建宁杉奕刺蛾发生规律及防治对策初探

Phlossa jianningana Yang et Jiang Occurrence Law and Control Countermeasures

对建宁杉奕刺蛾的生物学特性、发生规律进行调查,结果表明该虫在人工杉木纯林、山谷、立地条件好长势旺盛的杉木林中危害较重;并对其发生原因进行分析,提出相应的防治对策:冬季浅翻覆土,清除落叶层可显著减少成虫羽化出土,在低龄幼虫期采用森得保生物杀虫剂进行机动喷粉防治,可大幅度降低幼虫的虫口密度。

Through investigating the biological characteristics and occurrence characteristics of Phlossa jianningana Yang et Jiang,the fir woodland slug pest harmed seriously in the artificial fir plantations,valleys,and the good site conditions of fir forest;and it analysed its causes,put forward the corresponding control measures,shallow capsized soil in winter,clearing the deciduous layer could significantly reduce eclosion and being unearthed,Sendebon biological pesticides motorized the duster prevention in young larvae period,could significantly reduce the population density of larvae.