Well, I saw a programme which AFAIK was recorded in the new forest. They had some device for feeding red squirrels. It was a platform up a tree which the squirrel had to be on to get the food. It was a trapdoor that would only hold the weight of a red squirrel, which are absolutely beautiful IMO. The tree rat is too heavy and falls through the trapdoor!! Maybe some punji sticks could be put underneath the trapdoor?!!
All joking aside, tree rats aren't native to this country, same as that crayfish that must be destroyed if caught. Just because they are furry shouldn't preclude them from being culled, they are pushing cute squirrel out of its natural enviornment, and once they leave they don't return. I would like to see it done humanely of course, and squirrel burgers to be made available for purchase at the woodlore site!