Evaluation of Azoxystrobin 7.5% and Propiconazole 12.5% SE against Foliar Diseases in Groundnut

Abstract

Groundnut is one of the important oilseeds of the world suffer from fungal diseases like early and late leaf spots and rust. These diseases are most economically important foliar diseases of groundnut causing severe damage to the crop are the major constraints in the cultivation. To know the efficacy of combiproduct, Azoxystrobin 7.5% + Propiconazole 12.5% SE, field experiments were laid out in Randomized Block Design with seven treatments and three replications during Rabi 2014-15 and Rabi 2015-16. During Rabi 2014-15, the treatment Azoxystrobin 7.5% + Propiconazole 12.5% SE @ 1000 ml/ha recorded 8.56 PDI of rust disease and 10.85 PDI of tikka disease with the yield of 25.25 q/ha followed by Azoxystrobin 7.5% + Propiconazole 12.5% SE @ 875 ml/ha recorded 8.85 PDI of rust disease and 11.34 PDI of tikka disease with the pod yield of 24.85 q/ha compared to 30.33 PDI of rust disease and 36.78 PDI of tikka disease recorded in untreated control with the pod yield of 15.14 q/ha. Similar trend was also observed during the second season of Rabi 2015-16, where Azoxystrobin 7.5% + Propiconazole 12.5% SE @ 1000 ml/ha recorded 10.07 PDI of rust and 9.00 PDI of tikka with the yield of 25.41q/ha which was on par with Azoxystrobin 7.5% + Propiconazole 12.5% SE @ 875 ml/ha (10.24 PDI of rust disease and 9.67 PDI of tikka disease with yield of 25.18q/ha) and maximum PDI of rust 33.67 and tikka 40.25 PDI with yield of 16.35 q/ha were recorded in untreated control treatment. The foliar application of Azoxystrobin 7.5% + Propiconazole 12.5% SE @ 875 ml/ha and Azoxystrobin 7.5% + Propiconazole 12.5% SE @ 1000 ml/ha were found on par in controlling of Rust and Tikka disease incidence and resulting higher pod yield of groundnut during both the seasons.