No fire - no flares - no cigarettes in the vicinity.

It will kill all grass in the area - but use one liter of high octain (better fumes) gasoline poured down the main burrow.

Gasoline fumes are heavier than air - the critter - over 30 minutes will be afixiated. Lease the burrow open to allow ventilation through ALL chambers.

Sincerely,
Gargoyle