Poison the bu**ers. You poinsoning one colony will not affect the overall population very much. Do you have Kids......think about Leptspirosis as well.
We had rats - It's nowt to be ashamed of - the council Pest Controller sorted them and touch wood we have not had a problem since.
Cutting off the food supply only works if this is overt, i.e. if you chuck out the remnants of sunday dinner for the "birds" and that sort of thing. Most rats live in sewers and near water courses. when there are floods or drouts they are forced out of their homes to forage elsewhere. once they have colonised the only realistic way to treat is to kill the blighters.
We had rats - It's nowt to be ashamed of - the council Pest Controller sorted them and touch wood we have not had a problem since.
Cutting off the food supply only works if this is overt, i.e. if you chuck out the remnants of sunday dinner for the "birds" and that sort of thing. Most rats live in sewers and near water courses. when there are floods or drouts they are forced out of their homes to forage elsewhere. once they have colonised the only realistic way to treat is to kill the blighters.