You should always disinfect garden gloves after treating black spots so that you can safely use them again in the future. Disinfect garden gloves after treating black spots with help from a certified horticulturist in this free video clip. Expert: Donna Emery Filmmaker: Jeff Goodey Series Description: Gardening is a great way to pass the time and make sure that you have a great environment to come home to. Get tips on gardening with help from a certified horticulturist in this free video series.