Mare's Tail

 

Quick facts

Common name: Horsetail, mare’s tail 
Areas affected: Will grow anywhere, even up through concrete
Main causes: May establish from spores, but usually arrives via rhizomes from neighbouring gardens, 
Timing: Seen in spring and summer; treat when every and where ever you see it.

I had lots of this on my allotment when I started 13 years ago, however there is very little on my plot now.

I just cut it off at ground level when ever and where every I saw it.