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Bemisia tabaci attractant composition and application thereof

A technology of Bemisia tabaci and composition, which is applied in the field of preparation of insect sex pheromones, can solve the problems of pest resistance, human and environmental safety threats, etc., and achieve the effects of strong stress resistance, long-lasting effect and environmental friendliness

Inactive Publication Date: 2020-07-10
INST OF PLANT PROTECTION CHINESE ACAD OF AGRI SCI
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Traditionally, agricultural control methods such as cleaning the greenhouse and selecting insect-free seedlings are mostly used; physical control methods that use the orange-yellow property of whitefly to trap; biological control methods that use natural enemies of whitefly such as Encarsia formosa; The above control process is relatively complicated, and people especially prefer chemical pesticide control, but the use of a large number of chemical pesticides will not only make pests resistant to pesticides, but also pose a threat to the safety of humans and the environment

Method used

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  • Bemisia tabaci attractant composition and application thereof
  • Bemisia tabaci attractant composition and application thereof
  • Bemisia tabaci attractant composition and application thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0019] Embodiment 1 prepares the lure core of whitefly attractant composition

[0020] Add the n-hexane solution containing Bemisia tabaci pheromone and synergist dropwise to the trans-rubber head lure in turn, after the n-hexane volatilizes, then add a certain amount of n-hexane dropwise to the lure, wait until the n-hexane After the complete volatilization, the lure core containing the whitefly attractant composition is prepared, and the lure core is placed in a triangular trap, and then the trap is placed in a field where the whitefly occurs more seriously. In order to ensure the release effect, 1000-1500 μg of the Bemisia tabaci attractant composition was placed in every 1 mL of rubber lure core, and the average distance between the traps was 15 m. The chemical structure of cis-3-hexallylic acid ester in the synergist is as follows figure 1 Shown, the chemical structure of cis-3-hexene-2,2-difluoroacetate is as figure 2 Shown, the chemical structure of cis-3-hexene-3-me...

Embodiment 2

[0024] Embodiment 2 field biological activity determination test

[0025] Select crop varieties, growing conditions, fertilizer and water management conditions consistent, an area of ​​more than 10 mu, and an experimental field where the occurrence of whitefly is relatively serious. Set up 3 repetitions for each treatment, and randomly place the above-mentioned triangle-shaped trap containing the whitefly attractant composition. device. The trap equipped with the whitefly pheromone component lure was used as a positive control; the trap equipped with a blank lure not containing the whitefly attractant composition was used as a blank control. After placement, the number of trapped whiteflies was investigated every two days, and the sticky board was replaced in time to remove the trapped whiteflies. At the same time, the position of the trap was randomly changed to eliminate the position effect. The investigation continued for 15 days. The trapping effect was as follows: Table ...

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Abstract

The invention discloses a bemisia tabaci attractant composition and application thereof. The attractant composition comprises bemisia tabaci pheromone and a synergist in a mass ratio of 1:(0.1-0.8). Specifically, the bemisia tabaci pheromone is composed of cis-3-hexenyl acetate and cis-3-hexenal in a mass ratio of 9:1; and the synergist is one or more of cis-3-hexene propionate, cis-3-hexene-2, 2-difluoroacetate and cis-3-hexene-2-methyl-3-crotonate. The bemisia tabaci attractant composition is small in dosage and environmentally friendly, can be accurately applied to bemisia tabaci pest situation prediction, mass trapping and mating interference, remarkably improves the bemisia tabaci green control effect, and has important significance for comprehensive treatment of bemisia tabaci.

Description

technical field [0001] The invention belongs to the technical field of preparation of insect sex pheromones, and in particular relates to a whitefly attractant composition and application thereof. Background technique [0002] The whitefly Bemisia tabaci (Gennadius) belongs to the order Homoptera and belongs to the family Whitefly family, and is a worldwide pest. It spreads widely and breaks out into disasters all over the world, and has become an important pest in the agricultural production of countries such as the United States, India, Pakistan, Sudan and Israel. Bemisia tabaci shows different damage symptoms to different plants. The damaged leaves of leafy vegetables such as cabbage and cauliflower are shrunk, yellowed, and withered; , the fruit ripens unevenly. Bemisia tabaci can produce 4-6 generations per year in the open fields in temperate regions of my country. It has strong reproductive ability, and a single insect can lay 30-300 eggs. The overlap of generations...

Claims

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Application Information

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IPC IPC(8): A01N37/02A01N35/02A01N37/06A01P19/00A01M1/02A01M1/10
CPCA01M1/02A01M1/106A01M2200/012A01N35/02A01N37/02A01N37/06
Inventor 梅向东马好运刘新刚王留洋李慧宁君
Owner INST OF PLANT PROTECTION CHINESE ACAD OF AGRI SCI
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