Vol. 11, Special Issue 5 (2022)

Author(s):
Abhinav, RN Bunker, Nitisha Gahlot and Pokhar Rawal

Abstract:
A roving intensive survey was conducted during 2017 and 2018 to assess the incidence and distribution of isabgol wilt caused by Fusarium oxysporum Schlecht in different Agro climatic zones (IVA, IIB and IVB) of Rajasthan. Total forty three villages of different zones were surveyed involving five isabgol fields from every village and numbers of wilted plants were recorded in one meter square in each field. Maximum wilt incidence 34.74% was recorded in Zone IVA and minimum was recorded in zone IIB 30.51%. District wise maximum incidence 40.65% was recorded in Udaipur district followed 36.03% in Chittorgarh, 32.42% in Pratapgarh, 30.51% in Pali and minimum disease incidence 27.43% was recorded in Sirohi district. Survey data revealed that wilt disease of isabgol causes significant loss to isabgol crop and leading to low production and productivity in Rajasthan.