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Group breeding techniques allow cotton bollworms to "coexist peacefully"
The bollworms have the habit of killing each other. When they come together, they will fight each other until one side is eaten by the other. The research team led by Dr. Qin Qilian of the Animal Institute of the Chinese Academy of Sciences has finally allowed the cotton bollworm “men†to coexist peacefully by improving artificial diets, increasing palatability, and improving feeding conditions. The Institute of Animal Sciences of the Chinese Academy of Sciences released this news today. Insect viruses belong to microorganisms and are to be biologically infected by viruses that infect living insects. First of all, a large number of living insects should be cultivated in the factory building until they grow to an appropriate size and then become infected with a virus disease. Then the dead body was collected. After isolation and purification, insect viruses are obtained and processed into virus insecticides. In the past, bollworms could not be bred in groups, which resulted in low production efficiency and high costs. New technologies have increased the production scale and efficiency of viral pesticides by more than 10 times. According to the current annual production capacity of two tons and 500 billion virus units per gram, it can supply 10 million mu of farmland without pollution control and reduce the pollution of 500-1,000 tons of chemical pesticides to the environment. The breakthrough of the bollworm group breeding technology is of great significance to the production of biological pesticides and solves the bottleneck problem of limiting the industrial production of cotton bollworm insecticides. Insect virus insecticides are an important class of biological pesticides. Compared with traditional chemical pesticides, humans and animals are safe, do not pollute the environment, and do not harm natural enemies. Pests do not develop resistance. In the field, a large area of ​​virus disease is caused by pests, which is a typical green environment-friendly pesticide. In addition, the researchers also obtained high levels of the original drug of the cotton bollworm virus. In the production process of virus insecticides, the virus is extracted from dead corpses. The conventional method can only obtain about 20 billion virus units per gram of product; researchers use a unique extraction process to greatly increase the purity of the virus. The content is as high as 500 billion virus units per gram. One gram of the original drug can be processed into a virus insecticide that controls 5 acres of farmland pests. The biopesticides produced using this result were first approved by the National Development and Reform Commission for production.