Inoculating fungi on stumps using wheat colonized with mycelium

Hello, in the book "Mycelium Running" it explains that to colonize stumps, plug spawn is used, which is inserted into the edges of the stumps. There's a store where I can get wheat colonized with mycelium. I was wondering if instead of using plug spawn, I could use small pieces of wheat in the stump holes and it would work the same? Or is it necessary to use plug spawn?

Thanks in advance

I believe you would have success with this if you had well inoculated spawn.

If I were to do it, I would drill the holes and then make sure to pack the hole well with spawn. Maybe get a similar diameter stick/rod to avoid gaps and ensure good contact with the wood.

I found the bigger the stump, the longer it takes for mushrooms to appear. The bigger stumps, at least for me, produce longer than the smaller ones as well.

In my experience, using plug spawn on outdoor projects would be a much better choice than grain spawn. The reason is that all kinds of animals LOVE to eat grain spawn, especially rodents. Earthworms, insects and other bugs such as pillbugs like to eat grain spawn, too. Plug spawn also resists disease better. What species are you trying to grow?

At any rate, I would probably shop around a bit more for plug spawn- well worth the effort. Good luck!