Hi Gents,
I'll add my opinion here- we have to be careful that we dont get crossed wires. The original post was written so as to imply that the exhaust fumes would be used to kill the moles i.e poison them by CO, indeed if you started putting exhaust fumes down mole runs they aint going to bolt. Exhaust fumes, used in this instance, are being used as a posion and thus have to be registered as so. Carbon monoxide is not registered for the killing of moles see here for some advice on legal methods http://www.defra.gov.uk/rds/publications/t...ical/tan_03.pdf
The difference between this an