In article o.uk, Dave
Liquorice writes
Yep, the blast of heat ruptures the plants cells and they wither.


Good for going round ponds etc. as there's no chemicals to get into the
pond and fabulous fun on dandelion clocks etc. !Great for shingle though
didn't attempt the tarmac on the driveway.
I did once buy one of those silly little canister burners but they are
useless and wouldn't work after half a can had been used.
Sheen gun makes a lovely noise and you start to look round for other
things to blast

Probably good for starting a bonfire also!
--
Janet Tweedy
Dalmatian Telegraph
http://www.lancedal.demon.co.uk