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Method for continuously releasing parasitic natural enemy insects

A natural enemy insect and parasitic technology, which is applied in the field of biological agricultural and forestry pest control, can solve the problem of high cost, save biological control costs, prolong the control time, and enhance the control effect.

Inactive Publication Date: 2012-08-15
JILIN AGRICULTURAL UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

This type of method is more effective for the same age of pests, but for the situation of mixed ages, severe generation alternation, or relatively hidden control objects, one-time submersion to release natural enemies of pupae parasitic and egg parasitic, etc., can only kill For pests in the corresponding state or in the exposed state, the population of natural enemies will shrink rapidly after release due to the lack of hosts, while the pests in non-target state are not affected, and the pest population can be restored in a short time; at the same time, the control method of submerged release The method requires multi-party coordination of biological control production departments, local promotion departments, and end users. If multiple submerged releases are performed, the cost will be high

Method used

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  • Method for continuously releasing parasitic natural enemy insects
  • Method for continuously releasing parasitic natural enemy insects
  • Method for continuously releasing parasitic natural enemy insects

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0019] according to figure 1 , figure 2 As shown, in the release device of the present invention, the release cylinder 1 is a transparent shell structure, and its cross section is a regular octagon. The two ends of the release cylinder 1 are respectively a detachable solid cover 6 and a net cover 8. The middle part of the tube 1 is provided with a mesh partition 7; the mesh diameter of the mesh partition 7 and the mesh cover 8 is between the diameter of the natural enemy and the intermediate host body, the natural enemy can pass through after eclosion, and the unparasitized intermediate host is isolated after eclosion.

[0020] according to figure 2 As shown, a protective cover 2 can also be provided outside the release cylinder 1, the protective cover 2 is provided with a hanging hook 9, the release cylinder 1 is placed in the protective cover 2, and the protective cover 2 is a hollow cylinder of light-colored opaque material, which can It is rain-proof and sun-proof, and...

Embodiment 2

[0023] Using Tenebrio molitor pupae as an intermediate host to release Bacteria zhouii

[0024] A number of release points are arranged in the prevention and control area. The release point is selected at a place with high relative humidity. A set of release device prepared in Example 1 is installed at each point, which can be hung or placed on the ground. When installing, ensure that the release tube 1 is not exposed to direct sunlight. . Determine the number of natural enemies to be released according to the needs of prevention and control. Place the Tenebrio molitor pupae that has parasitic Chow's gnats on one side of the solid cover 6 in the release barrel 1. Before eclosion, place an equal amount of fresh non-parasitic Tenebrio molitor pupae on one side of the net cover 8. After the natural enemy emerges, it will pass through the net compartment 7 successively from the solid cover 6 side, pass through and parasitize the new Tenebrio molitor pupae, and then fly and diffuse...

Embodiment 3

[0031] Using tussah silkworm chrysalis as an intermediate host to release the wasps

[0032] A number of release points are arranged in the prevention and control area. The release point is selected at a place with high relative humidity. A set of release device prepared in Example 1 is installed at each point, which can be hung or placed on the ground. When installing, ensure that the release tube 1 is not exposed to direct sunlight. . Determine the number of natural enemies to be released according to the needs of prevention and control. Place the tussah silkworm chrysalis that has parasitized the wasp Choui on one side of the solid cover 6 in the release bucket 1. Afterwards, it will pass through the net 7 one after another from the solid cover 6 side, pass through and parasitize the new tussah chrysalis, and then fly and diffuse through the net cover 8 and enter the forest area. After the first release, the net cover 8 and the solid cover 6 are reversed, and the host resi...

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Abstract

The invention discloses a method for continuously releasing parasitic natural enemy insects, which includes distributing a plurality of release points in an area requiring control according to insect population density and control requirements, and installing a release apparatus at each point. A release cylinder of each release apparatus is in a tubular structure. A removable solid cover and a removable net cover are disposed at two ends of each release cylinder respectively. A partition net is disposed in the middle of each release cylinder. The release apparatuses for parasitic natural enemy insects are distributed in the control area, so that the natural enemy insects can be released continuously, and control time prolongation and control effect enhancement can be achieved for complex conditions of control objects, such as generation alternation, instar mixing and the like. Maintenance of populations of natural enemies is shifted to a user terminal, and easily obtained replacement hosts are used for maintenance of the populations of natural enemies, so that the intermediate procedures of control implementation are reduced, and bio-control cost is reduced. Especially, the natural enemies can be transferred to an application area in case of chemical control, so that both bio-control and chemical control can be implemented.

Description

technical field [0001] The invention discloses a method for sustainable release of parasitic natural enemy insects and provides a corresponding release device, which belongs to the technical field of prevention and control of biological agricultural and forestry pests. Background technique [0002] At present, the use of parasitic natural enemies to control agricultural and forestry pests is often carried out through monitoring and submerged release before the large-scale occurrence of pests. method and its release shell and release body and release device", etc. This method uses a certain carrier to carry the natural enemy to the release site, and the carrier is placed until the natural enemy migrates and spreads on its own. After the carrier is placed, the natural enemy will not be followed up. This type of method is more effective for the same age of pests, but for the situation of mixed ages, severe generation alternation, or relatively hidden control objects, one-time ...

Claims

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Application Information

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IPC IPC(8): A01K67/033A01M99/00
Inventor 李天昊阮长春孙光芝臧连生张俊杰王秀梅杜文梅张波刘志
Owner JILIN AGRICULTURAL UNIV
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