Department of Plant Pathology, Dr. Panjabrao Deshmukh Krishi Vidyapeeth, Akola–444 104 (MS), India. e-mail: prashant_rakhonde@rediffmail.com
Experiments were conducted to assess the efficiency of different fungicides, plant extracts and culture filtrate of bioagent against powdery mildew of green gram caused by Erysiphe polygoni under in vitro and in vivo conditions. Among all the tested fungicides, 0.05% tridemorph recorded highest (85.11%) inhibition of spore germination in vitro followed by plant extract 5% Terminali belerica (66.45%) and culture filtrate of Pseudomonas fluorescens (63.93%). Maximum disease reduction (69.11%) was obtained in tridemorph and diphenconazole applied @ 0.05% and 0.1%, respectively. Highest number of pods/plant (17.27), pods weight/plant and grain weight/plant were observed with penconazole application. Among plant extracts, maximum (57.22%) disease reduction was observed in behada and the bioagent P. fluorescens filtrate showed 51.22% reduction of powdery mildew in green gram under field condition.
Green gram, Pseudomonas fluorescens, Terminali belerica, Tridemorph, Yield contributing parameters
