Biological Control Pattern And Effect Analysis On Agricultural Insect Pests

China is an big agricultural country which has always been heavily influenced by the pest. For a long time, to prevent agricultural pests, people mainly depend on chemical pesticides, and chemical pesticides really make a certain contribution to agricultural pest control and the supply of agricultural products. However, with more and more irrational fertilization, chemical pesticides bring increasing pollution and destruction for the ecological environment. Along with the advance of economy and technology, the whole society pay more and more attention to the problem of environmental protection, the use of traditional chemical pesticides dosage around the world declines year by year. On the other hand, compared to traditional chemical pesticides control, biological pesticides control, safe to human, comes from nature, and has a high compatibility with the environment and extensive source, so the world is raising a hot wave of biological pesticide development. The development of biological pesticide and other biological pesticide products has a strong relationship between China’s ecological environment, people’s health and economic and social sustainable development.However, at present, due to various reasons such as technology, biological pesticide control is generally in inferior position in the market competition, the government must give some support from long-term point of view, to promote the biological pesticide industry from the angle of national economy and people’s livelihood. Based on the summarization of existing prevention and control models of agricultural pests in our country, the article analyses the mode and effect of biological pesticides control, and further put forward own suggestion to promote the development of biological pesticide market better and faster from the three perspectives of government, enterprises and farmers.The paper mainly involved six parts. The first part was introduction, including the research background, significance, research purpose, method, innovation, shortcomings and so on. The second part was theoretical basis and literature review. The third part was the analysis of existing agricultural pest control pattern. Mainly from four aspects:chemical control, agricultural control, physical control, biological control, and pointed out the future direction of China’s agricultural pest control. The fourth part analyzed the fruit tree biological pesticide control mode in detail from the perspective of biological pesticide control, including its classification and comparison with traditional chemical pesticides by the means of SWOT analysis. The fifth part evaluated the control effects of sex pheromone through field experiments, and further made an experiment to compare different biological pesticide control effects. Based on the analysis above, the sixth part put forward related suggestions to promote the development of biological control pattern in our country.