Comparative effect of Pseudomonas sp., Neem leaf extract and fungicides against leaf blight Alternaria alternata disease of chickpea

Abstract

An experiment was conducted to evaluate the effect of four chemicals, one bio agents and one plant extract in field condition against Alternaria alternata causing leaf blight of chickpea. Under field conditions during rabi 2016-2017. Among all the treatments, propiconazole @ 0.1% was found effective in the disease reduction (26.50%), followed by hexaconazole @ 0.1% (27.55%), mancozeb@ 0.2% (28.79%), carbendazim @ 0.1% (28.99%). Among the bioagent and plant extract, Pseudomonas fluorescens @ 2.0 % was found effective in disease reduction (30.99%) followed by neem leaf extracts @ 20% with (34.64%) and least effective in disease reduction was seen in control. Plant height and yield was also shown highest in propiconazole @ 0.1%, followed by hexaconazole @ 0.1%, mancozeb@ 0.2%,carbendazim @ 0.1%.