摘要
本文首次报道栗瘿蜂Dryocosmus kuriphilus Yasumatsu在贵州铜仁的发生为害情况,详细记述栗瘿蜂的生物学特性,特别是栗瘿蜂在瘿内的生活习性。2009年4月-2010年8月调查,在铜仁市桐木坪乡卜口村栽种的366.67hm2板栗中,株被害率达100%,当年新梢被害率达41%。该虫1年发生1代,3月底至4月初虫瘿出现,5月中旬虫瘿达最大,化蛹高峰期为5月下旬;成虫羽化高峰期为6月中旬,出瘿高峰期为6月15-22日。成虫孤雌生殖,产卵栗芽内,以幼龄幼虫在栗芽内虫室越冬。大龄幼虫有极强的耐饥性和耐旱性。用粘虫胶对成虫进行防治,有较好的防效,也使天敌得到了有效保护。
This paper reports the first outbreak of Dryocosmus kuriphilus Yasumatsu in Tongren district of Guizhou Province.The research was carried out from April 2009 to August 2010.A detailed description of the bionomics of D.kuriphilus,especially its habit of living in goiters,is provided.One hundred percent of chestnut trees in a field of about 366.67 hm2were damaged,and the new shoot rate was 41%.There is one generation a year in Guizhou and goitres appeared in late March and early April.Maximum sizes and peaks occurred in the population in mid and late May,respectively.Adult emergence and peaks occurred in mid and late June,respectively.Parthenogenetic females deposited eggs in hostbuds where the hatched larvae overwintered.Older larvae had stronger resistance to starvation and greater drought tolerance.The results show that catching this pest with gum-traps was most effective,and a new method of conserving their natural enemies is described.
出处
《应用昆虫学报》
CAS
CSCD
北大核心
2011年第6期1860-1863,共4页
Chinese Journal of Applied Entomology
关键词
栗瘿蜂
生活史
防治
Dryocosmus kuriphilus
life history
prevention
