عنوان المقالة:تأثير بعض الألوان الطيفية مختلفة على بعض المتغيرات البيولوجية للحلم العنكبوتي ذي البقعتين Tetranychus urticae Certain effects of different spectral colors on some biological parameters of the two-spotted spider mite, Tetranychus urticae
د. منال سيد محمد اسماعيل- ا.د/ احمد حسن ابوغالية- ا.د/ مها فريد سليمان- ا.د./ مني محمد أحمد غلاب
English Authors
Manal S. M. Ismail1, Ahmed H. AboGhalia2, Maha F. M. Soliman2 and Mona M.A. Ghallab1
Abstract
Certain effects of different spectral light colors were studied on some
biological attributes of the two-spotted spider mite, Tetranychus urticae. Rearing of
animals was carried out under conditions of 27±0.5°C; 60% R.H. and 16 L/8 D
photoperiod on Sweet Potato leaves. Thus, 5 artificial light colors were applied under
controlled laboratory conditions on these animals: blue, red, green, yellow and white
Neon. After treatment, the highest number of deposited eggs/female was observed by
using the blue color (14.9±0.5 eggs/female) while the lowest one was the yellow
(3.1±0.2 eggs/female) compared to 9.9±0.4 eggs/female for the control group. On the
other hand, diapause incidence was observed for the target females under conditions
of 18±2°C; 60±2% R.H. and the light and dark periods were set at 8 L/16 D,
respectively. Results showed that white Neon color caused the highest percentage of
diapausing females (88.66±1.8%) followed by green color (78±3.5%), yellow
(68.66±2%), the blue color with (54±2%), and finally none of them entered diapause
under red color. Results were analyzed and discussed for the aforementioned
important economic pest animals
Publication Date
11/22/2011
Publisher
Egyptian Academic Journal of biological Sciences B. Zoology
منال سيد محمد إسماعيل | Manal Sayed Mohamed Ismail | 2651