C. Ruth* and M. Tagore Naik
Department of Plant Pathology, Dr. YSR Horticultural University, Horticultural College & Research Institute, Anantharajupeta, Kadapa dt., Horticultural Research Station, Mahanandi – 518502, Kurnool District, Andhra Pradesh
Received-17.05.2016, Revised-15.06.2016
Abstract: Field trials conducted against Azoxystrobin 11% + Tebuconazole 18.3% SC on Onion in Andhra Pradesh. Experimental findings withthe data pertaining to efficacy of different fungicidal formulation on the purple blotch incidence showed that all the treatments were significantly superior over control in reducing the disease severity. Azoxystrobin 11% + Tebuconazole 18.3% SC @ 750 & 1000 ml/ha is superior and lowest disease incidence was recorded (17.15 & 18.05 respectively) and proved to be the best. Highest yield was obtained in treatment sprayed with the Azoxystrobin 11% + Tebuconazole 18.3% SC @ 1000 ml/ha and it was on par with Azoxystrobin 11% + Tebuconazole 18.3% SC @ 750ml/ha with the highest cost benefit ratio of 1:2.16.
Keywords: Bio-efficacy, Azoxystrobin, Tebuconazole, Purple blotch
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