Cavity spot caused by Pythium spp. is a significant disease in carrots, reducing harvest quality and resulting in major losses. Eco-T  was tested for control of Pythium in carrots in the Western Cape, South Africa.Soil drench applications of Eco-T were compared to a standard registered fungicide and an untreated control.   Eco-T treatment significantly reduced Pythium disease incidence and performed as well as the chemical fungicide. In addition, Eco-T treatment increased yield at harvest in comparison to the untreated control and the chemical fungicide.