Fortschritte in der Pflanzenwissenschaft und -technologie

Abstrakt

Evaluation of Damu 45% SC Fungicide against Chocolate Spot (Botrytis fabae Sardina), Ascochyta Blight (Ascochyta fabae f.sp.fabae) and Rust (Olpidium viciae Kusano) on Faba Bean (Vicia faba L)

Zerhun Toas Lora

In Ethiopia, the average yield of Faba bean crop is about 2.53 t ha-1 which is less than yield potential (8 t ha-1). Some diseases on faba bean have significant and/or intermediate importance in terms of yield reduction and aggressiveness. The crop is severely attacked by seven major fungal diseases, of which the three most economically important foliar diseases are chocolate spot (Botrytis fabae), Ascochyta blight (Ascochyta fabae S), and Rust (Uromyces viciae fabae). Field experiment was conducted to verify the effectiveness of the Damu 45% S C Fungicide (Carbendazim 400 g/ lit+ Hexaconazole 50 g/lit) against Chocolate Spot (Botrytis fabae Sardina), Ascochyta Blight (Ascochyta fabae f.sp. fabae) and Rust (Olpidium viciae Kusano) on Faba Bean (Vicia faba L) on Faba bean were tested at Kokate, Dalibo Wogane and Bossa Qacha on farmers’ field in a Randomized Complete Block Design (RCBD) with five replications during 2022. The experiment result showed that, fungicide treated plots were showed significant difference compared to the control treatments in all variables. Evidence obtained from the verification trial showed that even if there is no statistically significant difference observed between candidate (test) fungicide (Damu 45% SC) and standard fungicide (Tilt 250 EC) in all diseases parameters measured at five locations, the candidate (test) fungicide (Damu 45% SC) with active ingredient Carbendazim 400 g/lit+ Hexaconazole 50 g/lit at the rate of 0.5 lit/ha with 250 liter of water acted better in reducing diseases incidence, percentage Severity index , area under disease progress curve and increased grain yield (kg/ha) of the faba bean as compared to the standard fungicide (Tilt 250 EC) and unsprayed checks in tested locations. In nut shell, it is concluded that Damu 45% SC at the rate of 0.5 lit/ha with 250 liter of water was found the best by minimizing Chocolate spot, Ascochyta blight and Rust diseases in all experimental locations as compared to the standard check (Tilt 250 EC) and unsprayed checks in both locations. However, it needs further investigation for the interval and frequency.