Synthesis of fungicides by biodegradation to control tomato diseases

The present investigations on early blight (Alternaria solani) disease of tomato was conducted during 2014 and 2015 at Plant Pathology Department, Seed and Tissue Pathology Lab (SEPA), Central Laboratory, Faculty of Agriculture, Mansoura University, Egypt. Three concentrations of biodegradable lubricant 55, 110 and 220 µg/mlfor petroleum wastes were resulted from two biodegradable isolates (First is white rot fungi Phanerochaetechrysosporium and the second is bacteria Pseudomonas fluorescens NRRL 340) were tested to against early blight (Alternaria solani) disease of tomato in vitro and in vivo. This study recommended that application of 220 µg/ml, completely reduced mycelial growth, spore germination and germ tube length of the fungus A. solani(Al-TawfiqiyahBadr isolates). Also showed highly effect of biodegradable lubricant at 220 µg/ml in reduction of disease incidence, disease severity and greatly affect chemical analysis, growth parameters and yield.