Anyone know what these white spots are?
by
Lin6417041
+4
looks like a fungus to me, or may be a moss. Are you having warm humid weather?
It looks like lichen. It grows on many trees and does no harm. However, if the foliage or bark starts to show signs of ill health, then the lichen (a symbiotic growth of fungus and algae) may have entered the tree's circulatory system and become parasitic. That, however, is very rare.
Looks like moss to me I have that problem also .it was on my garden shed had to scrap it off rain would not take it off . Am getting the tree remove it is starting to die .it is a ash tree .we have ash bores in WV and killing a lot of trees here .
this looks like the moss that grows on the north side of a tree (old way to know what direction you are walking).
Lichen, type of moss.
Looks like a maple tree and there was a maple blight that distorted lots of them. It is on my Japanese maple.call in a tree service
spray this on
(Fruit Tree, Vegetable & Ornamental Fungicide, 1 Pint Concentrate)