<div>Background: Fababean gall (Olpidium viciae) disease is a new disease in Ethiopia causing up to 100% crop losses. Treating seeds with Bayleton 25% WP fungicide was recommended for fababean growing areas. The objective of the study was to demonstrate the effectiveness of Bayleton fungicide as a seed dressing and foliar spray on fababean gall disease. 
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Methods: The demonstration was conducted on two farmers&rsquo; field as replications at Meket District Warkaye and Agrit Kebele during 2016 cropping season. The treatments were Bayleton at the rate of 0.3 kg as seed dressing with 0.7 kg/ha as foliar spray and untreated control used as a check. Disease, yield and yield related data were calculated. 
 
Result: Bayleton treated plot was completely inhibit the severity and maximum disease severity was scored from control treatment 45.43 and 51.5% at Warkaye and Agrit Kebele, respectively. The mean grain yield (kg/ha) of treated plot was 2910.7 and 1584.2. And also, untreated plot gave 1670.1 and 372.67 kg/ha at Warkaye and Agrit Kebele respectively. Therefore, Bayleton fungicide at the rate of 0.3 kg per 100 kg fababean seed as seed treatment can control the disease and has to be scaled out for the study area and similar agro ecologies.</div>

Demonstration of Bayleton Fungicide for the Management of Fababean Gall (Olpidium viciae Kusano) Disease at Meket District, Eastern Amhara Ethiopia