栗雪片象生物学特性及防治试验  

Biological Characters of Snowflake Weevil of Chestnut and the ControlTest

作　　者：雷鸣宇 

机构地区：[1]陕西省商洛地区林特站

出　　处：《经济林研究》1994年第2期46-49,共4页Non-wood Forest Research

摘　　要：栗雪片象１年发生１代，幼虫在残留栗棚中潜伏越冬。每年７、８两月中旬是成、幼虫危害高峰期。采用５种农药作防治对比试验，表明以４０％氧化乐果２０００倍液和９５％敌百虫１０００倍液防效最佳。The snowflake weevil of chestnut,Niphades castanea Chao,is a pest damagingboth the twigs and the nut.The generation occurs once a year.The larvae overwinter by hidingin the surviving canopy of the chestnut tree,The imagoes and the larvae reach the peak ofdamage from mid July to mid August.In a control test against this pest ,five pesticides wereapplied. Comparatively,two of them proved good and effective , which are 40%oxidized Rogorwith 2000 times of diluent and 95%dipterex with l000 times of diluent.

关 键 词：栗雪片象 生物学特性 防治试验 板栗 

分 类 号：S436.64[农业科学—农业昆虫与害虫防治]