Eagle 20EW is a systemic fungicide in a 1-pint (16 oz) container, containing myclobutanil, used for controlling common turf, ornamental, and some fruit diseases like dollar spot, powdery mildew, rust, and brown patch on golf courses, lawns, ornamentals, and backyard trees, working from the inside out as a preventative and curative treatment. It's made by Dow AgroSciences (now part of Corteva) and is applied as a liquid concentrate, requiring dilution and regular application for best results.