Vol. 11, Issue 10 (2022)

Author(s):
Sunita Rani, Sachin Gupta and SK Singh

Abstract:
To manage turcicum leaf blight of maize, six systemic, three non-systemic, two combination fungicides and leaf extract of different plant species were evaluated against Exserohilum turcicum under in vitro conditions. Isolates of bioagents were also collected from different maize growing fields of Jammu division and tested under in vitro studies revealed that Trichoderma harzianum (bio agent), Datura stramonium (leaf extract), Propiconazole (systemic) and mancozeb (non-systemic) were most effective in inhibiting mycelial growth of E. turcicum. Under field studies, Propiconazole showed maximum disease inhibition and this treatment was at par with integrated treatment comprising of mancozeb (seed treatment) @ 0.25%, Trichoderma harzianum (s.t) followed by foliar sprays of Datura stramonium extract (50%) and mancozeb (f.s) which showed minimum disease incidence intensity (16.16%) coupled with maximum yield of 39.52 q/ha.