Asked November 22, 2021, 2:42 PM EST
I have yellowish brown spots on windows and siding . Below the windows, I planted Clethra, per county regulations that I needed to plant 4 native bushes. The spots are only around the area of the bushes. Other parts of our house, on the same side but not near the bushes, do not have the yellow spots. This is the first year the plants have been in the ground a full growing season and also the 1st year that the spots have appeared. We have tried just about everything to remove the spots but they seem to stick to the glass and siding despite using soap, window cleaners, professional window cleaning, etc. Are the spots coming from seed pods of the plants? I did some research and found references to bee poop causing yellow spots on cars. I would appreciate any thoughts on the origin of the spots and how to get rid of them.
Anne Arundel County Maryland