Issue:ISSN 2095-1353
CN 11-6020/Q
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2012年49 No.5
Life history of Monochamus alternatus Hope ( Coleoptera: Cerambycidae) in Yuyao city，Zhejiang Province
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Key Words： Monochamus alternatus，oviposition，emergence，generation，Zhejiang
Abstract： Monochamus alternatus Hope is one of the most important insect vectors of the pinewood nematode， Bursaphelenchus xylophilus． Understanding of the life history and biological characteristics ofM． alternatus is thereforevital for the effective management of the pinewood nematode． Eggs ofM． alternatus were collected every ten days fromMay to September． Stems with eggs in them were removed from the tree and placed in rearing cages after counting thenumber of oviposition holes in them．The emergence time of adults was then systemically monitored． The results show thatM． alternatus ，with a peak from late June to mid-August． In Yuyao city， more than 90% ofM． alternatus could complete one generation in one year，but some needed 2 years to finish a completelife cycle． More than 95% ofM． alternatus adults emerged in the year after oviposition by the previous generation but onlya few emerged in the following year．M． alternatus adults emerged from early May to mid-July with a peak from mid-May to mid-June．adults oviposited from early May to late August