| 松墨天牛种群消长趋势指数研究 |
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| 引用本文： | 林世奎,张世渊,陈立根.松墨天牛种群消长趋势指数研究[J].中国森林病虫,2001,20(2):21-23. |
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| 作者姓名： | 林世奎 张世渊 陈立根 |
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| 作者单位： | 1. 浙江省象山县林业局,
2. 象山县石浦镇林业工作站, |
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| 摘 要： | 在松墨天牛Monochamus alternatus 1年1代地区，该虫单雌产卵量约100粒，卵、初龄幼虫、老龄幼虫至成虫羽化脱孔、成虫羽人至产卵在松材线虫病林内的存活率分别为90％、48.34%、71.99%和85.75%，雌雄性比是1.14:1。因而该虫的种群消长趋势指数是14.3。
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| 关 键 词： | 种群消长指数 松墨天牛 松材线虫病 传播媒介 |
| 文章编号： | 1671-0886(2001)02-0021-03 |
| 修稿时间： | 2000年8月7日 |
The fluctuation index of Monochamus alternatus population |
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| LIN Shi kui,et al.The fluctuation index of Monochamus alternatus population[J].Forest Pest and Disease,2001,20(2):21-23. |
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| Authors: | LIN Shi kui |
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| Abstract: | In the area where Monochamus alternatus has one generation a year,the fecundity is about one hundred eggs per female.In pine wilt disease forest, the survival rates of eggs,initial instar larvae,the periods from mature larvae to adults out of emergence holes and from emergence to oviposition are 90%,48.34%,71.99%,85.71% respectively. Thus,fluctuation index of Monochamus alternatus population is 14.3.The quantity of the insect shall increase 14.3 times every year. |
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| Keywords: | population fluctuation index Monochamus alternatus pine wilt disease |
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