黑脉粉蝶的生物学和防治

BIONOMICS AND CONTROL OF THE CEPORA CORONIS

黑脉粉蝶是阔叶十大功劳的主要害虫之一。幼虫取食嫩叶,对阔叶十大功劳造成严重损害。在广西桂林一年发生一次,以幼虫在寄主上越冬。幼虫期11龄,生活长达280—320天。试验结果表明,80％敌敌畏乳剂1500—2000倍液或40％水胺硫磷乳油2000倍液对幼虫均有良好的防治效果。

Cepora coronis Cramer is one of the most important pests of the Mahonia leveileana Schneid. The larvae feed on the tender leaves and cause injury to Mahonia leveileana shrubs. It has one generation each year in Guilin, Guangxi. The larvae pass winter on the host.There are eleven instors.The larva stage is as long as 280-320 days.Studies of control hove shown that it is very effective to spray with dichlorphos or dimethoate in the control of 2nd-4th instar larvae.