A method of trapping and preventing tea aphids

A tea aphid and trapping technology is applied in the fields of pest control, botanical equipment and methods, and devices for catching or killing insects. Reduction in the frequency of use and dosage, high efficiency

Active Publication Date: 2011-12-21
CHINA JILIANG UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Tea aphids are usually not controlled during production, so the yield and output value losses caused by this pest are very large

Method used

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  • A method of trapping and preventing tea aphids
  • A method of trapping and preventing tea aphids

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0021] Step 1: Separation and identification of volatile components of different varieties of tea trees

[0022] Use the air entrainment adsorption method. Put the potted tea tree plant part in a clean glass cover, let in clean air from the air inlet to take away the smell, flow through the Super Q column connected to the air outlet, wash the Super Q column with organic solvent, and slow down under nitrogen flow. Slowly concentrate the eluate to 20 left and right, take 1 , by GC-MS analysis, and with standard samples, 13 components in the volatiles of Longjing tea tree were identified: trans-2-hexenal, cis-3-hexen-1-ol, cis-3-hexenal ethylene acetate, 2-ethylhexanol, - Ocimene, Linalool, Nonanol, Cis-Hexenyl Butyrate, Decylal, Myristyl, Caryophyllene, Geraniol, and Hexadecane. By the same method, 13 components were isolated and identified from the volatiles of the whole Anji white tea plant: trans-2-hexenal, cis-3-hexen-1-ol, cis-3-hexene acetate, 2-Ethylhexanol, ...

Embodiment 2

[0047] In 2010, in Meijiawu, one of the origins of West Lake Longjing, a tea garden with an area of ​​1.3 hectares was selected. This tea garden is located in the mountains and forests, and generally no pesticides are used to control diseases and insect pests. Divide it into two parts, 300 meters apart. Part of it is a trapping area with an area of ​​3300 m 2 , on March 20, May 20, August 20, and September 20, 100 tea aphid plant-derived pheromone traps were evenly placed, and the color plates were jasmine yellow plastic sticky plates, with an interval of 7 m 8 m; the other part is the control without control. On March 30th, May 30th, August 30th, and September 30th when tea aphids migrated and flew, samples were taken at five points in the trapping area and the control area, each point was a 4-meter-long tea row, randomly 40 tea shoots were surveyed, 200 shoots were surveyed in each district each time, and the percentage of bud shoots with tea aphids was calculated (Table...

Embodiment 3

[0051] In April 2010, when the tea aphid was at its peak, another tea garden with an area of ​​1.2 hectares was selected in Meijiawu, which was divided into two parts with a distance of 200 meters in the middle, and one part was used as a trapping area with an area of ​​about 3300 m 2 , on April 20, when the aphids peaked, 100 tea aphid plant-derived pheromone traps were evenly placed, the color board was bud green plastic sticky board, and the interval was 7 m 8 m; the other part is the control without traps. May 1st is the season when the population density of tea aphids in Meijiawu tea garden is the highest. Samples were taken at five points in the trapping area and the control area. Investigate 200 shoots and calculate the percentage of shoots with tea aphids (Table 2). In late spring, tea aphids are caught at their peak, which has a significant restrictive effect.

[0052] .

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Abstract

The invention provides a method for trapping and controlling Toxoptera aurantii Boyer, which comprises the steps of: with cis-3-hexen-1-ol, trans-2-hexenal, gaultherolin and phenylcarbinol as taste source matters, preparing into a Toxoptera aurantii Boyer botanical pheromone trapping agent according to the proportion of 1:(0.1-15): (0.1-15): (0.1-15), or preparing the gaultherolin, schizonol and nepetalactone into a Toxoptera aurantii Boyer pheromone trapping agent according to the proportion of 1: (0.1-15): (0.1-15), selecting color bud green, rape flower yellow and jasmine yellow to be prepared into a sticky colored plate, combining with a sticky colored plate trapper to prepare a trapper, and placing the trapper into a tea garden for trapping Toxoptera aurantii Boyer or sexuales to reduce overwintering fertilized ova so that the population density in next year is reduced. The method provided by the invention is free of pollution, adapts to the production of current organic tea and non-polluted tea, and has the advantages of high control efficiency, stable performance, reduction of use frequency and use dosage of chemical pesticides, convenience for transportation of raw materials and use, and low cost.

Description

technical field [0001] The invention belongs to a method for preventing and controlling tea aphids, and relates to a method for trapping and preventing tea aphids. A plant pheromone trap or a tea aphid trapping agent and a sticky color plate are used to form a trap for trapping and preventing tea aphids. Background technique [0002] At present, there are about 40,000 hectares of organic tea gardens in my country, where pesticides are prohibited, but serious pests occur; there are also vast areas of pollution-free tea gardens in my country, where the types and doses of pesticides are restricted. Therefore, the use of chemical pesticides is bound to gradually decrease. [0003] tea aphid Toxoptera aurantii Boyer is an important pest of tea trees in my country, which belongs to the order Homoptera Aphididae, and is widely distributed in tea regions in my country. From the Rizhao area of ​​Shandong Province to the Sanya area of ​​Hainan Island, 10 species are bred each year. ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): A01M1/02A01M1/14A01N31/02A01N35/02A01N37/40A01N31/04A01N43/12A01P19/00
Inventor 韩宝瑜崔林
Owner CHINA JILIANG UNIV
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