Del Pino Modesto, Cabello Tomás, Hernández-Suárez Estrella
Laboratory of Agricultural Entomology, Andalusian Institute for Research and Training in Agriculture, Fishery, Food and Organic Production (IFAPA), Málaga Centre, ES Churriana, Málaga, Spain.
Department of Biology and Ecology, University of Almeria, ES Almeria, Spain.
Environ Entomol. 2020 Aug 20;49(4):777-788. doi: 10.1093/ee/nvaa050.
The golden twin-spot moth or tomato looper, Chrysodeixis chalcites (Esper), is a polyphagous and worldwide pest that causes important aesthetic damages to banana fruits in the Canary Islands. The life history parameters of C. chalcites were determined under laboratory conditions in base on the age-stage, two-sex life table at 15, 20, 25, 30, and 35°C, 65% relative humidity (RH), and a photoperiod of 16:8 (L:D) h, when it was reared on a semi-synthetic diet. The results show that C. chalcites was able to develop and survive from 15 to 30°C, but no development occurred at 35°C. Developmental threshold temperatures of the egg, larval, pupal, and total preoviposition stages were 10.42, 11.73, 11.22, and 9.42°C, respectively, and their effective accumulated temperatures were 58.31, 265.96, 118.57, and 562.39 degree-days, respectively. The adult longevity was reduced with increasing temperature, which ranged between 16.27 and 34.85 d for females and between 14.27 and 35.21 d for males. The highest values of net reproductive rate (R0) and fecundity were observed at 25°C, with 232.70 offspring and 1,224.74 eggs, respectively. Both the intrinsic rate of increase (r) and finite rate of increase (λ) increased significantly and mean generation time (T) decreased significantly with increasing temperature. These results provide useful information that will allow predicting the impact of climate change on the distribution and population dynamics of C. chalcites and developing successful integrated management programs.
金双斑夜蛾或番茄夜蛾，即银纹夜蛾（Chrysodeixis chalcites (Esper)），是一种多食性的世界性害虫，在加那利群岛会对香蕉果实造成严重的外观损害。在实验室条件下，以半合成饲料饲养银纹夜蛾，基于年龄-阶段两性生命表，测定了该虫在15、20、25、30和35°C、相对湿度65%（RH）以及光周期16:8（L:D）小时条件下的生活史参数。结果表明，银纹夜蛾在15至30°C能够发育和存活，但在35°C时不发生发育。卵、幼虫、蛹和整个产卵前期的发育阈值温度分别为10.42、11.73、11.22和9.42°C，其有效积温分别为58.31、265.96、118.57和562.39日度。成虫寿命随温度升高而缩短，雌虫寿命在16.27至34.85天之间，雄虫在14.27至35.21天之间。在25°C时观察到净增殖率（R0）和繁殖力的最高值，分别为232.70个后代和1224.74枚卵。随着温度升高，内禀增长率（r）和周限增长率（λ）均显著增加，平均世代时间（T）显著减少。这些结果提供了有用信息，有助于预测气候变化对银纹夜蛾分布和种群动态的影响，并制定成功的综合管理方案。
