Temperature-and Relative Humidity-Dependent Life History Traits of Phenacoccus solenopsis (Hemiptera: Pseudococcidae) on Hibiscus rosa-sinensis (Malvales: Malvaceae)
Temperature-and Relative Humidity-Dependent Life History Traits of Phenacoccus solenopsis (Hemiptera: Pseudococcidae) on Hibiscus rosa-sinensis (Malvales: Malvaceae)
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DOI：
10.1093/ee/nvv085
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发表时间：
2015-08-01
影响因子：
1.7
通讯作者：
Zhou, Z. S.
中科院分区：
文献类型：
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作者：
Chen, H. S.;Yang, L.;Zhou, Z. S.
褐球藻Phenacoccus Solenopsis Tinsley(半翅目：伪球虫科)是一种世界性分布的入侵害虫，原产于美国，2008年在广东省中国首次报道。在7个恒温(15、20、25、27.5、30、32.5和35℃)和3个相对湿度(45、60和75%)条件下，研究了温度和相对湿度(RH)对木槿科月季青霉生活史特征的影响。结果表明，温度、相对湿度及其交互作用显著影响青杨幼虫的生活史特征。1龄幼虫对极端温度最为敏感，在15℃和35℃温度下存活率极低，在25~32.5℃和3次RHS条件下，整个幼虫发育历期较短，为12.5~18.6d，完成一代的最低起点温度为13.2℃，有效积温为393.7℃·d。不同处理间雌成虫的百分率和寿命有显著差异。它未能在15或35摄氏度和三个RHS的温度下完成开发。雌性繁殖力在27.5℃和45%RH时达到最大值。内禀增长率(R)、净增殖率(R-0)和极限增长率(Lambda)分别在摄氏27.5℃和相对湿度45%(0.22d(-1)、244.6枚孵化卵和1.25d(-1))时达到最大值。因此，27.5℃和45%的相对湿度是该害虫种群发育的最适条件。
Phenacoccus solenopsis Tinsley (Hemiptera: Pseudococcidae), a worldwide distributive invasive pest, originated from the United States, and it was first reported in Guangdong province, China, in 2008. The effects of temperature and relative humidity (RH) on the life history traits of P. solenopsis on Hibiscus rosa-sinensis L. (Malvales: Malvaceae) were studied at seven constant temperatures (15, 20, 25, 27.5, 30, 32.5, and 35 degrees C) and three RHs (45, 60, and 75%). The results showed that temperature, RH, and their interactions significantly influenced the life history traits of P. solenopsis. First instar was the most sensitive stage to extreme temperatures with very low survival rates at 15 and 35 degrees C. At 25-32.5 degrees C and the three RHs, the developmental periods of entire immature stage were shorter with values between 12.5-18.6 d. The minimum threshold temperature and the effective accumulative temperature for the pest to complete one generation were 13.2 degrees C and 393.7 degree-days, respectively. The percentage and longevity of female adults significantly differed among different treatments. It failed to complete development at 15 or 35 degrees C and the three RHs. Female fecundity reached the maximum value at 27.5 degrees C and 45% RH. The intrinsic rate for increase (r), the net reproductive rate (R-0), and the finite rate of increase (lambda) reached the maximum values at 27.5 degrees C and 45% RH (0.22 d(-1), 244.6 hatched eggs, and 1.25 d(-1), respectively). Therefore, we conclude that 27.5 degrees C and 45% RH are the optimum conditions for the population development of the pest.