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Method for preventing and controlling empoasca vitis by trapping

A false-eye small green leafhopper and trapping technology is applied in the fields of pest control, botanical equipment and methods, devices for capturing or killing insects, etc. Quick effect, easy operation, reduce the effect of chemical control

Inactive Publication Date: 2013-03-27
CHINA JILIANG UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The leafhopper has a large number, serious damage, and is difficult to control. It has become a bottleneck restricting the production of organic tea.

Method used

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  • Method for preventing and controlling empoasca vitis by trapping
  • Method for preventing and controlling empoasca vitis by trapping
  • Method for preventing and controlling empoasca vitis by trapping

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0018] (1) Choose healthy tea tree plants as the test material, cover with a clean glass cover, and pass clean air from the air inlet, with the tea tree smell flowing through the Super Q adsorption column connected to the air outlet, and rinse the adsorption column with chromatographic pure ether. The eluent is slowly concentrated under a stream of high-purity nitrogen. The concentrated liquid was analyzed by gas-mass spectrometry, qualitatively matched with standard samples, and quantified by adding internal standard ethyl decanoate to identify 13 main components in the smell of tea trees;

[0019] (2) Using the 3rd instar green leafhopper nymphs as test insects, the 13 main components identified, pentanol and phenethyl alcohol were used as taste sources, and behavioral bioassays were carried out by Y-shaped olfactory. Indicates: amyl alcohol, -Ocimene, phenethyl alcohol, and trans-2-hexenal are the most attractive to small green leafhoppers with false eyes. Allocate these 4 g...

Embodiment 2

[0027] (1) Isolate and identify healthy whole tea plant volatiles and test their attractant activity to leafhoppers

[0028] Cover the ground part of the potted Longjing tea tree plant with a clean glass cover, and pass in filtered clean air from the air inlet, entraining the tea tree odor through the Super Q adsorption column connected to the air outlet, dynamically adsorbing 8 After 10 hours, remove the adsorption column and rinse with chromatographic pure ether. The eluent is slowly concentrated to about 20μl under a stream of high-purity nitrogen. Aspirate 1μl, analyze by GC-MS, qualitatively match with standard samples, add internal standard ethyl caprate for quantification, and identify 13 main components in the smell of tea tree, see figure 2 . figure 2 Middle: 1 is trans-2-hexenal ( E )-2-hexenal, 2 is cis-3-hexen-1-ol ( Z )-3-hexen-1-ol, 3 is cis-3-hexene acetate ( Z )-3-hexenyl acetate, 4 is 2-ethylhexanol 2-ethyl-1-hexanol, 5 is -Ocimene -ocimene, 6 is linalool, 7...

Embodiment 3

[0052] For many years, the tea gardens of Gengxiang Organic Tea Company in Wuyi County, Zhejiang Province have banned chemical pesticides. Usually, at the end of spring tea in mid-May, the tea gardens are re-pruned and the branches and leaves are cut to suppress the first leafhopper population, and the second in September. Plant and mineral pesticides are used when leafhopper populations are in full bloom. The pollution-free tea gardens surrounding its company have been using chemical pesticides. Do the following control tests:

[0053] (1) Entrapment test In 2010, the research group selected the company's leafhopper density to reach the control target, with an area of ​​6700 m 2 The tea plantations are used as trapping areas and are not trimmed. Regular field surveys showed that June 4 was the first season for leafhopper adults, that is, the number of adult leafhoppers accounted for 16% of the total leafhopper population. Then the new trap was loaded on a rubber head to mak...

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Abstract

The invention provides a method for preventing and controlling empoasca vitis by trapping. The method comprises the following steps of: preparing a trapping agent by using pentanol, -ocimene, phenethyl alcohol and anti-2-hexenal as flavor source substances in a ratio, carrying the trapping agent on a rubber head to form an inducing core, attaching the inducing core to a bright yellow sticky plate to form an empoasca vitis trapper, and implementing trapping at the proper trapping preventing and controlling period of empoasca adults so as to effectively control year-round insect population. By qualitatively and quantitatively identifying 13 main components in tea tree smell, screening 4 components with strongest empoasca inducing activity as the flavor source substances to prepare the trapping agent and implementing trapping at the proper trapping preventing and controlling period of the empoasca adults, the year-round insect population can be effectively restrained, and chemical prevention and control can be reduced. The method is simple, convenient in operation, quick in response and low in cost. The method is pollution-free, accords with national green preventing and controlling principles, and meets the building requirements of standard ecological tea gardens.

Description

technical field [0001] The invention belongs to a method for trapping and preventing the adults and larvae of the important pest in tea gardens, Leafhopper, and relates to the separation and identification of volatiles from natural tea shoots, the detection of components that have attractant activity to leafhoppers, and the composition of trapping agents for leafhoppers; The bright yellow color with strong attractiveness is screened out to make a bright yellow sticky board; the trapping agent and the sticky board are combined into a trap, and adults are trapped at the beginning and peak stages of the leafhopper population to reduce the density of the leafhopper. Background technique [0002] Since the 1950s, the false-eyed green leafhopper has been the most serious pest in tea gardens in mainland my country, mainly relying on chemical control. Based on years of experience in pest control, the industry estimates that the annual amount of pesticides used to control this leafhop...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): A01M1/02A01M1/10A01N35/02A01N31/04A01N31/02A01N27/00A01P19/00
Inventor 韩宝瑜崔林穆丹
Owner CHINA JILIANG UNIV
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