河南豫西地区中华松干蚧自然种群生命表

Forest Pest and Disease(2015)

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Abstract
在河南豫西地区,中华松干蚧Matsucoccus sinensis Chen每年发生1代,当年8-9月和次年3-4月为危害盛期,主要以2龄若虫危害.自然状态下,下代数量较上代数量平均增加4.96倍.相关回归分析表明,初孵若虫到分化前2龄若虫期为影响下一代种群数量变动的关键虫期,风雨为影响分化前2龄若虫期的关键因子.
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