Answer: Iris are subject to fungal infections and it sounds like this is one of them. The best strategy is to clean up and remove and destroy any infested iris trash as it happens and again in the fall to reduce the chances of reinfection next year. Also avoid excessive fertilization and/or overwatering as this will encourage disease problems. You might also wish to contact your County Extension (756-5553) for their most up to date recommendations on an appropriate fungicide and its best application schedule for your area.
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