• Drinkal Yadav
• Ravindra Kumar
• Rekha Sharma

ABSTRACT:- Alternaria spp. (Alternaria alternata) is one of the most destructive pathogen, causing leaf blight disease in Groundnut and there by inflicting accountable quantitative (49.30%) as well as qualitative losses. The survey studies indicated that, overall leaf blight incidence was comparatively higher in Kharif (2021-2022) grown Groundnut crop, compared to that of Kharif (2022-2023) grown crop. In all the eight districts of Purvanchal region surveyed, the disease was found to be widely distributed and regular occurrence with moderate to severe incidence and it’s average incidence was found maximum in the district of Maharajganj (15.65%) followed by Gorakhpur (14.40%) and Sant kabirnagar (13.4%) districts in the years 2021-2022 and 2022-2023. The average incidence of leaf blight disease was found more in 2021-2022 (13.72%) as compared to 2022-2023 (12.88%). Of the various cultivars / varieties of Groundnut grown in the Purvanchal region, local cultivars (21.02% and 20.02%) without any proven resistance were found to suffer severely with the disease, during both the years. The most popularly grown PRAKASH was found to suffer more with about 19.08 and 16.08% (leaf blight) disease incidence during Kharif (2021-2022) and Kharif, (2022-2023), respectively. However, the cultivars viz., Amber ,Chandra, Kaushal and Chitra were found to suffer comparatively minimum with the leaf blight disease.

KEY WORDS:- Groundnut,survey, Alternaria alternata, Alternaria leaf blight disease incidence.

"Survey and Studies on Alternaria Leaf Blight Disease of Groundnut(Arachis hypogaea L. ) in Purvanchal Regions of Eastern (U. P.)", International Journal of Emerging Technologies and Innovative Research (www.jetir.org), ISSN:2349-5162, Vol.10, Issue 12, page no.g102-g110, December-2023, Available :http://www.jetir.org/papers/JETIR2312616.pdf

"Survey and Studies on Alternaria Leaf Blight Disease of Groundnut(Arachis hypogaea L. ) in Purvanchal Regions of Eastern (U. P.)", International Journal of Emerging Technologies and Innovative Research (www.jetir.org | UGC and issn Approved), ISSN:2349-5162, Vol.10, Issue 12, page no. ppg102-g110, December-2023, Available at : http://www.jetir.org/papers/JETIR2312616.pdf