Biological study of the coccinellid predator, Stethorus punctillum under different constant temperatures
Bakr, R., Genidy, N., Gesraha, M., Farag, N., Elbehery, H. (2009). Biological study of the coccinellid predator, Stethorus punctillum under different constant temperatures. EKB Journal Management System, 2(1), 1-7. doi: 10.21608/eajbsa.2009.15447
Reda F.A. Bakr; Noha A. M Genidy; M. A. Gesraha; N. A. Farag; Hoda H.A. Elbehery. "Biological study of the coccinellid predator, Stethorus punctillum under different constant temperatures". EKB Journal Management System, 2, 1, 2009, 1-7. doi: 10.21608/eajbsa.2009.15447
Bakr, R., Genidy, N., Gesraha, M., Farag, N., Elbehery, H. (2009). 'Biological study of the coccinellid predator, Stethorus punctillum under different constant temperatures', EKB Journal Management System, 2(1), pp. 1-7. doi: 10.21608/eajbsa.2009.15447
Bakr, R., Genidy, N., Gesraha, M., Farag, N., Elbehery, H. Biological study of the coccinellid predator, Stethorus punctillum under different constant temperatures. EKB Journal Management System, 2009; 2(1): 1-7. doi: 10.21608/eajbsa.2009.15447

Biological study of the coccinellid predator, Stethorus punctillum under different constant temperatures

Egyptian Academic Journal of Biological Sciences. A, Entomology
Article 1, Volume 2, Issue 1, June 2009, Page 1-7  XML PDF (191.67 K)
Document Type: Original Article
DOI: 10.21608/eajbsa.2009.15447
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Authors
Reda F.A. Bakr1; Noha A. M Genidy1; M. A. Gesraha2; N. A. Farag2; Hoda H.A. Elbehery2
1Department of Entomology, Faculty of Science, Ain Shams University, Cairo, Egypt
2Department of Pests and Plant Protection, National Research Centre, Cairo, Egypt
Abstract
The ladybeetle, Stethorus punctillum Wiese (Coccinellidae: Coleoptera), is one of the common predators for the two-spotted spider mite, Tetranychus urticae (Koch.). When this predator was reared under different constant temperatures (15, 25 and 35°C), the duration of all stages decreased with increasing temperature. The optimum rearing temperature for this predator under laboratory conditions was found to be 25°C. When the predator feed on alternative food source we found that no oviposition was recorded on any alternative foods, therefore, no eggs were deposited. There were difference in adult S. punctillum longevity associated with different alternative food they feed, the longest period recorded was 12.70 days when the predator feed on a mixture of honey droplets, pollen grains and royal jelly. The shortest periods recorded was 3.75 days when the predator was starved or 3.90 days when feed on aphid.  
Keywords
Ladybeetle; Stethorus punctillum; Tetranychus urticae; biology
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