Effects of Temperature on Development, Survival, and Fecundity of Potato Tuberworm, Phthorimaea operculella (Lepidoptera: Gelechiidae) on Potato Tubers

摘要: The potato tuberworm, Phthorimaea operculella (Zeller) (Lepidoptera: Gelechiidae) is one of the most economically damaging insect pests (Solanum tuberosum L.) worldwide. effects temperature on performance tuberworm was studied at six constant temperatures; 16, 20, 24, 28, 32, and 36°C. Potato failed to survive 36°C during egg period. Total developmental time decreased with increasing up 32°C. Adult longevity negatively correlated longest adult observed 16°C. average fecundity females ranged from 45.3 eggs 16°C 117.3 28°C. Net reproductive rate (R0) 12.8 43.2 Mean generation (T) temperatures 61.0 days 16.2 doubling had highest value intrinsic increase (rm) values 0.042 (female offspring/female/day) 0.228 offspring per female day) findings this study may provide important information for designing a comprehensive pest management program especially in storerooms.