I had 2 large bradford pears taken down and the stumps ground when I bought my property almost 7 years ago, and I still occasionally get these in the area the stumps were. However this year they have been much less than prior years...so I'm hoping the remnants of the roots are about gone. They are harmless as far as I know, when I see one come up I tear it off and throw it away. Like you mentioned....they do get very hard if you leave them and let them dry out, then they really are a nuisance when mowing.

I doubt there's anything you can do...other than wait them out.

thanks for the replies. I guess I'll just pop them off as they pop up.

That’s a neat fungus. Looks like a pancake

it is normal and a free show of ma nature..

fungii.. shrooms.. are one of ma natures bio-degraders... and they will be doing there job.. until there is no further wood to rot... i might guess 3 to 5 years ...

personally... i enjoy the show.. as its a garden i dont really have to tend.. lol ..

i have some vague recollection that apply some extra nitro MIGHT help ... it does help rot piles of raw mulch ... but im sure you could burn your grass or sod rather easily. before you impacted the shrooms..

can any one confirm or deny that??

btw.. they are also cyclical during the growing season ... peaking in the dank damp mornings of aug and fall... and the cooler early version in april and may .. in my area anyway.. it would be regional.. depending on where you are...

its not your grinders fault.. except that he should have told you it would probably happen..

i usually suggest that you pay the grinder to remove all grindings.. because of all the wood mixed in toe soil... had you dont this.. you would have had significantly less... he would have brought in fresh soil to fill the hole...

ken

the tree was removed well before we bought the house, and I suspect the tree was rather large because when the sidewalk was poured - they poured around the tree, at a pretty big radius I might ad.

Do not remove the 'shrooms! ;-)

Much is not understood about the association between fungi and bacteria's when it comes to decomposing wood. They appear to work together in the process.

But mushrooms (fungi) have always been known to be the primary decomposer of wood and generally is the fasted way to get rid of the dead stump material, naturally.

There is some speculation that added nitrogen aids fungi in speeding up the process but there have been few long-term conclusive tests to verify this.

It may take several years, but mushrooms are the healthy, natural and showy way to accomplish this.

Otherwise, you could get some heavy equipment and dig out the entire area and replace with clean soil. But this would be costly and if this is a city owned boulevard, there may be legal implications and you most likely would be liable for any mishaps that occur during the process.

bill