Author/Authors :
pourbehi، Hamideh نويسنده PhD student, Department of Entomolog, Fars Science and Research Branch, Islamic Azad University , , Talebi، Ali Asghar نويسنده Department of Entomology, Faculty of Agriculture, Tarbiat Modares University, P. O. Box 14115-336, Tehran, Iran. , , Zamany، Abbas Ali نويسنده Plant Protection Department, Razi University, Kermanshah, Iran , , Goldasteh، Shila نويسنده Department of Entomology, Faculty of Agriculture, Islamic Azad University, Arak, Iran. , , Farrar، Naser نويسنده Agriculture and Natural Resources Research Center of Bushehr , , Niknam، Nasrin نويسنده Graduated student (Msc), Department of Agronomy, Faculty of Agriculture, Yasouj University, Iran ,
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 ?C, 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.
