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ABDEL-HAMID, Z., EL-SAADANY, G., RADWAN, S., ROMEILAH, M. (1999). EFFECT OF TRANSPLANTING AND PLANTING DATES OF COTTON AND THE INFESTATION LEVELS OF PINK AND SPINY BOLLWORMS. Egyptian Journal of Agricultural Research, 77(2), 611-630. doi: 10.21608/ejar.1999.331409
ZEDAN H. ABDEL-HAMID; GAMEL B. EL-SAADANY; SAMER M. E. RADWAN; MOHAMED A. ROMEILAH. "EFFECT OF TRANSPLANTING AND PLANTING DATES OF COTTON AND THE INFESTATION LEVELS OF PINK AND SPINY BOLLWORMS". Egyptian Journal of Agricultural Research, 77, 2, 1999, 611-630. doi: 10.21608/ejar.1999.331409
ABDEL-HAMID, Z., EL-SAADANY, G., RADWAN, S., ROMEILAH, M. (1999). 'EFFECT OF TRANSPLANTING AND PLANTING DATES OF COTTON AND THE INFESTATION LEVELS OF PINK AND SPINY BOLLWORMS', Egyptian Journal of Agricultural Research, 77(2), pp. 611-630. doi: 10.21608/ejar.1999.331409
ABDEL-HAMID, Z., EL-SAADANY, G., RADWAN, S., ROMEILAH, M. EFFECT OF TRANSPLANTING AND PLANTING DATES OF COTTON AND THE INFESTATION LEVELS OF PINK AND SPINY BOLLWORMS. Egyptian Journal of Agricultural Research, 1999; 77(2): 611-630. doi: 10.21608/ejar.1999.331409

EFFECT OF TRANSPLANTING AND PLANTING DATES OF COTTON AND THE INFESTATION LEVELS OF PINK AND SPINY BOLLWORMS

Article 9, Volume 77, Issue 2, March 1999, Page 611-630  XML PDF (4.24 MB)
Document Type: Original Article
DOI: 10.21608/ejar.1999.331409
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Authors
ZEDAN H. ABDEL-HAMID1; GAMEL B. EL-SAADANY1; SAMER M. E. RADWAN2; MOHAMED A. ROMEILAH2
1Faculty of Agriculture, Ain-Shams University, Cairo, Egypt
2Plant Protection Research Institute, Agricultural Research Centre, Dokki, Giza, Egypt
Abstract
The present work was carried out to investigate the development of bollworm infestations in the transplanting cotton and cotton sowing by seeds during three successive cotton growng seasons of 1993, 1994 and 1995 at Gharbia, Kafr el-Sheikh and Beheira Governorates. The in­festation by cotton bollworms, Pectinophora gossypiella (Saunders) and Earias insulana (Boisd.) in the squares, flowers and green bolls were esti­mated during the whole period of investigation for the three tested lo­calities combined. Cotton sowing by seeds harboured the highest infes­tation levels, while cotton cultivated by transplanting of cotton seedlings received less cotton bollworm infestations.
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