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Journal of Plant Protection and Pathology
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Abdel-Salam, A., El-Serafi, H., Mesbah, A., Abdel-Hamed, G. (2010). EVALUATION OF THE ROLE OF CERTAIN MORTALITY FACTORS OF Coccinella undecimpunctata L. (COLEOPTERA: COCCINELLIDAE) ON DIFFERENT CROPS AT KAFR EL-SHEIKH GOVERNORATE.. Journal of Plant Protection and Pathology, 1(1), 43-49. doi: 10.21608/jppp.2010.86655
A. H. Abdel-Salam; Hala A. K. El-Serafi; A. H. Mesbah; Ghada M. Abdel-Hamed. "EVALUATION OF THE ROLE OF CERTAIN MORTALITY FACTORS OF Coccinella undecimpunctata L. (COLEOPTERA: COCCINELLIDAE) ON DIFFERENT CROPS AT KAFR EL-SHEIKH GOVERNORATE.". Journal of Plant Protection and Pathology, 1, 1, 2010, 43-49. doi: 10.21608/jppp.2010.86655
Abdel-Salam, A., El-Serafi, H., Mesbah, A., Abdel-Hamed, G. (2010). 'EVALUATION OF THE ROLE OF CERTAIN MORTALITY FACTORS OF Coccinella undecimpunctata L. (COLEOPTERA: COCCINELLIDAE) ON DIFFERENT CROPS AT KAFR EL-SHEIKH GOVERNORATE.', Journal of Plant Protection and Pathology, 1(1), pp. 43-49. doi: 10.21608/jppp.2010.86655
Abdel-Salam, A., El-Serafi, H., Mesbah, A., Abdel-Hamed, G. EVALUATION OF THE ROLE OF CERTAIN MORTALITY FACTORS OF Coccinella undecimpunctata L. (COLEOPTERA: COCCINELLIDAE) ON DIFFERENT CROPS AT KAFR EL-SHEIKH GOVERNORATE.. Journal of Plant Protection and Pathology, 2010; 1(1): 43-49. doi: 10.21608/jppp.2010.86655

EVALUATION OF THE ROLE OF CERTAIN MORTALITY FACTORS OF Coccinella undecimpunctata L. (COLEOPTERA: COCCINELLIDAE) ON DIFFERENT CROPS AT KAFR EL-SHEIKH GOVERNORATE.

Article 5, Volume 1, Issue 1, January 2010, Page 43-49  XML PDF (307.2 K)
Document Type: Original Article
DOI: 10.21608/jppp.2010.86655
Authors
A. H. Abdel-Salam1; Hala A. K. El-Serafi1; A. H. Mesbah2; Ghada M. Abdel-Hamed2
1Economic Entomology Dept., Fac. of Agric., Mansoura Univ., Mansoura 35516, Egypt
2Plant Protection Res. Inst., Agric. Res. Center, Ministry of Agric., Giza, Egypt
Abstract
The present study was carried out in both laboratory and the experimental field of Sakha Agricultural Research Station, Kafr El-Sheikh Governorate during two successive seasons (2008 and 2009) to evaluate the role of certain mortality factors in reducing the field populations of Coccinella undecimpunctata L. on different crops. The coccinellid predator was recorded to be parasitized by the two hymenopterous parasitoids, Tetrastichus coccinellae Kurdjumove (Eulophidae), and to be infected with bacteria Bacillus spp. and two species of fungi (Penicillium sp. and Fusarium sp.).
Overall crops during 2008, the highest percentage of the total population mortality was caused by parasitoids (49.88%) and the lowest by unknown mortality (2.24%), as well as the highest contribution in the total mortality was recorded by parasitoids and the lowest by unknown mortality. The mortality was caused by fungi came in the second rank (6.73%) and contributed to (10.71%) of total mortality. Mortality was caused by bacteria contributed with low percentage in the total mortality (6.35%). During 2009, on different crops, the highest percentage of the total population mortality was caused by parasitoids (48.27%) and the lowest by bacteria mortality (4.70%), as well as the highest contribution in the total mortality was recorded by parasitoids and the lowest by bacteria mortality. The mortality was caused by unknown came in the second rank (8.91%) and contributed to (12.90%) of total mortality. Mortality was caused by fungi came in the third rank and contributed with 10.39% in the total mortality.
Keywords
Coccinella undecimpunctata; mortality factors; parasitism; fungi; bacteria
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