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A kind of method of controlling pepper aphid

A kind of technology of aphids and Zanthoxylum bungeanum, applied in pest control, botany equipment and methods, insecticides, etc., can solve problems such as poor control, environmental pollution, and enhanced resistance of aphids, so as to increase yield, control occurrence and spread, The effect of increasing farmers' income

Active Publication Date: 2021-05-11
SOUTHWEST FORESTRY UNIVERSITY
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] The object of the present invention is to provide a method for preventing and treating pepper aphids, so as to solve the problems of aphid resistance enhancement caused by the use of chemical drugs, poor control and environmental pollution, etc.

Method used

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  • A kind of method of controlling pepper aphid
  • A kind of method of controlling pepper aphid
  • A kind of method of controlling pepper aphid

Examples

Experimental program
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Effect test

Embodiment 1

[0022] Zanthoxylum bungeanum seedlings were planted and maintained, and healthy and well-growing pepper seedlings were selected for experiments. Seven concentration gradients were set for the inducer 2,6-dichloroisonicotinic acid (0.4mmol / L, 0.6mmol / L, respectively). , 0.8mmol / L, / 1.0mmol / L, 1.2mmol / L, 1.4mmol / L), the peppercorns were treated with different concentrations of inducers, and then 10 aphids of the same size were artificially inoculated on each pepper tree , with 3 replicates per treatment. The treatment method set in this patent is: after spraying different exogenous hormones respectively, then inoculate the same number of aphids, and set a blank control. In order not to be affected by external factors, after spraying exogenous hormones and inoculating aphids, each pepper seedling was bagged. Observe and count the number of aphids on each pepper tree every day, and observe for about 10 days. According to the number of aphids observed, calculate the population de...

Embodiment 2

[0029] Plant and maintain Zanthoxylum bungeanum seedlings, select healthy and well-growing Zanthoxylum bungeanum seedlings for experiments, use 2,6-dichloroisonicotinic acid with a fixed concentration of 1mmol / L; 1mmol / L 2,6-dichloroisonicotinic acid Type 1 substituent position Y of methyl ester derivative is chlorine, Q is alkyl, A is phenyl, X is oxygen; 1mmol / L 2,6-dichloroisonicotinic acid methyl ester derivative 2 type substituent position Y is Chlorine or bromine, Q is an ester group, A is a phenyl group, and X is a sulfur group to treat Zanthoxylum bungeanum pepper, and then artificially inoculate 10 aphids of the same size on each tree, and set 3 replicates for each treatment. The treatment method set in this patent is: after spraying different types of exogenous hormones respectively, then inoculate the same number of aphids, and set a blank control. In order not to be affected by external factors, after spraying exogenous hormones and inoculating aphids, each pepper ...

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Abstract

The invention provides a method for preventing and treating pepper aphids, which belongs to the field of plant pest control. By using exogenous hormone 2,6-dichloroisonicotinic acid and its methyl ester derivatives (INA for short), the rate of aphids in new shoots is greater than 4% of the pepper trees are sprayed, and the control rate is as high as 90%. Compared with traditional chemical control methods, it is easy to make aphids resistant to pesticides. At the same time, it will cause harm to the environment and the plants themselves, and will also kill the natural enemies of aphids. And the persistence of prevention and control is not strong and other factors. The present invention uses non-toxic, environmentally friendly plant exogenous hormones that do no harm to the environment and plants themselves as inducers to induce Zanthoxylum bungeanum to develop resistance to aphids, thereby inhibiting the growth and reproduction of aphids, and even killing aphids, thereby effectively controlling The occurrence and spread of pepper aphids will increase the yield of pepper and increase farmers' income.

Description

technical field [0001] The invention relates to the field of plant pest control, in particular to a method for preventing and controlling pepper aphids. Background technique [0002] The pepper aphid belongs to the family Aphididae of the order Homoptera, which occurs in the pepper area and damages the twigs, young leaves, young flowers and young fruits of the pepper tree with nymphs and adults. The growth and development of pepper trees are poor after being damaged, resulting in flower drop and fruit drop, which reduces yield. In severe cases, the mildew disease will affect the photosynthesis of the leaves, reduce the fruit setting rate of the pepper tree or the fruit will not be full, and the production will be reduced by about 70%, which will greatly reduce the economic benefits. Pest control is one of the world's most difficult problems. The control of many pests mainly depends on chemical pesticides, which has led to the emergence of drug resistance in about 600 specie...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): A01N43/40A01P7/04A01P21/00A01G13/00
CPCA01G13/00A01N43/40
Inventor 刘朝茂杨斌杨雨雯伍建榕刘丽李萍
Owner SOUTHWEST FORESTRY UNIVERSITY
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