A PRELIMINARY STUDY ON THE BIOLOGY OF CYDIA ILLUTANA DAHURICOLANA IN THE NORTHEAST OF CHINA(LDPIDOPT

来源 :Journal of Northeast Forestry University | 被引量 : 0次 | 上传用户:fwaiting
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The tortricid moths damdging Dahurian Larch(larix gmelini Rupr.)cone weresurveyed in a matural larch forest in Wurjihan in the eastern parrt of Inner Mongolia,China from 1988 to 1989,and the population dynamics of the moth is investigated inKuduer.Jiwen and other neighbor areas.The tortricid moth was identified to be Cydiaillutana dahuricolana(V.I.Kuznetzov),the first recored in China.It has one generation ayear,and overwinters in pupae in the eastern part of Inner Mongolia.The characteristics ofthe larvae and pupae are descrbed in detail,its life habit and damaging are preliminarilystudied.The differences of its occurence in different areas are disscussed by combining withmeteorological factors. The tortricid moths damdging Dahurian Larch (larix gmelini Rupr.) Cone weresurveyed in a matural larch forest in Wurjihan in the eastern parrt of Inner Mongolia, China from 1988 to 1989, and the population dynamics of the moth is investigated in Kuduer. Kiwen and other neighbor areas. The tortricid moth was identified to be Cydiaillutana dahuricolana (VIKuznetzov), the first recored in China. It has one generation ayear, and overwinters in pupae in the eastern part. The characteristics of the larvae and pupae are descrbed in detail. , its life habit and damaging are preliminarily established. the differences of its occurence in different areas are disscussed by combining with meteorological factors.
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