Any idea what this is?

Anyone know what this is?

Yes it looks like a picture .

More information just might help .

A piece of wood with fungus on it.

If you want anything approaching a useful response you need to put a little more detail and effort into asking the question.

Moisture damage with fungus . see any insect activity?

BUGS! Did someone say bugs? :mrgreen:
Looks like white rot. Also not good for onions/garlic.