OCCURRENCE AND IMPORTANCE OF CUCURBITS DOWNY MILDEW DISEASE IN EGYPT
FADL, F., YEHIA, A., ABDEL-KADER, D., MAHROUS, M., GHONIM, M. (1996). OCCURRENCE AND IMPORTANCE OF CUCURBITS DOWNY MILDEW DISEASE IN EGYPT. EKB Journal Management System, 74(4), 889-902. doi: 10.21608/ejar.1996.431158
FAHMY A. FADL; ABDEL-RAHMAN H. YEHIA; DAWLAT A. ABDEL-KADER; MOHAMED M. MAHROUS; MAGDY I. GHONIM. "OCCURRENCE AND IMPORTANCE OF CUCURBITS DOWNY MILDEW DISEASE IN EGYPT". EKB Journal Management System, 74, 4, 1996, 889-902. doi: 10.21608/ejar.1996.431158
FADL, F., YEHIA, A., ABDEL-KADER, D., MAHROUS, M., GHONIM, M. (1996). 'OCCURRENCE AND IMPORTANCE OF CUCURBITS DOWNY MILDEW DISEASE IN EGYPT', EKB Journal Management System, 74(4), pp. 889-902. doi: 10.21608/ejar.1996.431158
FADL, F., YEHIA, A., ABDEL-KADER, D., MAHROUS, M., GHONIM, M. OCCURRENCE AND IMPORTANCE OF CUCURBITS DOWNY MILDEW DISEASE IN EGYPT. EKB Journal Management System, 1996; 74(4): 889-902. doi: 10.21608/ejar.1996.431158

OCCURRENCE AND IMPORTANCE OF CUCURBITS DOWNY MILDEW DISEASE IN EGYPT

Egyptian Journal of Agricultural Research
Article 2, Volume 74, Issue 4, December 1996, Pages 889-902    PDF (3.69 M)
Document Type: Original Article
DOI: 10.21608/ejar.1996.431158
Authors
FAHMY A. FADL1; ABDEL-RAHMAN H. YEHIA2; DAWLAT A. ABDEL-KADER2; MOHAMED M. MAHROUS1; MAGDY I. GHONIM1
1Plant Pathology Research Institute, Agricultural Research Center, Giza, Egypt
2Faculty of Agriculture, Cairo University, Giza, Egypt
Abstract
Downy mildew of cucurbits, caused by Pseudoperonospora cubensis (Berk. & Curt.) Rostow, is one of the most important economic diseases which attack cucurbits causing great losses in the yield under open field. The highest disease severity was recorded in Nily season, while the low­est was in Summer season. Percentage of disease severity at Kalubia governorate was less than those at Sharkia and Ismailia in Nily season. The highest percentage of disease severity was obtained when the plants were inoculated with 7.5 x 103 sporangia/ml, _while 2.5 x 103 sporangi/ml gave the lowest percentage. High disease severity was re­ported on cucumber, snakemelon and cantaloupe, while the lowest dis­ease severity was on watermelon, loofah and squash plants.
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