For those of you who have geese free ranging eating mostly grass how do you worm them? I used Flubenvet last time accidently adding the amount for two kilograms instead of two pounds (about double the dose). I had a panic when I realised but there was no ill effect which could be due to them eating grass in addition to the pellets. Is there any other way to worm them than Flubenvet? I don't want to give them anything that would prevent us eating the odd one and when I mentioned Levamisole to the vet he said using this is not possible if we want to eat one.
Helen