The prevalence of favorable weather conditions during the month of April to June. Disease incidence increased of scab was more in Auli and Gangotri valley then Purola- Naugaon, Tuni, KotiKanasar and Gwaldam of Garhwal hills. The study area included seven districts of Garhwal division and six district of Kumaon division. Scab was wide spread appearance in all the areas surveyed and incidence varied from 0 to 100 percent in tree. | Prevalence and severity of apple scab in Uttarakhand Hills
