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METWALLY, S., HELAL, R., SHAWER, M., SALEM, R., EL-MEZAIEN, E. (2005). SUSCEPTIBILITY OF SOME EGYPTIAN COTTON VARIETIES TO WHITE FLY, BEMISIA TABACI (GENN.) INFESTATION. Egyptian Journal of Agricultural Research, 83(2), 525-537. doi: 10.21608/ejar.2005.244869
SHAWKY M. I. METWALLY; RAMADAN M. HELAL; MOHAMED B. SHAWER; RAMDAN M. B. SALEM; ELANSARY B. M. EL-MEZAIEN. "SUSCEPTIBILITY OF SOME EGYPTIAN COTTON VARIETIES TO WHITE FLY, BEMISIA TABACI (GENN.) INFESTATION". Egyptian Journal of Agricultural Research, 83, 2, 2005, 525-537. doi: 10.21608/ejar.2005.244869
METWALLY, S., HELAL, R., SHAWER, M., SALEM, R., EL-MEZAIEN, E. (2005). 'SUSCEPTIBILITY OF SOME EGYPTIAN COTTON VARIETIES TO WHITE FLY, BEMISIA TABACI (GENN.) INFESTATION', Egyptian Journal of Agricultural Research, 83(2), pp. 525-537. doi: 10.21608/ejar.2005.244869
METWALLY, S., HELAL, R., SHAWER, M., SALEM, R., EL-MEZAIEN, E. SUSCEPTIBILITY OF SOME EGYPTIAN COTTON VARIETIES TO WHITE FLY, BEMISIA TABACI (GENN.) INFESTATION. Egyptian Journal of Agricultural Research, 2005; 83(2): 525-537. doi: 10.21608/ejar.2005.244869

SUSCEPTIBILITY OF SOME EGYPTIAN COTTON VARIETIES TO WHITE FLY, BEMISIA TABACI (GENN.) INFESTATION

Article 2, Volume 83, Issue 2, July 2005, Page 525-537  XML PDF (2.8 MB)
Document Type: Original Article
DOI: 10.21608/ejar.2005.244869
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Authors
SHAWKY M. I. METWALLY1; RAMADAN M. HELAL1; MOHAMED B. SHAWER1; RAMDAN M. B. SALEM2; ELANSARY B. M. EL-MEZAIEN2
1Economic Entomology Department, Faculty of Agriculture, Kafr El-Sheikh, Tanta University, Egypt
2Plant Protection Research Institute, Agriculture Research Center, Dokki, Giza, Egypt
Abstract
Ten Egyptian cotton varieties were evaluated for their susceptibility to infestation with the whitefly, B. tabaci (Genn.) under field conditions at Sakha Agricultural Research Station during three successive seasons of 1997, 1998 and 1999. It was found that Giza 89 variety had the highest rate of adult infestation (729, 484 and 501.6 adults/9 leaves) as well as the immature stages (110.9, 130.9 and 156.9 individuals/9 in2) during 1997, 1998 and 1999 seasons, respectively. On the other hand, cotton variety Giza 45 was the least infested with means, of 177.0 and 304.2 adults/9 leaves during 1997 and 1999 seasons, respectively, while for season 1998, Giza 88 had the least infestation (157.2 adults/9 leaves). As for the immature stages, the least infestation level was found in case of variety Giza 45 (18.9, individuals/9 in2) for first and second seasons.
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