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Method for controlling thrip pests by combining pheromones with predators

A technology of pheromone and thrips, which is applied in the fields of catching or killing insect devices, pest control, botanical equipment and methods, etc. The effect of reducing the damage rate

Active Publication Date: 2017-05-24
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] Embodiment 1: indoor test

[0014] 1) Take 3 pots of tomato plants grown indoors, labeled as No. 1, No. 2, and No. 3 respectively. Cover the tomato plants with insect-proof nets and place them in the laboratory. Picked on the leaves of tomato plants in No. 1, 2, and 3 pots, and each of No. 1, 2, and 3 tomato plant leaves, and then waited to eat for 24 hours to investigate the results. The experiment was repeated three times, and the releases of the southern flower bugs each time must be of the same age and individuals with little difference. Take the results of this test as CK1.

[0015] After investigating the number of western flower thrips on No. 1, No. 2 and No. 3 tomato plants, the results showed that the number of Western flower thrips on the tomato leaves of No. 1 plant was 38 ± 2.8, and the number of No. No. tomato plants had 39±2.9 leaves.

Embodiment 2

[0016] Embodiment 2: indoor test

[0017] 1) Take 3 pots of tomato plants grown indoors, labeled as No. 1, No. 2, and No. 3 respectively. Cover the tomato plants with insect-proof nets and place them in the laboratory. Connect to the leaves of tomato plants in No. 1, 2 and 3 pots, and connect a lacewing to the leaves of No. 1, 2 and 3 tomato plants respectively, and observe the results after 24 hours of feeding. The experiment was repeated three times, and the lacewings released each time must be of the same age and the individuals had little difference. Take the results of this test as CK2.

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

Embodiment 3

[0019] Embodiment 3: indoor test

[0020] 1) Dissolve (R)-lavandulyl, neryl(S)-2-methylbutanoate and cis-3-hexene acetate in n-hexane according to the mass ratio of 10:20:1, and prepare a sustained-release carrier solution with a certain concentration. Add 0.5 mg of antioxidant 2,6-di-tert-butyl-p-cresol and ultraviolet light absorber 2-hydroxy-4-methoxybenzophenone, seal them in polyvinyl chloride bags, and put them in 0- Store in 4°C refrigerator for later use.

[0021] 2) Take 3 pots of tomato plants grown indoors, labeled as No. 1, No. 2, and No. 3 respectively. Cover the tomato plants with insect-proof nets and place them in the laboratory. Connect on the leaves of tomato plants in No. 1, 2 and 3 pots, and connect a southern flower bug on the leaves of No. 1, 2 and 3 tomato plants. At the same time, hang the compound slow-release carrier containing thrips aggregation pheromone and green leaf odor 3 cm above the tomato plants, and observe the results after 24 hours of in...

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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 in particular relates to a method for jointly controlling thrips pests by utilizing pheromones and predatory natural enemies. Background technique [0002] Thrips is a general term for insects of the order Thysanoptera. The insects are small and often hide in flowers and young leaves to cause damage. At present, there are more than 7,700 species of thistles recorded in the world, and China accounts for more than 570 species [Majid et al., 2011; Mound et al., 2014]. So far, there are more than 2,000 species of Thrips family recorded in the world, belonging to about 276 genera in 4 subfamilies, and 315 species in 79 genera in China [Hu Qingling, 2013]. Thrips have strong reproductive capacity, serious generation overlap, and high outbreak frequency. Global trade and climate warming have accelerated the spread and damage of thrips pests. Thrips pests have gradually become one ...

Claims

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Application Information

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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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