Riahi, E., Shishehbor, P., Nemati, A. R., Saeidi, Z. (2013). Temperature Effects on Development and Life Table Parameters of Tetranychus urticae (Acari: Tetranychidae). , 15(4), 661-672.
E. Riahi; P. Shishehbor; A. R. Nemati; Z. Saeidi. "Temperature Effects on Development and Life Table Parameters of Tetranychus urticae (Acari: Tetranychidae)". , 15, 4, 2013, 661-672.
Riahi, E., Shishehbor, P., Nemati, A. R., Saeidi, Z. (2013). 'Temperature Effects on Development and Life Table Parameters of Tetranychus urticae (Acari: Tetranychidae)', , 15(4), pp. 661-672.
Riahi, E., Shishehbor, P., Nemati, A. R., Saeidi, Z. Temperature Effects on Development and Life Table Parameters of Tetranychus urticae (Acari: Tetranychidae). , 2013; 15(4): 661-672.

Temperature Effects on Development and Life Table Parameters of Tetranychus urticae (Acari: Tetranychidae)

Journal of Agricultural Science and Technology
Article 2, Volume 15, Issue 4, 2013, Pages 661-672    PDF (944.01 K)
Authors
E. Riahi* 1; P. Shishehbor2; A. R. Nemati2; Z. Saeidi2
1Department of Plant Protection, Faculty of Agriculture, Shahid Chamran University, Ahvaz, Islamic Republic of Iran.
2Department of Plant Protection, Faculty of Agriculture, University of Shahahrekord, Islamic Republic of Iran.
Abstract
Development, reproduction and life table parameters of Tetranychus urticae Koch were determined on leaves of peach (G. H. Hale cultivar) at different temperatures, ranging from 13 to 33°C under laboratory conditions. No development was observed at 13°C. Egg-to-adult developmental time decreased gradually from 17 to 27°C and increased at higher temperatures (27 to 33°C). An average of 136.43 degree-days was required to complete development above the lower threshold temperature (13.79°C). Mean total egg productions per female were 40.09, 18.74, 8.03 and 21.33 at 25, 27, 30 and 33 °C, respectively. Mean longevities of the females were 12.91±1.65, 5.92±0.55, 3.56±0.54 and 6.53±0.56 days, respectively at the above mentioned temperatures. The intrinsic rate of increase (rm) at different temperatures ranged from 0.108 to 0.213 day -1, with the highest value recorded at 27 °C. The highest and the lowest values of the net reproductive rate (R0) were obtained at 25°C (16.87) and 30°C (4.18), respectively. Doubling time (DT) varied significantly at different temperatures and the shortest and longest values of this period were obtained at 27 and 30°C, respectively. The results suggested that T. urticae was able to develop and reproduce within a wide range of temperatures, and that temperatures from 27- 30°C are the most suitable conditions for the development, survivorship and reproduction of the mite.
Keywords
Development; Life table parameters; Peach; Temperature; Tetranychus urticae
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