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浙江省余姚地区松褐天牛的生活世代
Life history of Monochamus alternatus Hope ( Coleoptera: Cerambycidae) in Yuyao city,Zhejiang Province
柳建定1,李百万1,王菊英1,赵宝安1,舒金平2**
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作者单位:1浙江省余姚市森林病虫防治检疫站余姚315400; 2中国林科院亚热带林业研究所富阳311400
中文关键词:松褐天牛,产卵,羽化规律,世代,浙江
英文关键词: Monochamus alternatus,oviposition,emergence,generation,Zhejiang
中文摘要:     松褐天牛Monochamus alternatus Hope线虫( Bursaphelenchus xylophilus)的主要传播媒介,明确松褐天牛的发生世代及成虫羽化规律对线有着重要意义研究塑料薄膜包裹松树树定期解除包裹供天牛产卵方法系统研究了地区松褐天牛产卵规律及成虫的羽化规律。研究结果表明,成虫产卵期5月上8月下高峰期出现在6月下8松褐天牛在浙11分为 2195%以上的成虫在产卵后2羽化少数在第3羽化。成虫5月上开始羽化高峰期出现在567羽化基本结
英文摘要:            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
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