Status of late blight disease (Phytophthora infestans) of potato at Gurez in Jammu and Kashmir
Abstract
Late blight (Phytophthora infestans), was found prevalent in all the potato growing villages of Gurez with incidence 9.99 to 53.33% and 14.76 to 57.77% and intensity 6.61 to 38.90% and 5.71 to 46.75% in 2011 and 2012, respectively. The maximum mean disease incidence (24.44% in 2011 & 55.55% in 2012) and intensity (15.95 in 2011 & 42.82% in 2012) was recorded in village Wanpora of lower Gurez and minimum mean disease incidence (13.88 & 28.88% include similarly) and intensity (6.16 & 17.72%) was recorded in village Gujran of Upper Gurez. Both the late blight incidence and intensity increased with crop growth stage from flowering to dehaulming in both the years.
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