Entomology, Ornithology & Herpetology: Current Research
Open Access
ISSN: 2161-0983
ISSN: 2161-0983
El Nayer H. Suliman, Nabil H. H. Bashir, El Ameen M. A. E tom and Yousif O. H. Asad
Accepted Abstracts: Entomol Ornithol Herpetol
The experiments were conducted during 2009-011 seasons in Gedarif Research Station laboratory, Agricultural Research Corporation. To study biology and webbing (spinning) behaviour of sesame webworm, A. catalaunalis Dup. under laboratory conditions during the period of September to November 2006. Eggs incubation period was 2.45 days, while larval period lasted for 10.2� 1.05 days, completing five larval instars. The pupation occurred both inside the webbed leaves and the in the soil, and the average pupal period was 4.9�0.21 days. The average adults longevity was 6.18� 0.2 days. The webbing behaviour revealed that the area of the leaves greatly influenced the webbing process. The larger area of the leaves, the greater number of stitches made and the longer time taken for completing the webbing. The larva changed the position while webbing, if the leaf area was large. Smaller leaves were webbed quickly, even if the length of the larvae was short.