Compatibility of Azoxystrobin 23 SC with Biocontrol Agents and Insecticides

Abstract

An experiment was conducted to study the compatibility of azoxystrobin 23 SC with bacterial and fungal biocontrol agents and insecticides under in vitro and glass house conditions, respectively. Bacterial biocontrol agents viz., Pseudomonas fluorescens and Bacillus subtilis were compatible with azoxystrobin 23 SC even at a high concentration of 300 ppm whereas fungal biocontrol agent Trichoderma viride was inhibited by azoxystrobin 23 SC at a concentration above 15 ppm. Among the four insecticides tested for compatibility, all insecticides were physically compatible with azoxystrobin 23 SC at 125, 250 and 500 g ai ha -1 whereas dichlorvos was biologically incompatible even at the lowest concentration tested.