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Mahmoud, M., Darwish, Y., Omar, Y., Hassan, R. (2011). SUSCEPTIBILITY OF SOME EGYPTIAN WHEAT VARIETIES TO THE INFESTATION WITH THE GRANARY WEEVIL, Sitophilus granarius (L). (COLEOPTERA: CURCULIONIDAE).. Journal of Plant Protection and Pathology, 2(9), 773-781. doi: 10.21608/jppp.2011.86524
M. A. Mahmoud; Y. A. Darwish; Y. M. Omar; R. E. Hassan. "SUSCEPTIBILITY OF SOME EGYPTIAN WHEAT VARIETIES TO THE INFESTATION WITH THE GRANARY WEEVIL, Sitophilus granarius (L). (COLEOPTERA: CURCULIONIDAE).". Journal of Plant Protection and Pathology, 2, 9, 2011, 773-781. doi: 10.21608/jppp.2011.86524
Mahmoud, M., Darwish, Y., Omar, Y., Hassan, R. (2011). 'SUSCEPTIBILITY OF SOME EGYPTIAN WHEAT VARIETIES TO THE INFESTATION WITH THE GRANARY WEEVIL, Sitophilus granarius (L). (COLEOPTERA: CURCULIONIDAE).', Journal of Plant Protection and Pathology, 2(9), pp. 773-781. doi: 10.21608/jppp.2011.86524
Mahmoud, M., Darwish, Y., Omar, Y., Hassan, R. SUSCEPTIBILITY OF SOME EGYPTIAN WHEAT VARIETIES TO THE INFESTATION WITH THE GRANARY WEEVIL, Sitophilus granarius (L). (COLEOPTERA: CURCULIONIDAE).. Journal of Plant Protection and Pathology, 2011; 2(9): 773-781. doi: 10.21608/jppp.2011.86524

SUSCEPTIBILITY OF SOME EGYPTIAN WHEAT VARIETIES TO THE INFESTATION WITH THE GRANARY WEEVIL, Sitophilus granarius (L). (COLEOPTERA: CURCULIONIDAE).

Article 1, Volume 2, Issue 9, September 2011, Page 773-781  XML PDF (387.44 K)
Document Type: Original Article
DOI: 10.21608/jppp.2011.86524
Authors
M. A. Mahmoud1; Y. A. Darwish2; Y. M. Omar2; R. E. Hassan1
1Plant Protection Dept., Fac. Agric., Al-Azhar Univ., Egypt
2Plant Protection Dept., Fac. Agric., Assiut University, Egypt
Abstract
The present investigation was carried out to evaluate the relative susceptibility of ten Egyptian wheat varieties to the infestation with the granary weevil, Sitophilus granarius (L). The loss in grain weight and the percentage of infested grains were determined in choice and force infestation tests. The obtained results, either in the choice or non-choice infestation tests, indicated that non of the tested varieties were completely resistant against the attack by the insect pest; but their susceptibility to the infestation varied considerably. Variety Gemmiza 7 was the most susceptible with an average infestation level of 18.33% and a maximum weight loss of 6.41 g/100 g grains. Oppositely, variety Beny-sewif 4 was the least susceptible with an infestation level of 3.00% and minimum weight loss of 1.64 g/100 gm. A significant positive correlation was found between the infestation of grains and weight loss (r= 0.86-0.                  95**). 
Keywords
Stored grain pests; wheat varieties; Sitophilus granarius; susceptibility
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