| Author(s) | Abdullah S. Alomairine, Yousif N. Aldryhim and Ali M. Alsuhaibani |
| Affiliation | Department of Plant Protection, College of Food Science and Agriculture, King Saud University , Riyadh, Saudi Arabia. |
| Title | Effect of Pepper Plant Varieties and Temperature on the Biology of Green Peach Aphid Myzus persicae (Sulzer) |
| Source | Journal of King Saud University. Agricultural Sciences. Volume 18, No 1. (2006/1426) |
| Abstract | Some biological studies on green peach aphid Myzus persicae (Sulzer) had been conducted in growth champers, under two constant temperatures, 15 and 25oC using two pepper plant varieties, California Wonder and Starr. This study revealed that the host plant varieties had no effect on duration of the nymphal stages. However, temperature caused a significant effect on the nymphal period that it decreased from 8.9 and 9.7 days at 15 oC to 6.7 and 6.2 days at 25 oC on the two varieties of pepper, California Wonder and Starr, respectively. The generation time (T) was also affected by the temperature change. it was 10.5 and 11.2 days at 15 oC and 7.4 and 7.0 at 25 oC on the two varieties, respectively. The intrinsic rate of increase (rm) was two folds more at 25 oC than at 15 oC. It reached 0.19 and 0.18 at 15 oC and 0.41 and 0.48 at 25 oC on the two varieties, respectively. The population doubling time (D) was als o significantly affected by temperature. It was 3.85 and 3.96 days at 15 oC and 1.68 and 1.47 days at 25 oC on two plant varieties, respectively. |
