My azaleas have something that eat it's leaves every year. Tiny white dots appear on the leaves late summer or fall. It is a sap sucker of some kind. I got some Neem oil to spray on them before they get bugs. Is this a good treatment and when is the best time to spray them?
Union County Pennsylvania
A common pest of azalea is the lace bug (not to be confused with the lace wing, a beneficial predator). Here is a link to a fact sheet that describes azalea lace bugs and offers several options for controlling the pest.