| Biology and life table parameters of the mushroom pest, Pediculaster fletchmanni （Acari： Siteroptidae）, at three constant temperatures |
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| 作者姓名： | KATAYUN KHERADMAND KARIM KAMALI YAGHOUB FATHIPOUR EBRAHIM MOHAMMADI GOLTAPEH A. M. CAMERIK |
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| 作者单位： | [1]Department of Agricultural Entomology, Faculty of Agriculture [2]Department of Plant Pathology, Faculty of Agriculture, Tarbiat Modares University, Tehran, Iran [3]School of Animals, Plant and Environmental Sciences, University of the Witwatersrand, Johannesburg, South Africa |
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| 摘 要： | This paper is concerned with the bionomics and demography of Pediculaster fletchmanni Wicht （Acari： Siteroptidae） under controlled conditions （20 ± l, 22 ± 1 and 25 ± 1℃, 70% ± 5% relative humidity and a photoperiod of 16L ： 8D hours）. Glass Petri dishes inoculated with Trichoderma sp. mycelia were used as substrate and food source. The mean developmental time of the egg and the active larva did not differ significantly at the various constant temperatures, but these periods were significantly different for the quiescent larval stage. The preoviposition period ranged from 2.3 to 2.8 days, the ovipositional period increased with temperature increase, and all females died immediately after oviposition. The development of active larvae was the fastest of all life stages. The developmental threshold ranged between 5.25-14.22℃ the highest value being observed for the quiescent larval development. For immature development required 89.29 degree-days. Values of rm （intrinsic rate of increase） were 0.229, 0.398 and 0.386 for 20, 22 and 25℃ respectively. Finite rates of increase （λ） increased along with increasing temperature from 20-25℃ consequently the population doubling time （D） and mean generation time （T） showed significant differences with increasing temperature.
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| 关 键 词： | 生物学 害虫 寿命 温度 |
Biology and life table parameters of the mushroom pest, Pediculaster fletchmanni (Acari: Siteroptidae), at three constant temperatures |
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| Authors: | KATAYUN KHERADMAND KARIM KAMALI YAGHOUB FATHIPOUR EBRAHIM MOHAMMADI GOLTAPEH A M CAMERIK |
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| Institution: | Department of Agricultural Entomology, Faculty of Agriculture, Tarbiat Modares University, Tehran, Iran;, Department of Plant Pathology, Faculty of Agriculture, Tarbiat Modares University, Tehran, Iran;and School of Animals, Plant and Environmental Sciences, University of the Witwatersrand, Johannesburg, South Africa |
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| Abstract: | Abstract This paper is concerned with the bionomics and demography of Pediculaster fletchmanni Wicht (Acari: Siteroptidae) under controlled conditions (20 ± 1, 22 ± 1 and 25 ± 1°C, 70%± 5% relative humidity and a photoperiod of 16L : 8D hours). Glass Petri dishes inoculated with Trichoderma sp. mycelia were used as substrate and food source. The mean developmental time of the egg and the active larva did not differ significantly at the various constant temperatures, but these periods were significantly different for the quiescent larval stage. The preoviposition period ranged from 2.3 to 2.8 days, the ovipositional period increased with temperature increase, and all females died immediately after oviposition. The development of active larvae was the fastest of all life stages. The developmental threshold ranged between 5.25–14.22°C the highest value being observed for the quiescent larval development. For immature development required 89.29 degree-days. Values of r m (intrinsic rate of increase) were 0.229, 0.398 and 0.386 for 20, 22 and 25°C respectively. Finite rates of increase (λ) increased along with increasing temperature from 20–25°C consequently the population doubling time ( D t) and mean generation time ( T c) showed significant differences with increasing temperature. |
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| Keywords: | degree-day demographic parameters mushroom pest Siteroptidae |
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