Tea garden insect trapping method

A technology for natural enemy insects and tea gardens, which can be used in the device, application, and animal husbandry of catching or killing insects. It can solve the problems of natural enemies in tea gardens that have not yet been seen, and achieve the effects of low cost, easy transportation, and stable performance.

Inactive Publication Date: 2005-03-16
TEA RES INST CHINESE ACAD OF AGRI SCI
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

However, there have been no reports of using colors to lure natural enemies in tea gardens

Method used

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  • Tea garden insect trapping method

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0047] Embodiment 1 adopts adsorption method to separate and identify 10 kinds of volatiles of tea shoots infested by insects, namely benzaldehyde, trans-2-hexenal, indole, methyl salicylate, ocimene, cis-3-hexenyl acetate, cis-3-hexen-1-ol, linalool, geraniol and trans-2-hexenoic acid

[0048] Make a hollow glass column with a small opening of 7 mm in diameter at both ends, with a volume of 5 liters. The inlet is connected to a compressed air bottle, and the outlet is connected to a Tenax TA adsorption column and a vacuum pump in turn. The TenaxTA column was activated with nitrogen at 275°C for 4 hours prior to adsorption of volatiles. Add 200 grams of tea aphids to harm tea shoots in a glass container, blow in air, and simultaneously draw air from behind the adsorption column. Before the inlet and behind the Tenax TA column, use a flow meter to control the flow rate. The air inlet and outlet flow rates are both 300 ml / min.

[0049] After 12 hours, the adsorption column was ...

Embodiment 2

[0051] Example 2 Determining that benzaldehyde, trans-2-hexenal, indole, and methyl salicylate are volatile components with attractant activity by biological assay method

[0052] According to Embodiment 2, the behavioral responses of 9 kinds of natural enemy insects to 10 kinds of pest volatiles in the olfactometer were measured with a taste source with a concentration of 1 μg / ml. Count the number of natural enemy insects that select the taste source and n-hexane. use χ 2 The method was used to detect the difference between the number of insects that chose the odor source and the number of insects that chose n-hexane. It was found that 9 kinds of tested insects showed obvious tropism to benzaldehyde, trans-2-hexenal, indole, and methyl salicylate, and tended to trans-2-hexenal, benzaldehyde, and methyl salicylate The difference between the number of insects and the number of insects tending to the control (n-hexane) reached a significant level (P<0.05).

[0053] According ...

Embodiment 3

[0054] Example 3: Benzaldehyde, trans-2-hexenal, indole, and methyl salicylate were made into flavor sources with a concentration of 0.01-20 μg / ml respectively, and then the four flavor sources were mixed in a ratio of 1: 0.5- 1.5∶0.2-1.2∶0.3-1.5 combination to prepare an attractant for attracting natural enemy insects

[0055] Using n-hexane as solvent, make benzaldehyde, trans-2-hexenal, indole, and methyl salicylate respectively into odorants with a concentration of 1 μg / ml, and then press 1: 1:1:1 combination. Soak rubber tips made of natural rubber in absolute ethanol for 24 hours and let dry. Soak the rubber head with the attractant for 24 hours and dry it to make the natural enemy attractant.

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Abstract

The invention discloses a method for trapping tea plantation insects comprising the steps of, (1) separating and determining 10 pest damage volatile matters by adopting adsorptive separation method, (2) determining four volatile constituents with inducement activity by biological assay method, (3) preparing four active constituents into flavor source substances, matching the four flavor source substances, so as to formulate the insect attractant, (4) determining three colors with inducement effect to insects by tea plantation small zone inducement experiments, (5) combining the bud greening color with the attractant to prepare insect trapper, and (6) placing the trapper into the field to trap the insects.

Description

technical field [0001] The invention relates to a method for trapping natural enemy insects in tea gardens. Background technique [0002] my country is the motherland of tea, and my country's tea tree cultivation has a long history. In recent years, it has been found that there are more than 800 species of tea tree pests in my country, and 5% (30-45 species) of them are important pests that often occur. The concept of integrated management of tea tree pests has been proposed for decades, and has been continuously enriched and developed in the practice of pest control. However, the actual control of tea tree pests mainly relies on chemical control. Generally, some tea farms and farmers use chemical defense more than 10 times a year. During the summer and autumn tea season, they need to apply chemical control once every 7 to 10 days, which is likely to cause pesticide residues and cause pesticide resistance in pests. The food web and chain struct...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): A01M1/20
Inventor 韩宝瑜陈宗懋董文霞崔林
Owner TEA RES INST CHINESE ACAD OF AGRI SCI
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