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Method for releasing trichogramma bees into paddy field

A technology of Trichogramma and paddy field, which is applied in the release field of Trichogramma paddy field, which can solve the problems of explosive pest damage, weak viability of bee bodies, and low reproduction number.

Inactive Publication Date: 2013-01-02
HUNAN RICE RES INST +1
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  • Summary
  • Abstract
  • Description
  • Claims
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AI Technical Summary

Problems solved by technology

[0003] The technical problem to be solved in the present invention is to provide a practical and specific release method of Trichogramma in the field to effectively prevent and control the secondary insects in rice fields, aiming at problems such as low reproductive number of Trichogramma in the field, explosive damage by pests, and weak viability of the bee body. Pests such as stem borer, rice leaf roller, rice borer, rice budworm and armyworm, reduce the base of borers in rice fields, and reduce the dependence on chemical agents

Method used

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Experimental program
Comparison scheme
Effect test

Embodiment 1

[0020] The release of Trichogrammas in paddy fields is generally selected on cloudy or sunny days, and bees should not be released on rainy days. Trichogramma has the characteristics of being light-loving and eclosion in the morning, and is active during the day and quiet at night. Trichogramma can fully emerge in 1-3 days after release, and the emergence time will be shortened in high temperature period. After 4-5 days of Trichogramma parasitism, the parasitized eggs are in a black state. Investigate 5 points per mu, and investigate 20-30 plants at each point to calculate the number of parasitic eggs per plant and calculate the Trichogramma in the field. Quantity, and estimated the emergence rate of Trichogramma according to the climate conditions at that time, to provide a basis for the next release of Trichogramma.

[0021] The specific release includes the following steps:

[0022] (1) Low-volume reproduction and release: During the tillering stage of rice, when the tota...

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Abstract

The invention discloses a method for releasing trichogramma bees into a paddy field. The method comprises the steps of low-amount reproduction release, dynamic pest control release and later-period efficiency retention release. According to the method, the field reproduction amount of the trichogramma bees is increased, the vitality of trichogramma bee bodies is improved, the problems of low field reproduction amount of the trichogramma bees, explosive pest damage and poor vitality of the trichogramma bee bodies and the like are solved, the base number of stem borers in the paddy field is reduced, and the dependence on chemical agents is reduced. Therefore, the method is an indispensable green environment-friendly prevention and control method in production of organic paddy rice.

Description

technical field [0001] The invention belongs to the field of disease and insect pest control in rice fields, and in particular relates to a method for releasing Trichogramma in rice fields. Background technique [0002] Trichogramma is a parasitic insect belonging to the genus Trichogramma of the order Hymenoptera. Because its single and compound eyes are red, it is called Trichogramma. Trichogramma adult body length is only 0.3-1.0mm, generally yellow or yellowish brown, most of the female wasps and drones through mating activities in the host to complete the reproduction of offspring. The research on Trichogramma began in the 1930s and entered a period of rapid development in the late 1960s. In 1977, Nagaratti and Nagaraja recorded 36 species of bees in the world. In 1990, according to Lin Naiquan’s research, there may be more than 90 species in China. Trichogramma. The application of Trichogramma also began in the 1960s. From 1954 to 1955, Guangxi successively carried ...

Claims

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Application Information

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IPC IPC(8): A01K67/033A01M99/00
Inventor 张玉烛刘洋
Owner HUNAN RICE RES INST
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