Biological and Ecological Fitness of the Two-Spotted Spider Mite, Tetranychus urticae Koch (Acari: Tetmnychidae) on Certain Host Plants
Ibrahim, M., El-Esnawy, B., El-Adawy, A. (2016). Biological and Ecological Fitness of the Two-Spotted Spider Mite, Tetranychus urticae Koch (Acari: Tetmnychidae) on Certain Host Plants. EKB Journal Management System, 10(1), 31-35. doi: 10.21608/ajesa.2016.164059
M. M. Ibrahim; Badriea A. El-Esnawy; A. M. El-Adawy. "Biological and Ecological Fitness of the Two-Spotted Spider Mite, Tetranychus urticae Koch (Acari: Tetmnychidae) on Certain Host Plants". EKB Journal Management System, 10, 1, 2016, 31-35. doi: 10.21608/ajesa.2016.164059
Ibrahim, M., El-Esnawy, B., El-Adawy, A. (2016). 'Biological and Ecological Fitness of the Two-Spotted Spider Mite, Tetranychus urticae Koch (Acari: Tetmnychidae) on Certain Host Plants', EKB Journal Management System, 10(1), pp. 31-35. doi: 10.21608/ajesa.2016.164059
Ibrahim, M., El-Esnawy, B., El-Adawy, A. Biological and Ecological Fitness of the Two-Spotted Spider Mite, Tetranychus urticae Koch (Acari: Tetmnychidae) on Certain Host Plants. EKB Journal Management System, 2016; 10(1): 31-35. doi: 10.21608/ajesa.2016.164059

Biological and Ecological Fitness of the Two-Spotted Spider Mite, Tetranychus urticae Koch (Acari: Tetmnychidae) on Certain Host Plants

Acarines: Journal of the Egyptian Society of Acarology
Article 6, Volume 10, Issue 1, 2016, Page 31-35  XML PDF (4.02 MB)
Document Type: Original research articles
DOI: 10.21608/ajesa.2016.164059
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Authors
M. M. Ibrahim; Badriea A. El-Esnawy; A. M. El-Adawy
Plant Protection Research Institute , Agri. Res. Center, Giza, Egypt
Abstract
Biological and Ecological Fitness of the Two-Spotted Spider Mite, Tetranychus urticae Koch (Acari: Tetranychidae) on Certain Host Plants The comparative population growth parameters of the two-spotted spider mite,  Tetranychus urticae Koch on cucurbits vegetable crops; Sudanian, Musk and Snake melons commonly planted in numerous districts of Egypt were studied. These parameters were estimated at 25 ± 1°C, 60 ± 5% R.H. and a photoperiod of 14:10 hrs. (L: D) daily. Developmental time, survival to adult stage and egg hatchability were similar  among the three host plants, hut significant variation in  fecundity and longevity, resulting in  large differences tor population growth parameters. such as the intrinsic rate of natural increase (rm),  net reproductive rate (Ro) and finite rate of increase(λ) were detected. Sudanian melon was the most favorable host for the two-spotted spider mite with rm  (0.297),  followed  by Musk melon (0.243)  off springs/female/day. The slowest population growth was observed on Snake melon with rm (0.231) off springs/ female/day.
Keywords
Host plant; Cucurbits; Lite Table; Tetranychus urticae
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