人纹污灯蛾生物学特性及防治

Bionomics of White Tiger Moth Spilarctia subcarnea ( Walker) and Its Control

人纹污灯蛾是黑荆树的一种重要害虫。在福建南平一年发生4代,以蛹越冬,翌年3月上旬成虫开始羽化。幼虫6龄。卵期5～10天,幼虫期29～51天,蛹期越冬代153～168天,其余各代9～16天。试验表明,敌百虫,敌敌畏和溴氰菊酯对幼虫均有良好防治效果。

The white tiger moth Spilarctia subcarnea ( Walker ) is a serious pest of Acacia mearnsii in Fujian Province. This paper reports the results of our studies on the bionomics and control of this pest from 1986 to 1988.It has four generations a year and overwinters as pupa in Nanping,Fujian Province. Adult moth begin to appear in early March next year. The egg stage lasts 5-10 days. Six instars are observed in the larval development which lasts 29-51 days. The overwintering pupal stage lasts 153-168 days and the others last 9-16 days. The effective measures to control the larvae are spraying with 90% Dipterex, 80% Dichlorvos or 2.5% Deltamethrin.