梨木虱属园翅目,木虱科。1996、1997年在我县川口、马场垣等乡镇梨园大面积发生,引起早期落叶,严重影响果品产量及品质。在防治过程中,我们看到许多果农往往在见到树上滴水甚至叶片变色后,才开始喷药,错过了防治的关键时期,费时费工,且防效不佳。现将我县这几年梨木虱的发生与 Pest insects genus Garden, Head lice. In 1996 and 1997, a large area of ​​pear orchards occurred in towns such as Kawaguchi and Matiguan in our county, causing early deciduous leaves and severely affecting fruit yield and quality. In the prevention and treatment process, we see that many fruit growers often start spraying after they see dripping water on the trees or even discoloring their leaves. They miss the crucial period of prevention and control, spend a lot of time and effort, and have poor control effects. Now in our county in recent years the occurrence of pear psylla