Method for preventing and controlling empoasca vitis by trapping

A technique of trapping and trapping small green leafhoppers with false eyes, which is applied in pest control, botany equipment and methods, devices for catching or killing insects, etc., can solve the problems of large number of leafhoppers, heavy damage, and difficult control, and achieve Quick effect, easy operation, and reduced effect of chemical control

Inactive Publication Date: 2011-09-21
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 them with a clean glass cover, let the clean air flow through the air inlet, entrain the tea tree smell and flow through the Super Q adsorption column connected to the air outlet, rinse the adsorption column with chromatographically pure ether, The eluate was concentrated slowly under a stream of high-purity nitrogen. The concentrated solution was analyzed by gas-mass spectrometry, qualified with standard samples, and quantified by adding internal standard ethyl caprate, and identified 13 main components in the smell of tea trees;

[0019] (2) The 3rd-instar nymph of the false-eyed green leafhopper was used as the test insect, and the 13 main components identified, as well as pentanol and phenethyl alcohol were used as the taste source, and the behavioral biometry was carried out by a Y-shaped olfactometer. The results were Indicates: amyl alcohol, - Ocimene, phenylethyl alcohol, and trans-2-hexenal were t...

Embodiment 2

[0027] (1) Isolate and identify volatiles from healthy whole tea plants and detect their attractant activity to leafhoppers

[0028] Cover the above-ground part of the potted Longjing tea tree plant with a clean glass cover, and pass the filtered clean air from the air inlet, entraining the tea tree smell to flow through the Super Q adsorption column connected to the air outlet, and dynamically absorb 8 After 10 hours, the adsorption column was removed and rinsed with chromatographically pure ether, and the eluate was slowly concentrated to about 20 μl under high-purity nitrogen flow. Draw 1 μl and analyze by gas-mass spectrometer, cooperate with standard samples for qualitative, add internal standard ethyl caprate for quantitative, and identify 13 main components in tea tree odor, see figure 2 . figure 2 In: 1 is trans-2-hexenal ( E )-2-hexenal, 2 is cis-3-hexen-1-alcohol ( Z )-3-hexen-1-ol, 3 is cis-3-hexene acetate ( Z )-3-hexenyl acetate, 4 is 2-ethyl-1-hexanol, 5 ...

Embodiment 3

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

[0053] (1) Trapping test In 2010, the research group selected a piece of leafhopper in the company whose density reached the control index, with an area of ​​6700 m 2 The tea gardens are used as trapping areas and are not pruned. Regular field surveys showed that June 4th was the peak period of leafhopper adults, that is, the number of adults accounted for 16% of the total leafhopper population, so the new traps were loaded on ru...

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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 plateto 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 Applications(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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