横沟象Dyscerus sp.是厚朴Magnolia officinalis和凹叶厚朴M.biloba的毁灭性新害虫,在浙江省龙泉、景宁、松阳等县市的厚朴产区造成严重损失.本文首次报道其对厚朴的危害及其防治方法.

The weevil,Dyscerussp.is an extinctive pest of officinal magnolia.lt causes heavy Iosses of Magnolia officinalis in producing area such as Longquan city,Jingning and Songyang county of Zhejiang Province.The present paper report for the first time,its harmful effect and method of its prevention and control.