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柳蛎蚧Lepidosaphe ulmi[L]同翅目,盾蚧科,是杨树的毁灭性害虫,检疫对象之一。若虫在树皮外吻吸树木汁液,集聚成片,危害严重。被害树木,表皮由绿变黄,逐变橙红色,先是树皮干裂,以后逐渐干枯,严重地抑制着树木的生长发育,多则五、六年,少则二、三年,就能使树木整株枯死,导致连片毁灭。 1、分布柳蛎蚧在台安分布很广,据一九七八年普查结果,桑林、新台、桓洞、西佛、大张、黄沙、高力、城郊等公社以及县苗圃、西平林场等地都有发生。 2、寄生柳蛎蚧是一种枝干害虫,它主要寄生在小青杨、小叶杨、北京杨、中东杨以及各种杂交系的杨树干上。
Lepidosaphe ulmi [L] Homoptera, Dioscoreaceae, is a devastating pest of poplar, one of the quarantine objects. Nymph in the bark kiss tree sucking juice, gathered into pieces, endangering. Damaged trees, the epidermis from green to yellow, gradually changing orange-red, first bark dry crack, then gradually dry, severely inhibited the growth and development of trees, as many as five or six years, from two to three years, you can make trees The whole plant died, resulting in contiguous destruction. 1, the distribution of oyster Kuwana is widely distributed in Taian, according to the results of the census of 1978, Sanlin, Xintai, Huan dong, West Buddha, Dazhang, Huangsha, Gao Li, suburbs and other communes and county nursery, Woodlands and other places have occurred. 2, Parasitizing Willow Oyster Kuwana is a kind of branch pests, it is mainly parasitic in Populus simonii, Populus simonii, Populus euphratica, Populus euphratica, poplar trunk and various hybrids.