Looking for some advice, What's they best way of getting rats to bolt from under a hedge or around an immovable object tree or old brick pile etc? Digging in my opinion is always best but under a hedge and around trees its near impossible. Smokers seem to be hit and miss and I'm not the greatest fan but I have noticed that the chainsaw/strimmer types always work best and this might be due to the vibrations given off. So would a petrol wacker plate work? Has anyone tried it? cheers.