1. Sounds like iris thrips have invaded the plants. Cut back infected plant parts and destroy. Next spring spray with an insecticidal soap every 3 days as soon as the stems start to emerge. The thrips live in the soil and invade the tuber so if you decide to move the iris to fresh soil without any thrips you will need to soak the rhizomes or roots of the iris in hot water (120 degrees) for 30 minutes to kill the thrips. 2. After the azaleas bloom cut them back hard so that you remove two thirds of the growth. Clean up all around the plants removing all infected leaves. Put down a fresh mulch to seal in any disease spores that have fallen to the ground. Thin out the inner branches to give your azaleas more air circulation and try to keep the foliage dry by not watering from overhead. Thin nearby trees to allow more sun. If shrubs do not produce healthy leaves by end of summer dig and remove and do not plant azaleas in the same spot. Using a fungicide on infected plants may help but is not practical on large plants. Keep growing, Marianne Binetti