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PRINT ISSN : 2319-7692 Online ISSN : 2319-7706 Issues : 12 per year Publisher : Excellent Publishers Email : editorijcmas@gmail.com / submit@ijcmas.com Editor-in-chief: Dr.M.Prakash Index Copernicus ICV 2018: 95.39 NAAS RATING 2020: 5.38 |
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, Koti- Kanasar 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. In Garhwal hills, the disease showed an increasing trend in all the apple areas, most of the areas District Dehradun (26 %), Uttarkashi (41 % %), Chamoli (21 %) and Tehri (4 %) had scab. In district Uttarkashi, the disease was found to be more prevalent and widespread, in all the villages surveyed, cent percent orchard was found infected, the highest percent infected trees being in Harsil, Dharali, Jhalla, Mukhuwa, Jochira, Cholmi Bagori, Purali, Jashpur and Shukhi. In Puraola-Naugaon (Distt Uttarkashi), Chakrata (Distt Dehradun) and Gwaldam (Distt Chamoli) fruit belt, the incidence of scab was low and it was 1 to 13 percent on leaves and 0 to 6 percent on fruits. In Purola fruit belt, the disease was rather widespread than Chakrata fruit belt. The highest percent infected orchards being in Harsil and Auli, Joshimath. The disease was most severe in leaves and fruits in both the place. The incidence of scab ranged between 05 to 65 per cent on foliage and 5 to 35 per cent on fruits and intensity ranged between 0.01 to 0.30 percent in leaves an on fruits was observed during 2004 to 2006. Most of the orchards at Harsil recorded as high incidence as 85 per cent fruit scab. Chakrata fruit belt, disease could not be seen in Chakrata, Rawna and Patti areas while in others 20 to 60 percent orchards were affected by scab. At one of the other hot spot, Tuni and Koti-Kanasar (Distt Dehradun) of Chakrata fruit belt, spring infection was less, however, secondary scab appeared in severe form during summer and the rainy season and continued until September first fortnight. In Kumaon hills, the scab incidence was negligible.
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