While soybean is one of the main crops produced in Brazil, it can have severe losses of
production due to the incidence of Asian rust caused by the fungus Phakopsora pachyrhizi.
Fungicide application is the main method of rust control. In order to reduce application costs,
there has been a trend to reduce spray volumes. The purpose of this study was to evaluate
the effectiveness of applying the commercial mixture trifloxystrobin+ prothioconazole (Fox®)
in different spray mixture volumes on the leaves of the lower, middle and upper thirds of …