"Stephen Howard" wrote in message

There's no way on earth you can remove fungi short of annihilating
your garden. Each individual fruiting body chucks out millions of
spores ... and does so within hours of appearing from nowhere.
These microscopic spores are abundant in the air at this time of
year.... if you lay waste to the current flush of fungi you can pretty
much guarantee they'll be back next year... or another species that
favours the conditions in your garden.
The bits that you can see represent a mere fraction of the entire
organism... the mycelium ( think of it as the roots ) can occupy a
huge area of ground beneath the fruiting body ( the 'toadstool' ).
This autumn has been particularly well suited to lawn fungi.
If it's dry next year you may not seem them ( but they'll still be
there, lying in wait for wet and warm weather ).

Point three:

By and large, fungi are harmless. The only really nasty bugger is
Honey Fungus ( in horticultural terms ), the rest are relatively
benign.. though naturally you'd be extremely foolish to eat any that
you couldn't identify for certain.
To all intents and purposes they can be treated as very short lived
annuals.
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Thanks, info appreciated,

Carl