陕南白僵菌防治马尾松腮扁叶蜂技术

Use of Bassiana for the Control of Cephalcia pinivora Xiao et Zeng in the South of Shaanxi

马尾松腮扁叶峰是近年汉中市马尾松林成灾发生的主要虫害之一。经调查和试验,该虫在当地1a发生1代,以幼虫危害当年生嫩梢叶基部,老熟幼虫在土壤中越冬;应选择6月上中旬幼虫3龄期前后,利用生物制剂白僵菌150亿孢子·g^(-1),用量1.5kg·hm^(-2),进行喷雾或喷烟防治,达到高效、环保、持续控灾的目的。

Cephalcia pinivora Xiao et Zeng is one of the major pests attacking Pinus massoniana.The investigation showed that the pest occurred in one generation in one year with larva attacking the tender leaves of current year and adult spend over winter in soil.The control measures should be taken in early June to stage three larva by spray of Cephalcia pinivora Xiao et Zeng with 15 billion spores per gram and 1.5 kg/hm2,which would sustain a long effect on an environmentally friendly basis.