Abstract:
Efficacy of two new fungicides Amistar and Score, yet to be introduced to farmers and planters in India, was evaluated under laboratory, greenhouse and field conditions. Three common grapevine diseases viz., downy mildew, powdery mildew and anthracnose caused by Plasmopara viticola, Uncinula necator and Gloeosporium ampelophagum respectively and blister blight disease of tea caused by Exobasidium vexans were studied in this investigation. In vitro spore germination assay revealed that both Azoxystrobin and Difenoconazole were superior to other fungicides at 0.05% concentration in arresting the germination of the propagules of the pathogens studied. In greenhouse and field evaluations also Azoxystrobin and Difenoconazole proved to be superior over other fungicides in controlling the grapevine diseases and blister blight of tea to the maximum extent at 0.05% concentrations.
S.Nithyameenakshi , P.R. Jeyaramraja and S. Manian , 2006. Evaluation of Azoxystrobin and Difenoconazole Against Certain Crop Diseases. International Journal of Agricultural Research, 1: 420-431.
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