A method for joint control of thrips pests by using pheromones and predatory natural enemies

A pheromone and predatory technology, which is applied in the direction of catching or killing insects, pest control, botany equipment and methods, etc., can solve the problems of joint prevention and control of thrips without predatory natural enemies, so as to improve the quality, The effect of reducing the victimization rate

Active Publication Date: 2020-07-17
INST OF PLANT PROTECTION FAAS
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Moreover, there is no report on the combination of thrips aggregation pheromone and predatory natural enemies to control thrips.

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0013] Example 1: Indoor test

[0014] 1) Take 3 pots of tomato plants grown indoors, label them No. 1, No. 2, and No. 3, cover all the tomato plants with insect nets, and place them in the laboratory. Take 50 western flower thrips raised indoors. Connect to the leaves of tomato plants in pots 1, 2, and 3, and connect a southern flower bug to the leaves of tomato plants in Nos. 1, 2, and 3. The results will be investigated after 24 hours of feeding. The experiment was repeated three times, and each time the released southern flower bugs must be of the same age and the individuals were not much different. Take the test result as CK1.

[0015] After investigating the number of thrips in tomato plants No. 1, 2, and 3, the results showed that the number of thrips on tomato leaves of plant No. 1 was 38±2.8, and that of tomato plant No. 2 was 39±6.6. The number of tomato plant leaves is 39±2.9.

Embodiment 2

[0016] Example 2: Indoor test

[0017] 1) Take 3 pots of tomato plants grown indoors, label them No. 1, No. 2, and No. 3, cover all the tomato plants with insect nets, and place them in the laboratory. Take 50 western flower thrips raised indoors. Connect to the leaves of tomato plants in pots 1, 2, and 3, and connect a lacewing to the leaves of tomato plants in Nos. 1, 2, and 3. The results will be investigated after 24 hours of feeding. The experiment was repeated three times, and each time the released lacewings must be of the same age and similar to the individual. Take the test result as CK2.

[0018] After investigating the number of thrips in tomato plants No. 1, 2 and 3, the results showed that the number of thrips on tomato leaves of plant No. 1 was 31±3.3, and that of tomato plant No. 2 was 32±6.1. The number of tomato leaves is 33±2.0.

Embodiment 3

[0019] Example 3: Indoor test

[0020] 1) Dissolve (R)-lavandulyl, neryl(S)-2-methylbutanoate and cis-3-hexene acetate in n-hexane at a mass ratio of 10:20:1 to prepare a sustained release carrier solution of a certain concentration. And each add 0.5mg of antioxidant 2,6-di-tert-butyl-p-cresol and ultraviolet light adsorbent 2-hydroxy-4-methoxybenzophenone, seal it in a polyvinyl chloride bag, and place it in 0- 4 ℃ refrigerator for use.

[0021] 2) Take 3 pots of tomato plants grown indoors, label them No. 1, No. 2, and No. 3, cover all the tomato plants with insect nets, and place them in the laboratory. Take 50 western flower thrips raised indoors. Connect to the leaves of tomato plants in pots No. 1, 2, and 3, and connect a southern flower bug to the leaves of tomato plants in Nos. 1, 2, and 3. At the same time, hang the slow-release carrier of the compound containing thrips aggregation pheromone and green leaf smell Place 3cm above the tomato plant and investigate the result...

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PUM

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Abstract

The invention discloses a method for controlling thrip pests by combining pheromones with predators. The method includes that sustained release carriers are mainly prepared from aggregation pheromones with greenery odors serving as a synergistic component according to different ratios. During use, in a process that (R)-lavandulyl, neryl(S)-2-methylbutanoate attracts thrips to aggregate, the probabilities that the predators discover and eat thrips are increased; through addition of cis-3-hexenyl acetate, attractant rate of the thrip aggregation pheromones can be increased, stability of the pheromones can be improved and durability of the pheromones can be prolonged. Controlling experiments prove that the controlling effect when the method is adopted is enhanced by 28-45% as compared with individual application of the predators or the pheromones. The method has the advantages that chemical pesticide consumption can be reduced, damage rate of vegetables or flowers can be decreased, biological diversity and natural enemy resources can be protected, a new means of applying the pheromones to the field of pest control is developed, and an important way for developing an integrated thrip pest control technology is explored.

Description

Technical field [0001] The invention belongs to the technical field of agricultural pest control, and specifically relates to a method for jointly controlling thrips pests by using pheromones and predatory natural enemies. Background technique [0002] Thrips are the collective name of Thysanoptera insects. They are tiny and often hide in flowers and young leaves. At present, there are more than 7,700 species of thistle motor recorded in the world, and China accounts for more than 570 species [Majid et al., 2011; Mound et al., 2014]. To date, there are more than 2,000 species of Thrips recorded in the world, belonging to about 276 genera of 4 subfamilies, and 79 genera of 315 species in China [Hu Qingling, 2013]. Thrips are highly reproductive, with serious generation overlap and high frequency of outbreaks. Global trade and climate warming have accelerated the spread and damage of thrips pests. Thrips pests have gradually become one of the most important agricultural pest group...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): A01G13/00A01M1/02A01N37/02A01P19/00
CPCA01G13/00A01M1/02A01N25/02A01N37/02A01N2300/00
Inventor 魏辉田厚军陈艺欣陈勇林硕张艳璇赵建伟
Owner INST OF PLANT PROTECTION FAAS
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