Annals of Plant Protection Sciences
  • Year: 2017
  • Volume: 25
  • Issue: 2

Efficiency of plant extracts and Trichoderma sp. against Turcicum leaf blight of Maize caused by Exserohilum turcicum (Pass.) Leonord and Suggs

Department of Plant Pathology, Sam Higginbottom Univerisity of Agriculture, Technology and Sciences, Allahabad-211 007 (U.P.), India

*nayanahallivishwa@gmail.com

Online published on 24 February, 2018.

Abstract

Mancozeb @ 0.25% was effective in the inhibition of mycelial growth (85.2%) of Exserohilum turcicum. Among the bio-agents, Trichoderma harzianum was found effective in the inhibition of mycelial growth (64.1%) followed by T. viride with inhibition (58.7%). NSKE @ 5% was found effective in the inhibition of mycelial growth (54.4%) followed by aloe-vera @ 10% (40.0%) and lantana leaf extract @ 10% (17.7%). The plant extracts, potential biocontrol agent and fungicide found effective in vitro were tested against the turcicum leaf blight of maize under field conditions. Among, all the treatments, mancozeb @ 0.25% was found effective in the disease reduction (36.1%), followed by T. harzianum @ 2% (32.3%), T. viride @ 2% (29.2%). Plant extracts, NSKE @ 5% was found effective in disease reduction (23.5%) followed by aloe-vera @ 10% with (22.7%) and lantana leaf extract @ 10% (11.8%).

Keywords

Bio-agents, Exserohilum turcicum, Plant extracts, Zea mays.