摘要
栗叶瘤丝螟是福建省锥栗林的重要害虫之一，在福建闽北１ａ发生２代，以老熟幼虫在浅土中结茧越冬．卵期５～９ｄ，幼虫期第１代３３～４７ｄ，第２代２３６～２８３ｄ，蛹期１３～２８ｄ，成虫寿命３～５ｄ．每雌产卵量４６～８７粒．试验表明，１０％氯氰菊酯２０００倍液＋苏云金杆菌５００亿孢子／Ｌ＋白僵菌５亿孢子／Ｌ混合剂或者１０％氯氰菊酯２０００倍液或者８０％敌敌畏１０００倍液对该虫均有良好防治效果．
The chestmut pyrailid Orthaga achtina Butler is a major pest of Castanea henryi in Fujian It had two generations each year and lives through the winter as old larvae inside cocoons in the soil The egg stage lasts for five to nine days The first generation larvae lasts 33 to 47 days and the second generation larvae lasts 236 to 283 days The pupal stage lasts for 13 to 28 days The life of adult lasts three to five days Each female deposits 46 to 87 eggs The control experiment showed that spraying with the mixture of Bt50 billion spores/L and 10% Permethrin (1∶2000) and Bb0 5 billion spores/L, or 10% Permethrin (1∶2000) or 80% DDVP (1∶1000) were effective to control the larvae
出处
《福建林学院学报》
CSCD
1999年第3期238-241,共4页
Journal of Fujian College of Forestry
基金
南平市科委资助
关键词
栗叶瘤丛螟
生物学特性
防治
锥栗
Orthaga achatina Butler,bionomics,control,Castanea henryi
