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A preliminary study on the biology ofCydia illutana dahuricoiana in the northeast of China |
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| Authors: | Yan Shanchun Fang Sanyang Liu Youqiao Liu Kuanyu Wang Chaomeng |
| Institution: | 1. Northeast Forestry University, China 2. Institute of Zoology Academia Sinia Beijing, China 3. Forest Protective Station of Wurjihan, China |
| Abstract: | The tortricid moths damdging Dahurian Larch (larix gmelini Rupr.)cone were surveyed 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, Jiwen and other neighbor areas. The tortricid moth was identified to beCydia illutana dahuricolana (V. I. Kuznetzov), the first recored in China. It has one generation a year, and overwinters in pupae in the eastern part of Inner Mongolia. The characteristics of the larvae and pupae are descrbed in detail, its life habit and damaging are preliminarily studied. The differences of its occurence in different areas are disscussed by combining with meteorological factors. |
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