Azalea petal blight treatment
Our plant pathologist looked at your photos and does not see signs of petal blight. When petal blight is present, the petals turn brown quickly and then you would see small black structures. The white azaleas are more susceptible to petal blight. There is no cure for it once symptoms are present. You would have to spray with a preventative fungicide early in the season when the buds begin to turn color. We do not recommend any treatment at this time.