maple tree,i can see that scale is on the bark , small white dots, also bark is peeling away...
from tree and alot of small pen holes are in tree and bark thanks for answer rick south carolina upstate
You can try horticultural oil which are specially formulated mineral oil. They fill the spiracles (air holes) of the trees and suffocate the scale (and aphids, mites) before they can emerge.
Dormant oil have a high phytotoxicity (they kill leaves) so use them before the maple awakens.
you can use summer oils after that.
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