大粒横沟象Dyscerus Cribripennis Matsumura et Kono属鞘翅目象甲科。寄主植物有油橄榄、桃、苦栋、女贞等。近几年来在井岗山长古岭成为油橄榄的主要害虫。笔者经多年系统调查、饲养和防治试验,现将研究结果整理如下。一、为害情况大粒横沟象主要是以幼虫危害油橄榄。为害时先取食根颈部地表下的韧皮部及边 Large grain transverse ditch like Dyscerus Cribripennis Matsumura et Kono Coleoptera such as a branch family. Host plants are olive, peach, bitter ridge, privet and so on. In recent years in the Jinggangshan long ancient ridge become olive oil’s main pests. After many years of systematic investigation, feeding and prevention and control of the author, the research results are summarized below. First, the damage situation Large grain transverse ditch-like larvae are mainly endangering olive. Harm first eat root and neck under the surface of the phloem and edge