50个种植者用生物控制的方法抑制白粉虱的观察表明,一般来说,使用这种方法的人越有经验,其成功率就越高。如果在8次引入粉虱匀鞭蚜小蜂(Encarsia formosa)以后,它还没有建群,则不大可能成功。两个星期打一次侧枝产生的生物控制的效果比一个星期或10天打一次侧枝所产生的效果要小。对于品种“Sonatine”和“Eurocross BB”上的白粉虱 The observation by 50 growers of a biocontrol approach to suppress whiteflies shows that, in general, the more experienced the person who uses this method, the higher the success rate. It would not be possible to succeed if the Encarsia formosa was introduced eight times before it was colonized. The biological control produced by the collateral for two weeks is less effective than the collateral for a week or 10 days. For whitefly on the species “Sonatine” and “Eurocross BB”