Device and method for protecting natural enemies of pests on sticky traps for thrips

Abstract

The invention relates to a device and a method for protecting natural enemies of pests on sticky traps for thrips. The device comprises two symmetrical gauze frames (1) and barrier gauze (2), and thebarrier gauze is fixedly connected with the gauze frames at the edges of the gauze frames. At least one connector (6) is fixedly arranged on the outer portion of the upper side wall of each gauze frame, and the gauze frames are hinged with each other through the connectors (6). Sticky trap clips (3) are arranged in the upper side walls of the gauze frames. Drug storage boxes (4) for accommodatingattractants are fixedly arranged in the lower side walls of the gauze frames. A hanging rope (7) used for hanging the whole device is arranged on the outer portions of the upper side walls of the gauze frames. The device and the method have the advantages that natural enemy insects are remarkably protected from being trapped, the thrip attractants in the device can effectively improve the trappingrate of the thrips, and the working efficiency is improved.

Description

technical field [0001] The invention belongs to the technical field of insect natural enemy protection device structure and use method, and specifically refers to the natural enemy protection device specially used for trapping insects such as thrips and the technical field of use method. Background technique [0002] Thrips is a general term for Thysanoptera pests, and it is an important pest on crops such as vegetables and flowers, and it is distributed all over the world. Thrips are mostly herbivorous pests. Adults and nymphs can gather on the petals, stamens, and backs of leaves to feed on plant juices. After the plants are damaged, white spots with black spots appear first, and the spots gradually turn brown later. In severe cases, flowers and leaves will curl and wilt, affecting the ornamental quality of flowers. At the same time, some thrips can transmit a variety of plant viruses including tomato spotted wilt virus (TSWV), causing more serious damage. [0003] The p...

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Problems solved by technology

[0003] The prevention and control of thrips has attracted much attention. As the most important method for the prevention and treatment of thrips pests, chemical control mainly uses chlorpyrifos, imidacloprid, emamectin benzoate, methomyl, etc.; Thrips have developed resistance to a variety of insecticides, and the rapid development of resistance has brought great obstacles to the control of western flower thrips

Trapping and killing thrips with sticky boards mainly makes use of the thrips' tendency to color, which is a widely used method in addition to chemical control. However, there is a serious problem in the existing technology of trapping and killing thrips with sticky boards Existence, that is, when using sticky boards to trap and kill thrips, it is impossible to make a selection for other insects, resulting in a large number of natural enemy insects, such as the natural enemies of thrips stinkbugs, ladybugs, lacewings, etc., and the natural enemies of aphids and whitefly parasitoids, etc. Killed by mistake, sometimes even stuck to animals such as birds

At present, domestic and foreign studies have reported that the use of trapping pheromones on sticky boards can significantly increase the number of trapping thrips, and related patents have also been invented for this, but it still cannot solve the problem of protecting natural enemies from sticky boards. Affect the trapping problems, because it is directly used on the sticky insect board, the duration of effect is short, and it is very inconvenient to add and use

For other comparatively large-scale agricultural pests, there are corresponding trapping insecticidal devices, such as fruit fly trap lamps, grape fruit moth insecticidal devices, etc., but there is no device that can kill thrips and protect natural enemies; moreover, When installing sticky boards in the wild, a large number of sticky boards are still used for fixing, but the operation is cumbersome when fixing, and it is difficult to achieve repeated recycling

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