梨木虱属同翅目木虱科,体形象蝉,是危害梨树的主要虫害之一。梨木虱一般在叶脉上分蜜粘液,一个时期后,粘液变黑,并很容易感染毒污病,严重时叶片全部脱落,甚至枯死树。 梨木虱一年内可发生5代,少雨干旱年份发生严重,在防治上除作好冬季清理果园和刮老树皮外,主要掌握住几个时期 Pest is a Homoptera Hymenoptera, body cicadas, is one of the major pests damage pears. Pear psyllid insects on the veins divide the honey mucus, a period of time, mucus darkens, and is very susceptible to poisonous disease, severe leaves all fall, or even dead tree. Pear lice can occur within a year 5 generations, less severe drought years, in addition to prevention and control in addition to winter cleaning the orchard and shaving the old bark, the main control of several periods