Department of Plant Pathology, College of Agriculture, Acharya N G Ranga Agricultural University, Rajendranagar, Hyderabad - 500 030, Andhra Pradesh, India.
Eight fungicides and three bio agents were evaluated in vitro against Exserohilum turcicum causing leaf blight of maize. Mancozeb @ 0.12 and 0.25% followed by carbendazim (12%) + mancozeb (63%) @ 0.05 and 0.1 completely inhibited the mycelial growth (100%). Among the bio-agents, Trichoderma viride (DOR) was effective in the inhibition of mycelial growth (71.5%) followed by Trichoderma viride (ANGRAU) which inhibited 64.9% of mycelial growth. The effective fungicide and potential biocontrol agent found effective in in vitro were tested along with mono potassium phosphate, potassium silicate aagainst the turcicum leaf blight of maize under field conditions during Rabi 2009–2010. Among all the combinations, the mancozeb (0.25%) + T. viride (0.4%) + mono potassium phosphate (1%) + potassium silicate (1%) were found effective in reducing turcicum leaf blight.
Maize, turcicum leaf blight, Exserohilum turcicum, in vitro, Trichoderma viride, mono potassium phosphate, potassium silicate
