My once lively and rapid growing azalea is now losing its leaves, which have a very sickly appearance! The underside of the leaves have a bunch of small, dark brown spots (they look like tiny oil spots)...the tops of the leaves have a "moldy" appearance, although there isn't any actual mold on them! I love this peach and cream flowering azalea...PLEASE HELP!
It looks like you have 2 issues. The larger necrotic spots look like Cercospora leaf spot and the smaller white stippling and black dots are probably the lace bugs and their poops.
http://www.ipm.ucdavis.edu/PMG/PESTNOTES/pn7428.html
http://www.ct.gov/caes/lib/caes/documents/publications/fact_sheets/plant_pathology_and_ecology/common_problems_of_rhododendron_and_azalea_03-11-11r.pdf
Make sure you clean up all the fallen leaves too.
Thank you thank you! I did finally see the lace bugs...although I didn't know what they were...and suspected the leaf problem! Thanks again...HERE'S HOPING!!
