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Effects of photoperiods on demography and population growth of Aulacophora foveicollis Lucas reared on Solena amplexicaulis plant
International Journal of Tropical Insect Science ( IF 1.2 ) Pub Date : 2020-10-20 , DOI: 10.1007/s42690-020-00335-0
Amarnath Karmakar , Syed Husne Mobarak , Anamika Koner , Paroma Mitra , Anandamay Barik

Aulacophora foveicollis Lucas, commonly known as red pumpkin beetle, is an important pest of many cucurbitaceous plants in India. To develop the mass rearing facilities, this research was conducted on the effects of photoperiods on larval and adult development of A. foveicollis on roots and leaves of Solena amplexicaulis (Lam.) Gandhi, commonly known as creeping cucumber, respectively, at five different photoperiods, 8 L:16D, 10 L:14D, 12 L:12D, 14 L:10D and 16 L:8D at 30 ± 1 °C and 75 ± 5% RH under laboratory conditions. The shortest total development time (egg to adult emergence) of A. foveicollis was 41.10 days at 14 L:10D. The longevity of females was the highest at 14 L:10D (61.00 days) and the shortest at 8 L:16D (39.87 days). The fecundity was the highest at 14 L:10D (188.08) and the lowest at 8 L:16D (101.40). The net reproduction rate (R0) ranged from 5.32 to 24.45 offspring, which was higher at 12 L:12D and 14 L:10D. The intrinsic rate of increase (r) varied from 0.0251 to 0.0520 day−1, and it was higher at 12 L:12D and 14 L:10D. The finite rate of increase (λ) was also higher at 12 L:12D and 14 L:10D. Mean generation time (T) was the fastest at 14 L:10D (61.52 days) and the longest at 8 L:16D (69.33 days). Population projection revealed that total A. foveicollis population growth was the fastest at 14 L:10D. These results suggested that 14 L:10D was the most suitable for development and reproduction of A. foveicollis than other photoperiod regimes tested in this study, and this information will be helpful for running successful bioassays in integrated pest management programme.



中文翻译:

光周期对茶树植物饲养的黄褐藻的种群和种群增长的影响

凹叶金龟(Aulacophora foveicollis Lucas),俗称红色南瓜甲虫,是印度许多葫芦科植物的重要害虫。为了开发大规模饲养设施,本研究在五个不同的光周期下分别研究了光周期对A. veveicollis幼虫和成年对分别称为爬行黄瓜的Solena amplexicaulis(Lam。)Gandhi的根和叶的影响。 ,8 L:16D,10 L:14D,12 L:12D,14 L:10D和16 L:8D在30±1°C和75±5%RH的实验室条件下。产黄曲霉最短的总发育时间(从卵到成年)在14 L:10D时为41.10天。女性的寿命在14 L:10D(61.00天)最高,而在8 L:16D(39.87天)最短。繁殖力最高的是14 L:10D(188.08),最低的是8 L:16D(101.40)。子代的净繁殖率(R 0)介于5.32至24.45之间,在12 L:12D和14 L:10D时更高。固有增加率(r)在0.0251至0.0520天-1之间变化,并且在12 L:12D和14 L:10D时更高。有限的增加率(λ)在12 L:12D和14 L:10D时也更高。平均产生时间(T)在14 L:10D(61.52天)最快,在8 L:16D(69.33天)最长。人口预测显示总黄曲霉人口增长最快的是14 L:10D。这些结果表明,与本研究中测试的其他光周期制度相比,14 L:10D最适合黄曲霉的发育和繁殖,该信息将有助于在综合害虫管理计划中成功进行生物测定。

更新日期:2020-10-20
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