Effects of Sowing Dates and Fungicide Application on Chocolate Spot (Botrytis fabae Sard.) Disease of Faba Bean (Vicia faba L.) in Western Ethiopia

Faba bean (Vicia faba L.) is a cool legume crop grown in the highlands of Ethiopia, and chocolate spot disease (Botrytis fabae Sard.) occurs wide areas. There shortage recorded data about impact on beans their management practices Ethiopia. The objectives this study were to assess influence sowing dates frequency foliar fungicide (mancozeb) application for spots determine association with occurrence. experiment was conducted 2019 2020 growing seasons at two locations Shambu Guduru, western Oromia, mean severity, AUDPC, grain yield found be statistically significant differences ( P < 0.05 ) among treatments both years. A highly negative correlation AUDPC obtained high infection rate, low from unsprayed treatment. Three applications mancozeb spray first July date have effectively reduced severity significantly increased yield. However, cost-effective environmentally eco-friendly an issue that has further investigated.