SEASONAL ABUNDANCE OF THREE PIERCING-SUCKING INSECTS AND THEIR ASSOCIATED NATURAL ENEMIES ON COTTON PLANTS IN THREE DIFFERENT SOWING DATES IN ELGHARBIA GOVERNORATE, EGYPT.
Ragab, M., El-Fatih, M. (2010). SEASONAL ABUNDANCE OF THREE PIERCING-SUCKING INSECTS AND THEIR ASSOCIATED NATURAL ENEMIES ON COTTON PLANTS IN THREE DIFFERENT SOWING DATES IN ELGHARBIA GOVERNORATE, EGYPT.. EKB Journal Management System, 24(1), 72-83. doi: 10.21608/fjard.2010.195657
M. Gomma Ragab; Monira, M. El-Fatih. "SEASONAL ABUNDANCE OF THREE PIERCING-SUCKING INSECTS AND THEIR ASSOCIATED NATURAL ENEMIES ON COTTON PLANTS IN THREE DIFFERENT SOWING DATES IN ELGHARBIA GOVERNORATE, EGYPT.". EKB Journal Management System, 24, 1, 2010, 72-83. doi: 10.21608/fjard.2010.195657
Ragab, M., El-Fatih, M. (2010). 'SEASONAL ABUNDANCE OF THREE PIERCING-SUCKING INSECTS AND THEIR ASSOCIATED NATURAL ENEMIES ON COTTON PLANTS IN THREE DIFFERENT SOWING DATES IN ELGHARBIA GOVERNORATE, EGYPT.', EKB Journal Management System, 24(1), pp. 72-83. doi: 10.21608/fjard.2010.195657
Ragab, M., El-Fatih, M. SEASONAL ABUNDANCE OF THREE PIERCING-SUCKING INSECTS AND THEIR ASSOCIATED NATURAL ENEMIES ON COTTON PLANTS IN THREE DIFFERENT SOWING DATES IN ELGHARBIA GOVERNORATE, EGYPT.. EKB Journal Management System, 2010; 24(1): 72-83. doi: 10.21608/fjard.2010.195657

SEASONAL ABUNDANCE OF THREE PIERCING-SUCKING INSECTS AND THEIR ASSOCIATED NATURAL ENEMIES ON COTTON PLANTS IN THREE DIFFERENT SOWING DATES IN ELGHARBIA GOVERNORATE, EGYPT.

Fayoum Journal of Agricultural Research and Development
Article 7, Volume 24, Issue 1, January 2010, Page 72-83  XML PDF (435.03 K)
Document Type: Research articles.
DOI: 10.21608/fjard.2010.195657
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Authors
M. Gomma Ragab; Monira, M. El-Fatih
Plant Protection Research Institute, Agriculture Research Center, Dokki, Giza, Egypt.
Abstract
The present study focused on the seasonal abundance of various
sucking pests observed on cotton plants in relation to their associated
natural enemies at three different sowing dates to determine the best
sowing date could escape from the infestation at Gemmeiza Agricultural
Research Station, El-Gharbia Governorate during 2006- 2007 cotton
seasons. This study clarify that there are three piercing-sucking species
infesting cotton plants. Theses species are cotton whitefly, Bemisia tabaci
(Genn.), cotton leaves Jassid, Emboasca lybica (Deg.) and cotton aphid,
Aphis gossypii Glover. The associated natural enemies were lady bird
Coccinella undecimpunctata (L.) & C. septempunctata (L.), Scymnus
interruptus (Goeze.) & S. syriacus (Marseu), rove beetle, Paederus
alfierii (Koch); Orius albidiennis (Reuter), O. laevigatus (Fiebern),
Green lacewing, Chryso/la carnea (Steph.) and true spiders. From this
study it could be concluded that the first sowing date was the suitable one
for cultivating cotton plants which the suitable date for predator's
activation (build up) and resultant in piercing-sucking pest's reduction
especially A. gossypii. However, the obtained results are of great
importance for the sowing date recommendation to improve and develop < br />the crop management program in cotton fields



Keywords
Cotton; Seasonal abundance; Aphid gossypii; Bemisia tabaei; Emboasca lykica; Natural enemies and Sowing dates
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