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A attractant for the predatory natural enemy of the rice planthopper, the black-shouldered green bug

A technology of the black-shouldered green stink bug and rice planthopper, which can be applied in the directions of attractants, biocides, animal repellents, etc., can solve the problems of spreading rice viruses, economic losses, and rice looping, and protect the ecological environment. , reduce usage, make simple effects

Active Publication Date: 2021-06-29
INST OF PLANT PROTECTION FAAS
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Especially when rice brown planthoppers and white-backed planthoppers break out, they often cause rice to "step in circles", resulting in reduced rice production, and in severe cases, even crop failure. In addition, rice planthoppers can also spread rice viruses. In short, rice planthoppers occur in my country. The damage is extremely serious, often causing major economic losses, and is one of the major threats to my country's rice grain safety production

Method used

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  • A attractant for the predatory natural enemy of the rice planthopper, the black-shouldered green bug
  • A attractant for the predatory natural enemy of the rice planthopper, the black-shouldered green bug
  • A attractant for the predatory natural enemy of the rice planthopper, the black-shouldered green bug

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0021] Using a self-made Y-shaped insect tendency measuring device, using petroleum ether solvent as a control, using 100 adults of Lygus chinensis each time, respectively measuring α-pinene, limonene, octadecane, n-nonadecane, and salicylic acid Attractive effects of 8 volatile compounds, methyl ester, linalool, trans-2-hexenal, and β-caryophyllene, on adults of Lygus stigmata black-shouldered at different concentrations. 24-hour investigation of the black-shouldered black-shouldered insects in containers treated with each attractant. The results showed that the indoor attraction rate of the 8 compounds with different concentrations to the adults of Lygus scapularis reached 70-88%, and the attracting effect was very obvious (Table 1).

[0022] Table 1 Attractive effects of different compounds on adults of Lygus spp.

[0023]

Embodiment 2

[0025] Preparation of a trapping agent for the predatory natural enemy of rice planthopper, Lygus spp.: Accurately weigh α-pinene, limonene, octadecane, n-nonadecane, and methyl salicylate with a ten thousandth electronic balance 8 compounds of ester, linalool, trans-2-hexenal, and β-caryophyllene, the weight ratio of the 8 compounds is 15:8:8:8:8:0.1:1.45:1.45; As a solvent, it is prepared into a solution with a concentration of 50 μg / ml. Use natural rubber as a carrier, inject 0.1 ml of attractant solution into the rubber carrier to make attractant lures, make each lure contain 5 micrograms of active ingredients in the attractant, seal and store at 0-4°C environmental conditions.

Embodiment 3

[0027] Preparation of a trapping agent for the predatory natural enemy of rice planthopper, Lygus spp.: Accurately weigh α-pinene, limonene, octadecane, n-nonadecane, and methyl salicylate with a ten thousandth electronic balance 8 compounds of ester, linalool, trans-2-hexenal, and β-caryophyllene, the weight ratio of the 8 compounds is 22.5: 12: 10: 10: 14: 0.5: 3: 3; petroleum ether is used as Solvent, prepared into a solution with a concentration of 75 μg / ml. Use natural rubber as a carrier, inject 0.1 ml of attractant solution into the rubber carrier to make attractant lures, make each lure contain 7.5 micrograms of active ingredients in the attractant, seal and store at 0-4°C condition.

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Abstract

The invention discloses a trapping agent for the predatory natural enemy of the rice planthopper, the green Lygus stigmata. The attractant includes the following raw material components based on the weight ratio of active ingredients: α-pinene: limonene: octadecane: n-nonadecane: methyl salicylate: linalool: trans-2-hexenal ;β-caryophyllene=15~30: 8~16: 8~12: 8~12: 8~20: 0.1~1: 1.45~4.5: 1.45~4.5 A kind of predatory natural enemy of rice planthopper of the present invention, black shoulder green The trapping agent for Lygus is based on the olfactory mechanism of Lygus black-shouldered to specific chemical substances, and has a significant directional trapping effect on Lygus black-shouldered. The predation control effect of stink bugs on rice planthopper eggs is used to implement biological control of rice planthoppers. The attractant has good attracting effect and long-lasting effect, can significantly reduce the occurrence of rice planthoppers, and has the advantages of high efficiency, greenness, and environmental protection.

Description

technical field [0001] The invention belongs to the technical field of biological control of agricultural pests, and in particular relates to a trapping agent for the predatory natural enemy of rice planthopper, the green Lygus black-shouldered bug. Background technique [0002] Rice planthopper is an agricultural pest of migratory planthopper and one of the major pests of rice production. The rice planthopper that harms rice is mainly brown planthopper ( Nilaparvata lugens ), white-backed planthopper ( Sogatella furcifera ) and SBPH ( Laodelphax striatellus ). Especially when rice brown planthoppers and white-backed planthoppers break out, they often cause rice to "step in circles", resulting in reduced rice production, and in severe cases, even crop failure. In addition, rice planthoppers can also spread rice viruses. In short, rice planthoppers occur in my country. The damage is extremely serious, often causing heavy economic losses, and it is one of the major threa...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): A01N27/00A01N37/40A01N31/02A01N35/02A01N25/18A01P19/00
CPCA01N25/18A01N27/00A01N31/02A01N35/02A01N37/40
Inventor 邱良妙占志雄刘其全施龙清
Owner INST OF PLANT PROTECTION FAAS
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