Comparison of population growth parameters of the Plodia interpunctella Hübner (Lepidoptera: Pyralidae) on Zahedi, Shahabi and Kabkab cultivars of date
Journal Title: International Journal of Farming and Allied Sciences - Year 2013, Vol 2, Issue 14
Abstract
The Indian meal moth, Plodia interpunctella (Hübner) (Lepidoptera: Pyralidae) is one of the most commonly reported pests of stored date in Iran. The population growth parameters of P. interpunctella were studied on three cultivars (Zahedi, Shahabi and Kabkab) of date. The experiments were conducted in laboratory conditions at temperature of 27±2 ºC, relative humidity of 45±5% and a photoperiod of 16L: 8D hours. Data were analyzed according to Jackknife method with SAS and SPSS statistical software. The net reproduction rates were 55.28±5.80, 42.58±4.26 and 36.03±4.67 females per female per generation on Zahedi, Shahabi and Kabkab cultivars, respectively. The intrinsic rate of increases on Zahedi, Shahabi and Kabkab cultivars were estimated 0/0941±0/002, 0/0813±0/002 and 0/0691±0/002 females per female per day, respectively. There was significant difference between intrinsic rate of increase, finite rate of increase, doubling time and mean generation time on different cultivars of date. The longest and shortest mean generation time was obtained on Kabkab (51.984±0.004 days) and Zahedi (42.655±0.005 days) cultivars, respectively.
Authors and Affiliations
Hamideh Pourbehi, Ali Asghar Talebi, Abbas Ali Zamany, Shila Goldasteh, Naser Farrar and Nasrin Niknam
Keywords
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