Botanical attractant of encarsia formosa and application of botanical attractant

A technology of amphid wasps and attractants, applied in the direction of attracting pests, plant growth regulators, applications, etc., can solve the problems of insufficient diffusion ability and low parasitism rate of amphids, and improve the effect of biological control, The effect of simple preparation method and convenient use

Inactive Publication Date: 2018-11-09
CHINA JILIANG UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] The purpose of the present invention is to design and synthesize a plant-derived attractant in the process of biological control for the lack of dispersal ability and low parasitic rate of the wasps of Liphid aphid, and to provide the application of the attractant in the field of pest control

Method used

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  • Botanical attractant of encarsia formosa and application of botanical attractant
  • Botanical attractant of encarsia formosa and application of botanical attractant

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0014] 1) Mix E)-β-ocimene, β-myrcene, methyl salicylate, and β-caryophyllene in a mass ratio of 1:1:1:1

[0015] 2) Mix the mixed components in 1) with paraffin oil in a weight ratio of 1:1 to obtain an attractant solution.

[0016] 3) The attractant solution obtained in 2) is added dropwise to the bait core to form a releaser with a slow release effect, and the amount of the attractant solution on each bait core is 1 gram.

Embodiment 2

[0018] 1) Mix E)-β-ocirene, β-myrcene, methyl salicylate, and β-caryophyllene in a mass ratio of 4:3:2:1

[0019] 2) Mix the mixed components of 1) with paraffin oil in a ratio of 10:1 by weight to obtain an attractant solution.

[0020] 3) Drop the attractant solution obtained in 2) onto the bait core to form a releaser with slow release effect, and the dripping amount of the attractant solution on each bait core is 8 grams.

[0021] Example 2:

[0022] The plant-derived attractant of Aphididae prepared in Example 1 was tested in the glass greenhouse of China Jiliang University.

[0023] 1) Establish two net rooms with a length of 10m, a width of 8m, and a height of 1.8m in the glass greenhouse, and cover the 60-mesh insect-proof nets, and transplant tomato seedlings into the two nets.

[0024] 2) After the tomato seedlings were transplanted, the Bemisia tabaci was inserted into six nets for indoor reproduction. After the Bemisia tabaci proliferated in large numbers for 20 days, three ...

Embodiment 3

[0032] 1) Establish two net rooms with a length of 10m, a width of 8m, and a height of 1.8m in the glass greenhouse, and a 60-mesh insect-proof net for transplanting tomato seedlings into the two nets.

[0033] 2) After the tomato seedlings are transplanted, the Bemisia tabaci is inserted into the two net rooms for indoor reproduction. After the Bemisia tabaci proliferates in large numbers, two net rooms are hung with the Aphid bee card for prevention and control. One net room is hung with the Aphid bee card and connected to the release prepared in Example 1, and the other is only hung As a control, the card was not connected to the release device.

[0034] 3) Set the bee release point in the middle of the net room, with the bee release point as the center, mark at 2, 4, 6, 8 meters away from the center point in the east-west direction. After placing the queen bee for 3 days, collect the leaves, observe the parasitic rate, and analyze The relationship between diffusion distance an...

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Abstract

The invention discloses a botanical attractant of encarsia formosa and application of the botanical attractant. The botanical attractant of the encarsia formosa is characterized in that an active component is composed of (E)-beta-ocimene, beta-myrcene, methyl salicylate and beta-carypohyllene. The invention further discloses application of the botanical attractant of the encarsia formosa to the field of prevention and control of insect pests; the botanical attractant of the encarsia formosa can be dripped onto lures with a slow release effect to prepare releasing devices capable of slowly releasing the attractant; the attractant releasing devices are uniformly distributed in the field, so that the field dispersion capability of the encarsia formosa can be effectively improved and the parasitic rate of bemisia tabaci nymph is improved. A preparation method of the attractant disclosed by the invention is simple; compared with a planted plant attraction band, the botanical attractant hasthe effect of reducing occupied cultivated lands and the complexity of farm operation, and is suitable for being applied in a large area; the pesticide dosage can be reduced, and the ecological environment pollution and pesticide residues in crops are effectively reduced; the botanical attractant has remarkable ecological benefits and social benefits.

Description

Technical field [0001] The present invention relates to the field of plant protection, in particular to a plant-derived attractant for Aphididae and its application. Background technique [0002] Encarsia formosa Gahan belongs to the genus Hymenoptera, Encarsia formosa Gahan, and is a parasitic natural enemy of important agricultural pests, Bemisia tabaci (Gennadius) and Trialeurodes vaporariorum (Westwood), and can effectively control it. harm. Because the host plants of Bemisia tabaci and greenhouse whitefly are extensive, the damage is serious, and the resistance to pesticides is rapid, the use of biological control technology has become a research hotspot in the world. Existing studies have shown that Aphididae can successfully control the damage of Bemisia tabaci in greenhouses. In recent years, with the outbreak of B-type Bemisia tabaci, the use of parasitic natural enemies such as Aphididae to control Bemisia tabaci has been studied. Has also become a new hot spot. [000...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): A01N37/40A01N27/00A01P19/00A01N25/18A01M1/02
CPCA01M1/02A01N25/18A01N27/00A01N37/40
Inventor 张蓬军刘光富俞晓平申屠旭萍
Owner CHINA JILIANG UNIV
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