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Method for preventing and treating vegetable noctuid using attractant for spreading virus

An attractant and virus technology, applied in the field of vegetable pest control, can solve the problems of pesticide resistance of harmful organisms, long residual effect period of pesticides, large amount of virus pesticides, etc. natural pop effect

Inactive Publication Date: 2009-08-12
SHANGHAI ACAD OF AGRI SCI
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, after people have used chemical pesticides in large quantities for a long time, a series of problems have arisen: long-term use of the same or the same type of pesticides has caused pests to develop resistance, secondary pests have risen to major pests, and pests are rampant again; Medium to high toxicity or even highly toxic pesticides have a long residual period, causing pesticide residues and environmental pollution problems, etc.
In the past, the field application of insect viruses was often aimed at contemporary pests, and most of them were direct spraying of viral pesticides. Direct spraying of viral pesticides requires a large amount of pesticides and high costs

Method used

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  • Method for preventing and treating vegetable noctuid using attractant for spreading virus
  • Method for preventing and treating vegetable noctuid using attractant for spreading virus
  • Method for preventing and treating vegetable noctuid using attractant for spreading virus

Examples

Experimental program
Comparison scheme
Effect test

Embodiment

[0020] a. Material selection

[0021] Nuclear polyhedrosis virus: take 10 grams of dead moth pests and add 3 times of sterile water to dilute, grind twice with a mortar, filter with 2 layers of gauze, and take the filtrate for later use; take out the filtrate and dilute with distilled water at 1:10, The mixture was first centrifuged at 3200r / min for 30 minutes, the supernatant was discarded, and the precipitate was completely suspended by adding 0.1% neutral detergent, centrifuged at a low speed of 400r / min for 4 minutes, the supernatant was taken, washed and centrifuged twice to obtain The pure nuclear polyhedrosis virus is fixed to volume with 1000ml of water to obtain mother liquor and made into suspoemulsion for later use.

[0022] Sex lure: Use noctuid moth attractant lure core.

[0023] b. Virus transmission

[0024] Carry out in plastic green vegetable greenhouses, choose the water basin trap produced by Zhejiang Ningbo Newcomb Biotechnology Co., Ltd.; dilute the moth...

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Abstract

The present invention discloses a method for preventing vegetable noctuid through propagating virus by attractant. According to the method, a noctuid attractant is used for inducing the imago to carry and propagate the nuclear polyhedrosis virus so that the virus propagates vertically and horizontally in the host group. The progeny larvae falls ill and dies after the female which copulates with the virus-taking male or the female carrying the virus spawns. The method of the invention can promote the natural propagation of virus in the field, reduces the dosage of virus insecticide and increases the effect of insect disinfestation with virus. Compared with the currently submerged virus releasing, the method of the invention has evident advantage and has great market development potential.

Description

technical field [0001] The invention relates to a method for preventing and controlling vegetable pests, in particular to a method for preventing and controlling vegetable armyworms by using an attractant to spread viruses. Background technique [0002] Noctuidae pests are polyphagous and gluttonous pests, which damage a variety of plants such as Brassicaceae, Solanaceae, Cucurbitaceae, Legumes and other vegetables, and are widely distributed in my country, with many generations occurring in one year. In recent years, the frequency of outbreaks has increased significantly, the area of ​​outbreaks has expanded year by year, and the damage has become increasingly serious. [0003] For a long time, in order to ensure the yield, farmers have mainly adopted chemical control methods for the prevention and control of vegetable pests such as beet armyworm and Spodoptera litura. Chemical pesticides have the advantages of quick effect, simple implementation, large-scale application, ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): A01M1/02A01M1/20A01N63/02
Inventor 蒋杰贤季香云
Owner SHANGHAI ACAD OF AGRI SCI
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