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Tea geometrid sex pheromone composition and lure thereof

A composition and pheromone technology, applied in pest control, pest attractant, animal repellent, etc., can solve problems such as difficulty in trapping male moths, unstable trapping effect, etc., achieve stable trapping effect, Good trapping effect, good trapping effect

Active Publication Date: 2017-05-24
HEFEI JIUYI AGRI DEV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] The tea geometre sex pheromone components reported so far are Z3Z6Z9-octadecatriene and Z3Z9-6,7-epoxy-octadecadiene, both of which use Z3Z9-6,7-epoxy-octadecadiene The optical racemate of alkenes is used to trap adults of tea geometrids, and the trapping effect is not stable, especially when the population density in the field is low, it is difficult to trap male moths

Method used

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  • Tea geometrid sex pheromone composition and lure thereof
  • Tea geometrid sex pheromone composition and lure thereof
  • Tea geometrid sex pheromone composition and lure thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0045] (1) Components of sex pheromones

[0046] The compounds used in the test Z3Z6Z9-octadecatriene (Z3Z6Z9-18Hy), Z3Z9-6,7-epoxy-octadecadiene (Z3Z9-6,7epo-18Hy), (-)-(3Z,9Z, 6S,7R)-6,7-epoxyoctadecadiene (Z3Z9-6S,7R-epo-18Hy) and (+)-(3Z,9Z,6R,7S)-6,7-epoxyoctadecadiene Carbodiene (Z3Z9-6R, 7S-epo-18Hy) was used to distill the solvent of the above compound with distilled n-hexane. Among them, the structures of optical isomers Z3Z9-6S, 7R-epo-18Hy and Z3Z9-6R, 7S-epo-18Hy are as follows figure 1 shown.

[0047] (2) lure core

[0048]A cylindrical rubber stopper with one end closed is selected as the sex pheromone carrier, with a volume of 500 μl. The rubber stoppers were cleaned with n-hexane and dichloromethane, respectively, and dried naturally. The above treated rubber stopper is used as a release carrier for sex pheromone.

[0049] Prepare lures before the test. According to the test requirements, the components of the sex pheromone were prepared into a n-hexane ...

Embodiment 2

[0070] Embodiment 2: the trapping effect of the lure core of different combination proportioning

[0071] The composition of Z3Z6Z9-18Hy and Z3Z9-6S, 7R-epo-18Hy was prepared into a 1000 μg / mL solution with n-hexane, and prepared into different ratios of binary sex pheromone component solutions according to the test requirements, and then 10 μL of sex information Add the plain solution dropwise to the lure. The moth trapping activity test was carried out in the field (from June 18 to June 21, 2015) with lures composed of different proportions. The preparation method of lures and traps and the field test method were similar to those in Example 1. The same lure was used repeatedly for four days, and the average number of lured moths and the daily maximum number of lured moths in the four days were counted.

[0072] Wherein, the composition is prepared according to the following mass ratios:

[0073] Recipe 1: Z3Z6Z9-18Hy:Z3Z9-6S,7R-epo-18Hy=1:9

[0074] Recipe 2: Z3Z6Z9-18Hy:...

Embodiment 3

[0084] Embodiment 3: The trapping effect of the luring cores of different contents of L-isomer

[0085] The composition of Z3Z6Z9-18Hy and Z3Z9-6,7epo-18Hy (a mixture of Z3Z9-6S,7R-epo-18Hy and Z3Z9-6R,7S-epo-18Hy) was prepared into a 1000 μg / mL solution with n-hexane, according to The test requires the preparation of binary sex pheromone component solutions in different proportions, and then adding 10 μL of the sex pheromone solution dropwise into the lure. Lure cores composed of different ratios were tested for moth-attracting activity in the field (June 22, 2015-June 25, 2015). The preparation method of lure cores and traps, and the field test method were similar to those in Example 1. The mass ratio of Z3Z6Z9-18Hy to total Z3Z9-6,7epo-18Hy is 4:6. The proportions of the levorotatory form Z3Z9-6S, 7R-epo-18Hy in the total Z3Z9-6,7epo-18Hy were 50%, 60%, 70%, 75%, 85%, 95%, and 100%, respectively. The results are shown in Table 3.

[0086] Table 3 Field lure moth activity...

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Abstract

The invention discloses a tea geometrid sex pheromone composition and a lure thereof, and belongs to the technical field of tea geometrid prevention and treatment. The tea geometrid sex pheromone composition is prepared from Z3Z6Z9-gaducene and (-)-(3Z,9Z,6S,7R)-6,7-epoxy octadecadienoic acid, wherein the mass ratio is 6:4-1:9. After the composition is mixed, a sex pheromone solution is obtained, and the sex pheromone solution is added into a release carrier to obtain the lure; the lure is fixed to a sticky colored card or a basin to obtain a trap, the trap is arranged in a tea garden, and the trap is made to be higher than the top end of a tea covering. According to the tea geometrid sex pheromone composition and the lure thereof, the strong male tea geometrid trap capability is achieved, the injurious insect occurrence peak period can be effectively monitored, blind medicine spraying is avoided, the good control effect is achieved, and natural enemy of injurious insects can be effectively protected and utilized.

Description

technical field [0001] The invention relates to a tea geometrid sex pheromone composition and a lure core thereof, belonging to the technical field of tea geometrid prevention and control. Background technique [0002] Tea geometrids belong to Lepidoptera, Geometridae, and Cladochoridae subfamily, and are important pests of tea trees in the southeast tea region of my country. Leaf-eating larvae are the main damage mode, and all leaves and buds of tea trees can be eaten up in outbreaks. At present, the main method of controlling tea inchworm is still using organic pesticides. However, the large-scale use of organic pesticides over the years has brought about consequences such as the reduction of natural enemies, the enhancement of pest resistance, environmental pollution, and excessive pesticide residues in tea products. For China's tea industry, it is particularly important to use insect information to control tea geometrids. [0003] The tea geometre sex pheromone compone...

Claims

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Application Information

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IPC IPC(8): A01N43/20A01N27/00A01P19/00A01M1/02
CPCA01M1/02A01M2200/012A01N27/00A01N43/20A01N2300/00
Inventor 宛晓春杨云秋郭峰俞杰龙雁华
Owner HEFEI JIUYI AGRI DEV
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