Abstract
The interactive effects of temperature and CO2 on the lifecycle of the diamond back moth Plutella xylostella (L.) have been evaluated in this study. The life history parameters were analyzed using age- stage, and two-sex life table. Results revealed that at elevated temperature there was no complete development, whereas at elevated CO2 the lifecycle gets shortened. The fecundity was maximum (196 eggs/ female) at ambient temperature and elevated CO2 (31°C; 560 ppm); but at elevated temperature and CO2 (35°C; 560 ppm) it got reduced to 100 eggs/ female. The net reproductive rate (R0) was maximum (99.13/ female) at ambient temperature with elevated CO2 (31°C; 560 ppm). The intrinsic rate of increase (rm) was maximum at 0.30/ day CO2 (560± ppm). These results will help to predict the fitness of P. xylostella with climate change.
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