Type of biological control

Using parasitic natural enemies

There are mainly parasitic wasps and parasitic flies. The most common ones are Trichogramma, parasitic flies, and other pests such as pine caterpillars. The swollen leg bees control the beetles, and the horned bees control the pine cones.

Microbial control

Commonly used are fungi, bacteria, viruses and antibiotics that can secrete antibiotics, such as the application of Beauveria bassiana to control Dendrolimus punctatus (fungus), various variants of Bacillus thuringiensis to control a variety of forest pests (bacteria), crude virus extract Prevention and control of cypress moth, pine caterpillar, paulownia moth (virus), 5406 control seedling blight (actinomycetes) microsporidia control gypsy moth and other larvae (protozoa), Taishan No. 1 control Tianniu (nematode) .

Using predatory natural enemies

There are many such natural enemies, mainly insectivore, rat vertebrate and predatory arthropods. Birds have different insect states such as tits, gray tits, and woodpeckers that prey on pests. Natural enemies of rats such as scutellaria, owls, snakes, etc., predatory natural enemies in arthropods include insects, cockroaches, ants and other insects, as well as spiders and mites.

Tillage control

Farming control is to change the agricultural environment and reduce the occurrence of harmful organisms. Sterile insect control is the collection or cultivation of a large number of harmful insects, using gamma rays or chemical sterilants to make them sterile, and then releasing them to mate with wild pests, so that their offspring lose their ability to reproduce. This method was used in Florida to eliminate the sheep fly. Genetic control is to reduce the vitality of their offspring by changing the genetic components of harmful insects, reducing fertility or genetic infertility. In addition, the use of some biological hormones or other metabolites to make certain harmful insects lose their ability to reproduce is also an effective measure for biological control. The use of biological control of pests and diseases does not pollute the environment, does not affect human health and has broad prospects for development.