You have lace bugs. Very common on Azaleas in Metairie and New Orleans. These insects tend to attack plants that are weakened due to poor fertilizing or watering. Use Insecticidal Soap or Neem Oil. Make sure to spray the undersides of leaves. May need several applications for proper control. Need advice just give us a call.
Clean Cut Landscape Co.
Mario Boesch
(504)415-1438