Method for controlling rice planthopper by combination of metarhizium anisopliae and sex attractant

A technology of combined action and rice planthopper is applied in the field of prevention and control of rice pest rice planthopper to achieve the effects of promoting a virtuous cycle, having a long period of validity and reducing environmental pollution

Active Publication Date: 2019-03-29
CHONGQING ACAD OF AGRI SCI
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

At present, there are few reports on the methods of controlling rice planthoppers in the field by using entomopathogenic bacteria and sex attractants in combination

Method used

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  • Method for controlling rice planthopper by combination of metarhizium anisopliae and sex attractant
  • Method for controlling rice planthopper by combination of metarhizium anisopliae and sex attractant
  • Method for controlling rice planthopper by combination of metarhizium anisopliae and sex attractant

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Embodiment Construction

[0022] In order to make the objectives, technical solutions and advantages of the present invention clearer, the present invention is further illustrated with the following specific examples and specific test data, but the present invention is by no means limited to these examples.

[0023] The spores of Metarhizium anisopliae mentioned below all refer to the conidia of Metarhizium anisopliae, and the sex pheromones are all biomimetic compounds. In this embodiment, the method of using the combined action of insect pathogens and insect sex pheromones to control rice planthoppers is achieved through the following steps:

[0024] Step 1: Mix tetradecatriene acetate, tetradecadiene acetate, hexadecadien-2-one, and hexadecadien-2-one in a certain mass ratio as an inducer. Weigh 2mg of the attractant, then dissolve it in 50mL of n-hexane to prepare a trap, and put it on a rubber stopper as a lure, each trap contains 0.1mg of the trap;

[0025] Step 2: Put the trap obtained in step 1 into ...

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Abstract

The invention discloses a method for controlling rice planthopper by combination of metarhizium anisopliae and a sex attractant and belongs to the field of green control of rice pests. The method is achieved by the following steps: Step 1: sex pheromone is dissolved in n-hexane to prepare an attractant, and loading the attractant to a rubber stopper as the lure; the sex pheromone is a mixture of tetradecanetriene acetate, tetradecanediene acetate, hexadecatriene-2-ketone and hexadecadiene-2-ketone; Step 2: the lure in the Step 1 is placed into a trap box, and the trap box is placed in the ricefield; and Step 3: spores of metarhizium anisopliae are dispersed in the trap box for concentrated trapping and killing of rice planthoppers. The method is used for trapping and killing rice planthoppers.

Description

Technical field [0001] The invention belongs to the field of green prevention and control of rice pests; in particular, it relates to a simple, non-toxic, and efficient method for the prevention and control of rice pest NilaparvatalugensStal by utilizing the combined action of the insect pathogenic fungus Metarhizium anisopliae and an insect attractant. Background technique [0002] Nilaparvatalugens It is an important migratory pest in rice production in Asia. Due to the large-scale planting of susceptible rice, and the large-scale use of chemical fertilizers and pesticides, the initial population and growth rate of the brown planthopper have increased, resulting in a large number of damaged areas. At the same time, the rice planthopper is an r-strategy pest with extremely high Intrinsic growth rate and strong adaptability to the environment, so its characteristics of easy outbreaks and disasters and migration make chemical control of pesticides dominate the emergency control o...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): A01N63/04A01N37/02A01N35/02A01P7/04A01G13/00
CPCA01G13/00A01N35/02A01N37/02A01N63/30
Inventor 卢文才廖敦秀马连杰杭晓宁梁涛张慧余端张健胡留杰
Owner CHONGQING ACAD OF AGRI SCI
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