Rate of Stripe Rust (<i>Puccinia striliformis</i>) at Ada’a, Lume and Gimbichu Districts of East Shewa Zone, Ethiopia

Abstract

Stripe (Yellow) rust caused by<i> Puccinia striiformis </i>f.sp. <i>tritici (Pst) </i>is important wheat diseases causing serious damage on cultivated susceptible wheat variety. The wheat yellow rust assessment was conducted during main rainy season of 2018/19 at Ada’a, Lume and Gimbichu using zigzag method of diseases assessment. Disease data’s, agro-eological data and other important parameters were recorded. The disease was prevalent at all districts by diverse incidence and severity ranges. This implies that yellow rust is distributed wheat disease at all surveyed potential districts. The highest yellow rust prevalence 62.5% was recorded at Gimbichu district: conversely; the lowest prevalence percentage 31.25% was recorded at Ada’a district. The highest severity and incidence of yellow rust 60% and 100%, respectively was recorded at Ada’a district with susceptible reaction; while the lowest severity and incidence (30% and 5%) respectively was recorded at Lume districts with moderately susceptible reaction. Yellow rust is governed by many for the distributions and occurrence. Highest yellow rust incidence 100 S was recorded from field cultivated with bread wheat kakaba and Kubsa varieties at growth stage of Milk to matured stage. Local cultivar has shown lowest incidence and severity percentage with moderately susceptible responses than improved varieties.