Detachment of sprayed colloidal copper oxychloride-metalaxyl fungicides by a shallow water flow.

BACKGROUND Flow shear stress induced by rainfall promotes the loss of the pesticides sprayed on crops. Some of the factors influencing the losses of colloidal-size particulate fungicides are quantified by using a rotating shear system model. With this device it was possible to analyse the flow shear influencing washoff of a commercial fungicide formulation… CONTINUE READING