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生物防治一般是指利用植物病虫、杂草的天敌来控制病虫、杂草危害的一项措施.由于它涉及面较广,所以要有效地使用这项措施,事前事后必须充分了解和分析病虫发生为害情况、天敌情况和维护农业生态系的正常结构等问题,它不同于化学防治法,而须注意同化学防治法和其他防治措施的协调配合.这项防治措施有它的特点和优点,主要体现在应用这项防治措施不会破坏农业生态平衡,防治效果的持续期较长,有一定的后效
Biological control generally refers to the use of plant pests, weeds natural enemies to control pests, weeds a measure of harm because of its broader coverage, so the effective use of this measure must be fully understood and analyzed beforehand It is different from the chemical control law, and should pay attention to the coordination and cooperation with the chemical control law and other prevention and control measures. The prevention measures have its characteristics and Advantages, mainly reflected in the application of this prevention and treatment measures will not undermine the ecological balance of agriculture, prevention and treatment of longer duration, have some effect