Iprodione is a dicarboximide contact fungicide used to control a wide variety of crop diseases. Iprodione is used on vegetables, ornamentals, pome and stone fruit, root crops, cotton, and sunflowers to control fungal pests, and may also be used as a post harvest fungicide and as a seed treatment. Iprodione inhibits the germination of spores and the growth of the fungal mat (mycelium).