黄星桑天牛生物学特性及防治方法刘惠芳（河北林业学校石家庄０５００６１）关键词黄星桑天牛，生物学特性，杀螟松黄星期天牛是桑、无花果等植物树种的主要蛀干害虫之一。幼虫危害严重时，林木植株生长势逐渐衰弱枯死。被害枝叶遇大风易折断，给生产造成严重损失。为此，... Biological characteristics and control methods of Morinda crenata Liu Huifang (Hebei Forestry College, Shijiazhuang 050061) Key words Morus alba, biology, fenitrothion Yellow-day Beetle is one of the main stem pests of plant species such as mulberry and fig. When the larvae are seriously endangered, the plant growth potential gradually declines and dies. Victims of branches and leaves easily break the wind, causing serious losses to production. to this end,...