I just plucked them off 2-3 weeks ago (they were smaller then, about 1-2” in diameter). Saw there was a new, big one in the same exact spot this morning.
Should I be concerned?
Is it a fungal problem?
I always thought mushrooms on tree trunks were a bad sign of old/ancient trees dying or in decline or rotting (though this one is a young sapling).
How do I get rid of it for good?
Atm, I only have hydrogen-peroxide and horticultural/mineral-oil.
Will those work, or do I need something else like daconil, copper, etc.?