ESTIMATED NUMBER AND DURATION OF SPINY BOLLWORM, EAR1AS 1NSULANA (BOISD.) FIELD GENERATIONS
HOSSAIN, A., EL-SAADANY, G., ABDEL-HAMID, Z., ROMEILAH, M. (1999). ESTIMATED NUMBER AND DURATION OF SPINY BOLLWORM, EAR1AS 1NSULANA (BOISD.) FIELD GENERATIONS. EKB Journal Management System, 77(2), 631-645. doi: 10.21608/ejar.1999.331412
ABDEL-HAMID M. HOSSAIN; GAMEL B. EL-SAADANY; ZEDAN H. ABDEL-HAMID; MOHAMED A. ROMEILAH. "ESTIMATED NUMBER AND DURATION OF SPINY BOLLWORM, EAR1AS 1NSULANA (BOISD.) FIELD GENERATIONS". EKB Journal Management System, 77, 2, 1999, 631-645. doi: 10.21608/ejar.1999.331412
HOSSAIN, A., EL-SAADANY, G., ABDEL-HAMID, Z., ROMEILAH, M. (1999). 'ESTIMATED NUMBER AND DURATION OF SPINY BOLLWORM, EAR1AS 1NSULANA (BOISD.) FIELD GENERATIONS', EKB Journal Management System, 77(2), pp. 631-645. doi: 10.21608/ejar.1999.331412
HOSSAIN, A., EL-SAADANY, G., ABDEL-HAMID, Z., ROMEILAH, M. ESTIMATED NUMBER AND DURATION OF SPINY BOLLWORM, EAR1AS 1NSULANA (BOISD.) FIELD GENERATIONS. EKB Journal Management System, 1999; 77(2): 631-645. doi: 10.21608/ejar.1999.331412

ESTIMATED NUMBER AND DURATION OF SPINY BOLLWORM, EAR1AS 1NSULANA (BOISD.) FIELD GENERATIONS

Egyptian Journal of Agricultural Research
Article 10, Volume 77, Issue 2, March 1999, Page 631-645  XML PDF (2.98 MB)
Document Type: Original Article
DOI: 10.21608/ejar.1999.331412
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Authors
ABDEL-HAMID M. HOSSAIN1; GAMEL B. EL-SAADANY2; ZEDAN H. ABDEL-HAMID2; MOHAMED A. ROMEILAH1
1Plant Protection Research Institute, Agricultural Research Centre, Dokki, Giza, Egypt
2Faculty of Agriculture, Ain-Shams University, Cairo, Egypt
Abstract
The present work was carried out to study the number and dura­tion of spiny bollworm, Earias insulana (Boisd.) field generations during three cotton growing seasons of 1993, 1994 and 1995 at Gharbia, Kafr El-Sheikh Governorates and for two tested seasons of 1993 & 1994 at Beheira Governorates. To facilitate the graphical and numberical presen­tation of the data, each locality was discussed separately for the three years combined. The present results revealed the presence of six over­lapping generations during the whole investigation period in each of the three tested localities were estimated.
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