الفهرس 
Survey of tomato early blight disease incidenceOnly 14 pages are availabe for public view
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Abstract
Tomatoes (Solanum lycopersicum L.), Family: Solanaceae, represents one of the most important and economic vegetable crops in the world including Egypt. Early blight disease caused by Alternaria solani, is considered the most dangerous disease on tomato yield of the entire world. The main goal of this study was to minimize the use of synthetic fungicide by fungal and bacterial isolates bioagents such as Trichoderma sp., Bacillus sp. and Pseudomonas sp. Thirty-one different isolates of A. solani were isolated and identified from infected tomato leaves and fruits collected from El-Gharbiya, Kafr El-Sheikh and El-Beheira governorates during 2008 and 2009 growing seasons.In an in vitro experiment, isolates of Trichoderma harzianum (T3, T25 and T26), Trichoderma viride (T28 and T32), Bacillus subtilis (B1 and B5) and Pseudomonas fluoresens (B7) showed the highest antagonistic effect against A. solani A16 (the most virulent isolate).