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生物防治,是防治园林害虫的一个新的生物学途径,是综合防治园林害虫的重要组成部分.利用微生物农药杀虫,对人畜不易产生毒害,对园林、树木、花卉和天敌不产生药害,病原体能不断扩散,可使害虫重复感染,起到长期防治害虫的作用.微生物农药还能克服因长期大量使用化学农药后害虫产生抗性的缺点.“以菌治虫”在保护城市环境不受污染,促进各族人民身体健康方面,起着极大的贡献,所以是防治城市园林害虫的发展方向.
Biological control is a new biological approach to prevent and control garden pests and is an important part of comprehensive pest control in gardens.Using microbial pesticides to kill insects is not easy to produce poison to humans and animals and does not produce phytotoxicity to gardens, trees, flowers and natural enemies, Pathogen can continue to spread, make the pest repeats infection, play a role in long-term prevention and control of pests.Microbial pesticides can also overcome the shortcomings of pest resistance after long-term large-scale use of chemical pesticides. “To kill bacteria” in the protection of urban environment from pollution , To promote the health of people of all nationalities, plays a great contribution, it is the development direction of pest control of urban gardens.