On 15/03/2015 07:26, Fran Farmer wrote:
so does fumigating their burrows by shoving a hose onto the end of an
exhaust pipe of a leaded petrol car and shoving the end down the burrow
and then closing over all holes with dirt and leaving the car running
for a while. These days that means you have to find an old car where
lead is added to modern fuel

It's not the lead, it's the carbon monoxide that does for them. Anything
without a catalytic converter will do - which includes old diesels as
well as petrol. A lawnmowers would probably do - although you'd have to
run a lawnmower an awfully long time to get much exhaust.

Andy