1. The important characteristic of insect viruses in pest control is that their specificity to the host is an ideal control method in the integrated prevention and control system. Selecting and controlling pests (not all killing) has the potential to benefit insects in the entire ecosystem. It is used. Viral pesticides participate in bio-control is a means of ecological remediation. The purpose is not to completely eliminate pests but to control the number of host insect pests on which the natural enemies depend to control below the allowable level of economic threshold to restore the benign ecological cycle of farmland and finally obtain the maximum benefit.
2. The greatest benefit of using a virus insecticide to control pests is that the target field where the virus insecticide is sprayed not only has an infectious pathogenic effect on contemporary target pests but also passes on the feces, adult, eggs and dead larvae of susceptible larvae. Such infectious diseases as the next-generation larvae proliferate in host populations and even spread to form epidemics, leaving target hosts at low levels for several years.
3. Viral insecticides have the advantages that general biological pesticides do not pollute the environment and do not harm natural enemies, and they are not easily resistant to humans and livestock. In addition, recent studies have shown that the virus has a certain “weakening†effect on host insects, which can reduce the ability of infected hosts to fly, reduce the amount of eggs laid and hatching rate, and degrade other physiological functions. As a result, the natural mortality rate increases, and resistance to some pesticides is also obvious. It is advantageous to reduce this comprehensive control of pests.
4. People have fully realized that the protection of the ecological environment and the sustainable development of agriculture have become the two major issues facing humanity in the 21st century. The core connotation and basic features of biological control are its compatibility with the ecological environment and sustainable development. The unity. Biological control is the inevitable advancement of human society's advancement of science and technology. Insect insecticide is a powerful weapon for modern agricultural engineering that meets the requirements and development of the times and targets organic foods.
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