What do they smell like? Fungussy? Pooey? What are they like inside if you cut one open?

They didn't have any smell outside though. I was checking to see if it is animal feces. It is quite hard to break. Does have fungi/ pungent smell inside. This is what it looks like inside.

You've found the rare and elusive Brown Truffle. I'll give you $500 for the lot.

J/K but it probably is a fungus.

^^ That's a good guess but that is typically firmly attached to the plant - roots or stems. I have never seen them just lying loose on the soil surface.

^^Yes, I wondered about that but wasn’t sure how to interpret “...in the blueberry plant pot soil...”

tj

Probably seems to be the crown gall.

Long story short, the pot fell down and soil was scattered, maybe due to shock these might have fallen off the roots or the bark. And then after putting back the soil found these on top.

I think it's time to inspect the roots thoroughly then. I wasn't even aware this was there in the soil.

Would you know of reasons and treatment to avoid ? I live in Sydney, Australia.

Thanks

Read the link tsugajunkie provided. That provides several treatment methods although I'd go with the first....."Discard any diseased plants."

Yep fair enough. Thanks.

Haven't seen any infected plants so far, infact there is lush growth with fruits emerging as it is spring here. Probably will have to replace soil.