Method for biologically preventing green plant bugs by peristenus spretus in winter jujube orchard

A technology for the red-necked lygus and green ligus, which is applied in applications, hunting equipment, animal husbandry, etc., can solve problems such as the difficulty in obtaining the effect of biological control of the green ligus, and achieve cost-saving feeding, high-efficiency population size, and control Occurrence and Harmful Effects

Active Publication Date: 2014-05-07
INST OF PLANT PROTECTION CHINESE ACAD OF AGRI SCI
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, in practical application, it is found that it is difficult to achieve a good biological control effect on Lygus spp.

Method used

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  • Method for biologically preventing green plant bugs by peristenus spretus in winter jujube orchard
  • Method for biologically preventing green plant bugs by peristenus spretus in winter jujube orchard

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0019] 1. Preparation of natural enemy insects

[0020] 2-3 days after the new eclosion of the red-necked wasps, select the robust red-necked wasps, especially the number of female bees, which should account for 50% or more of the parasitoid population, and place them on a transparent plexiglass Inside the insect cage (30cm×30cm×40cm).

[0021] When the red-necked chrysalis is ready to pupate, spread 1.5-4 cm thick wet vermiculite on the bottom of the insect rearing box (13cm×13cm×14cm) (hand hold the vermiculite tightly, no water drips out), and put it on the vermiculite. The upper part raises the green Lygus parasitized by the red-necked wasp, so that the mature larvae of the red-necked wasp can freely drill out of the main body wall of the host and pupate in the vermiculite. Each insect box can hold 80-150 pupae. 7 days after the pupation of the parasitic wasp is completed, the vermiculite containing the parasitoid wasp pupae can be taken out for release.

[0022] 2. Adu...

Embodiment 2

[0030] 1. Preparation of natural enemy insects

[0031] 2-3 days after the new eclosion of the red-necked wasps, select the robust red-necked wasps, especially the number of female bees, which should account for 50% or more of the parasitoid population, and place them on a transparent plexiglass Inside the insect cage (30cm×30cm×40cm).

[0032] When the red-necked chrysalis is ready to pupate, spread 1.5-4 cm thick wet vermiculite on the bottom of the insect rearing box (13cm×13cm×14cm) (hand hold the vermiculite tightly, no water drips out), and put it on the vermiculite. The upper part raises the green Lygus parasitized by the red-necked wasp, so that the mature larvae of the red-necked wasp can freely drill out of the main body wall of the host and pupate in the vermiculite. Each insect box can hold 80-150 pupae. 7 days after the pupation of the parasitic wasp is completed, the vermiculite containing the parasitoid wasp pupae can be taken out for release.

[0033] 2. Adu...

Embodiment 3

[0041] 1. Preparation of natural enemy insects

[0042] 2-3 days after the new eclosion of the red-necked wasps, select the robust red-necked wasps, especially the number of female bees, which should account for 50% or more of the parasitoid population, and place them on a transparent plexiglass Inside the insect cage (30cm×30cm×40cm).

[0043] When the red-necked chrysalis is ready to pupate, spread 1.5-4 cm thick wet vermiculite on the bottom of the insect rearing box (13cm×13cm×14cm) (hand hold the vermiculite tightly, no water drips out), and put it on the vermiculite. The upper part raises the green Lygus parasitized by the red-necked wasp, so that the mature larvae of the red-necked wasp can freely drill out of the main body wall of the host and pupate in the vermiculite. Each insect box can hold 80-150 pupae. 7 days after the pupation of the parasitic wasp is completed, the vermiculite containing the parasitoid wasp pupae can be taken out for release.

[0044] 2. Adu...

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Abstract

The invention relates to the field of biological prevention of agricultural insects, in particular to a method for biologically preventing green plant bugs by peristenus spretus in a winter jujube orchard. The method includes the steps: starting first release in April to May in early spring, releasing bees according to the proportion 40-100:1 of the green plant bugs to female peristenus spretus, and continuously releasing peristenus spretus adults for 3-4 times at intervals of 3-6 days; releasing bee pupae according to the proportion 10-50:1 of green plant bug adults to the peristenus spretus pupae in the second to fifth generation of the green plant bugs. By the method, the cardinal number of green plant bug sources can be reduced in early spring, environments can be optimized, ecological balance is kept, the population number of the green plant bugs can be efficiently controlled for a long time by growth and reproduction of creatures in nature, and quality and yield loss of jujube trees caused by the green plant bugs is reduced.

Description

technical field [0001] The invention relates to the field of biological control of agricultural insects, in particular to a method for biological control of Lygus stinkbug by using the red-necked Braconidia spp. in winter jujube orchards. Background technique [0002] Lygus viridatus is an important pest in the production of winter jujube, which seriously damages the growth of jujube trees, the yield and quality of fruits, and greatly reduces the economic income of jujube farmers. Due to the small size of Lygus spp., the symptoms of damage in the early stage are not obvious, so jujube farmers often miss the best control period, and cause actual harm to jujube trees. For a long time, the prevention and control of Lygus spp. has been mainly based on chemical control. After the occurrence of Lygus spp., the method of spraying insecticides is often used directly to kill the pests. However, chemical control often causes environmental pollution, enhances pest resistance, reduces ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): A01M99/00A01K67/033
Inventor 罗淑萍吴孔明张峰陆宴辉
Owner INST OF PLANT PROTECTION CHINESE ACAD OF AGRI SCI
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