Worms in an oyster mushroom block. They are actually insect larvae.

What is it that looks like worms we see in the mushroom block? These are larvae and maggots of a wide variety of insects - fungal mosquitoes of the Cecidomyidae family, various flies and midges. Today I will tell you whether oyster mushrooms are wormy, and which worms live in a mushroom block.
0:17 - Can you see worms on mushrooms?
0:43 - larvae in blocks of oyster mushroom
2:20 - These terrible worms are the larvae of some type of fly.
3:10 - How to get rid of midges when growing oyster mushrooms
4:43 - wormy oyster mushroom