务川县直纹稻弄蝶的发生规律及防治技术

近年,直纹稻弄蝶在务川县呈现出加重为害趋势,笔者经过多年调查研究,摸清了该虫在务川县发生为害规律,结合其幼虫为害特点,提出了清除越冬寄主、人工摘除虫苞、保护天敌的农业防治,安装杀虫灯、开展稻田养鸭、养鱼等物理防控、选用生物农药防治保护天敌等生物防治,选用低毒高效化学农药防治的综合措施.

Occurrence Regultation and Control Techniues of Parnara guttata Bremer et Grey.in Wuchuan

Parnara guttata Bremer et Crey. became main pest for crops in Wuchuang recent years, from author＇s practice, oc- currence regulation of Parnara guttata Brerner et Grey. was mastered, combined with harm characteristics, finally proposed agricultural control such as clear host, manual topping, protect natural enemy, physical methods such as install pest--killing lamp, raise ducks and fish in paddy field, bio--control methods such as application of biochemical pesticide, and integrate control measure such as application of low toxicity and high efficient pestside.