珠绵蚧为害花生、大豆严重珠绵蚧在山东省单县过去为１种次要地下害虫，防治上一直没有引起人们的注意，１９９７年为害花生、大豆严重。珠绵蚧在我县每年发生１代，以珠形体在土中越冬。翌年５月上、中旬为雌、雄虫脱壳盛期，同时交配，５月下旬至６月初为产卵盛期，６月... Peanut pest damage peanut, soybean serious pearl moss in Shan County, Shandong Province in the past as a secondary underground pests, prevention and control has been caused by people’s attention, pests in 1997 pests, soybean serious. Beads mealybug occurs in our county for 1 generation each year, with the shape of beads overwintering in the soil. The following year in May, the middle of the female, male shelling peak, at the same time mating, late May to early June spawning peak, June ...