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Taha, M., Abd-el Wahab, H., Mahmoud, H., Abd el hamed, G. (2012). POPULATION DENSITY OF SOME INSECT PESTS INFESTING GLOBE ARTICHOKE PLANTATIONS IN RELATION TO CERTAIN ECOLOGICAL FACTORS AT DAKAHALIA GOVERNORATE. Journal of Plant Protection and Pathology, 3(4), 347-353. doi: 10.21608/jppp.2012.83774
M. A. Taha; Horia A. Abd-el Wahab; Hanaa I Mahmoud; Ghada EL S. Abd el hamed. "POPULATION DENSITY OF SOME INSECT PESTS INFESTING GLOBE ARTICHOKE PLANTATIONS IN RELATION TO CERTAIN ECOLOGICAL FACTORS AT DAKAHALIA GOVERNORATE". Journal of Plant Protection and Pathology, 3, 4, 2012, 347-353. doi: 10.21608/jppp.2012.83774
Taha, M., Abd-el Wahab, H., Mahmoud, H., Abd el hamed, G. (2012). 'POPULATION DENSITY OF SOME INSECT PESTS INFESTING GLOBE ARTICHOKE PLANTATIONS IN RELATION TO CERTAIN ECOLOGICAL FACTORS AT DAKAHALIA GOVERNORATE', Journal of Plant Protection and Pathology, 3(4), pp. 347-353. doi: 10.21608/jppp.2012.83774
Taha, M., Abd-el Wahab, H., Mahmoud, H., Abd el hamed, G. POPULATION DENSITY OF SOME INSECT PESTS INFESTING GLOBE ARTICHOKE PLANTATIONS IN RELATION TO CERTAIN ECOLOGICAL FACTORS AT DAKAHALIA GOVERNORATE. Journal of Plant Protection and Pathology, 2012; 3(4): 347-353. doi: 10.21608/jppp.2012.83774

POPULATION DENSITY OF SOME INSECT PESTS INFESTING GLOBE ARTICHOKE PLANTATIONS IN RELATION TO CERTAIN ECOLOGICAL FACTORS AT DAKAHALIA GOVERNORATE

Article 2, Volume 3, Issue 4, April 2012, Page 347-353  XML PDF (285.84 K)
Document Type: Original Article
DOI: 10.21608/jppp.2012.83774
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Authors
M. A. Taha1; Horia A. Abd-el Wahab2; Hanaa I Mahmoud1; Ghada EL S. Abd el hamed2
1Science College, Al Azhar Univ., Cairo, Egypt
2Plant Protection Research Institute, ARC, Dokki- Giza, Egypt
Abstract
Field experiments were conducted at Dakahlia Governorate during two successive seasons 2007/2008 and 2008/2009 to study the population density of some insect pests infesting globe artichoke plantations namely Capitophorus horni Born, Empoasca discipiens Poali, Autographa gamma Linn. and Spodoptera littoralis (Biosd). Also the effect of certain weather factors (daily mean temperatures and daily mean R.H.) and plant age were studied on the population dynamics of the various insect pests. The weather factors and plant age had insignificant effect on the population density of C. horni, E. discipiens, A. gamma and S. littoralis. Also, the relative humidity had shown significant effect on population density of the four insect pests during the two seasons 2007/2008 and 2008/2009. The percentage of explained variance was 92.5& 86.5 during the two successive seasons, respectively. 
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