臭椿沟眶象生物学特性与防治

Bionomics and control of Eucryptorrhynchus brandti

臭椿沟眶象Ｅｕｃｒｙｐｔｏｒｒｈｙｎｃｈｕｓｂｒａｎｄｔｉ（Ｈａｒｏｌｄ）在莱州市大山林场１年１代，以幼虫和成虫两种虫态越冬，各虫期发育不整齐。主要以幼虫危害臭椿树干，成虫有补充营养习性，可造成轻度危害。该虫的发生与林分状况、光照有很大关系。防治方法为林分抚育管理、保护天敌、人工捕杀、饵木诱杀、挖捕虫沟、ＤＤＶ乳油涂环和喷雾、虫孔注入灭幼脲３ 号等。

Eucryptorrhynchus brandti (Harold)has one generation a year in Dashan Forest Farm of Laizhou County and overwinters as larvae and adults.The larvae damage the trunks of Ailanthus altissima and the adults can cause light harm on trees when feed on nutrition.The stand condition and illumination have great influence on the outbreak.