Recent approaches for controlling brown spot disease of Faba Bean in Egypt

Commercial compounds of induced resistance (Bion, Starner, Boric acid and Salicylic acid) were used for controlling faba bean chocolate spot disease under greenhouse conditions. The tested compounds significantly reduced the disease severity and this was more pronounced in case of soaking faba bean seeds in Boric acid for 24 hrs at its double field dose that resulted in an efficacy of 87.61% controlling disease. The activities of peroxidase, catalase and polyphenoloxidase in the infected plants were markedly reduced in the treated infected plants. Applying tested compounds to the infected plants significantly increased total carbohydrate, total soluble protein and total phenols comparing to untreated infected plants. So it could be concluded that the used compounds could resist the detrimental effects of Botrytis fabae on the plant growth and yield.