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ABBAS, M., MOUSA, S. (2003). COMPARATIVE EXISTENCE OF STEINERNEMA ABBAS! AND HETERORHABDITIS INDICUS IN SOIL OF A DATE PALM PLANTATION. Egyptian Journal of Agricultural Research, 81(3), 1073-1083. doi: 10.21608/ejar.2003.281726
MOHAMED S. T. ABBAS; SALAH A. MOUSA. "COMPARATIVE EXISTENCE OF STEINERNEMA ABBAS! AND HETERORHABDITIS INDICUS IN SOIL OF A DATE PALM PLANTATION". Egyptian Journal of Agricultural Research, 81, 3, 2003, 1073-1083. doi: 10.21608/ejar.2003.281726
ABBAS, M., MOUSA, S. (2003). 'COMPARATIVE EXISTENCE OF STEINERNEMA ABBAS! AND HETERORHABDITIS INDICUS IN SOIL OF A DATE PALM PLANTATION', Egyptian Journal of Agricultural Research, 81(3), pp. 1073-1083. doi: 10.21608/ejar.2003.281726
ABBAS, M., MOUSA, S. COMPARATIVE EXISTENCE OF STEINERNEMA ABBAS! AND HETERORHABDITIS INDICUS IN SOIL OF A DATE PALM PLANTATION. Egyptian Journal of Agricultural Research, 2003; 81(3): 1073-1083. doi: 10.21608/ejar.2003.281726

COMPARATIVE EXISTENCE OF STEINERNEMA ABBAS! AND HETERORHABDITIS INDICUS IN SOIL OF A DATE PALM PLANTATION

Article 11, Volume 81, Issue 3, September 2003, Page 1073-1083  XML PDF (2.47 MB)
Document Type: Original Article
DOI: 10.21608/ejar.2003.281726
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Authors
MOHAMED S. T. ABBAS1; SALAH A. MOUSA2
1Plant Protection Research Institute, Agricultural Research Centre, Dokki, Giza, Egypt
2Ministry of Agriculture, Ras Al-Khaima, P.O .Box 60, United Arab Emirates.
Abstract
The ontomopathogenic nematodes, Steinernema abbasi and Het­erorhabditis indicus were found to exist in a date palm plantation from January to December, 2001. Populations of S. abbasi ( expressed by per­cent mortality in larvae of Galleria mellonella (as baits) in 20 soil samples collected monthly were higher than those of H. indicus. Mortality by S. abbasi reached 100 % in March, August, October and November. The co­existence of S. abbasi and H. indicus in the soil around the trunks of palm trees resulted in successful combined infection with both species in five G. mellonella larvae during the course of this study. Such infected larvae showed the symptoms of either nematode species and the combined in­fection was detected in the second passage when some infected larvae showed symptoms of S. abbasi (no change in colour with softness of the cadaver) and others showed symptoms of H. indicus (brownish -red col­our with hardness in colour). The study was conducted in Ras Al-Khaima, United Arab Emirates.
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