different combinations is configured into a 20% ethanol solution, diluted 300 times with water, and sprayed on the crown of the tea tree. As a control, 300 times of absolute ethanol solution was sprayed. The water consumption per mu is 60L. Use the yellow board to investigate the adult population density of the small green leafhopper in various communities. Each treatment was arranged randomly, and each treatment had 4 replicates.

[0043] 3) Experimental results

[0044] From the survey data in Table 2, it can be seen that dimethyl disulfide, allyl methyl sulfide, and eucalypt...

Embodiment 3

[0047] Embodiment 3: Preparation and effect of a kind of plant source slow-release repellent of small green leafhopper in tea garden

[0048] 1) Preparation of original solution of plant-derived repellent of tea garden small green leafhopper (parts by weight)

[0049] 58 parts of dimethyl disulfide, 8 parts of allyl methyl sulfide, 17 parts of eucalyptol, 7 parts of allyl methyl disulfide, 10 parts of p-cymene, and then mix uniformly to obtain small Put through the original solution of green leafhopper repellent and put it in a -20 ℃ refrigerator for later use.

[0050] 2) Preparation of repellent slow-release preparation

[0051] The above stock solution was filled into 2mL polyethylene sustained-release vials. Each bottle is filled with 1mL repellent stock solution, sealed at the mouth of the bottle, and placed in a -20°C refrigerator for later use.

[0052] 3) Experimental results

[0053] In Shaoxing in October 2017, the slow-release preparation of the repellent of the...

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PUM

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Abstract

The invention relates to an empoasca onukii plant-originated repellent, and belongs to the technical field of tea garden pest green prevention and control. The empoasca onukii plant-originated repellent is prepared from the following ingredients in parts by weight: 30 to 80 parts of dimethyl disulfide, 5 to 10 parts of allyl methyl sulfide and 10 to 40 parts of eucalyptol. The empoasca onukii plant-originated repellent uses an aromatic plant and a green onion plant volatile matter as raw materials; through the reasonable matching, an obvious synergistic effect is achieved; a repellent effect on empoasca onukii adult insects is obvious; the environmental-friendly effects are achieved; the use is convenient.

Description

technical field [0001] The invention belongs to the technical field of green prevention and control of pests in tea gardens, and in particular relates to a plant-derived repellant of the green leafhopper. Background technique [0002] Empoasca onukii Matsuda (Empoasca onukii Matsuda) adults and nymphs sting and suck tea tree shoot juice, which is a major pest in tea gardens in my country. When the tea tree is seriously damaged, the branches will be reddish brown and scorched, and the growth of buds and leaves will be stagnant and fall off, which will have a great impact on the yield and quality of tea. At present, the occurrence and control of this insect mainly rely on chemical pesticides. However, the application of a large number of chemical pesticides has led to a rapid increase in drug resistance, which has seriously affected the quality and safety of tea and the ecological safety of tea gardens. Therefore, there is an urgent need for an effective green control techno...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): A01N41/12A01N31/04A01N31/06A01N43/20A01N27/00A01P17/00
CPCA01N27/00A01N31/04A01N31/06A01N41/12A01N43/20
Inventor 蔡晓明边磊罗宗秀李兆群辛肇军陈宗懋
Owner TEA RES INST CHINESE ACAD OF AGRI SCI