萧氏松茎象幼虫龄数的估测
Estimate of Hylobitelus xiaoi larval instars.
温小遂;施明清;匡元玉
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作者单位：江西省森林病虫害防治站,南昌330077
中文关键词：萧氏松茎象;幼虫;龄数
英文关键词：Hylobitelus xiaoi;larvae;instars
中文摘要：室内和林间调查的结果表明 ,萧氏松茎象HylobitelusxiaoiZhang幼虫期为 5～7龄。该虫在林间以老熟幼虫的前 1龄幼虫 ,即以第 4～6龄幼虫越冬 ,其中以 5～6龄幼虫为主 ,4龄幼虫仅占少数
英文摘要：Both laboratory and field observations showed that there were five to seven instras in larval stage of the weevil Hylobitelus xiaoi Zhang. The second oldest instar larvae overwinters,with most in the fifth and sixth instars,but some in the fourth i