槐树三刺角蝉生物学特性及防治

Bionomics and control of Tricentrus sophorae Yuan et Yan.

槐树三刺角蝉 Tricentrussophorae Yuan et Yan是国槐上发现的新害虫 ,在山东商河 1年发生 2代 ,以卵在国槐枝条内越冬。本文报道了该虫的生活史、生活习性、活动规律及发生与环境的关系。用 10 %高效氯氰菊酯 2 0 0 0 ,30 0 0倍稀释液和甲基 16 0 5的 10 0 0倍稀释液喷雾防治 ,若虫死亡率达 10 0 %。

Tricentrus sophorae Yuan et Yan was a newly found species damaging Sophora japonica L., S.japonica f. pendula Lond., Robinia pseudoacacia L. and Amorpha fruticosa L. in Shanghe County, Shandong Province,China. The biology was studied from 1997 to 1998 in Shanghe County. There are two generations for one year. Its eggs overwinter in twig of Sophora japonica L. In the present paper, the life history and habit of the pest are recorded, the relationships to ants, aphids, natural enemy, light temperature, forest canopy density etc are discussed, and the chemical control methods against the pest are also proposed.