I have a long-standing, ever nagging, "red squirrel" (rat with a furry tail) rodent problem that is eating my rental home (and my patience dealing with them) for quite awhile. These red squirrels are smaller and "wilder" than the average city squirrel which in our state is are the large brown ones.
The house has been ravaged by these red squirrels eating under the eves and fascia boards going around the roof of the house. Around the chimney is a great spot to chew through too. I've found a fairly good way to "fend off and seal" these holes by using a old heavy duty pop or tin can, cutting it out to fit the overlap of the hole, and use of a lot of heavy duty construction cement (liquid nails - super duty), sealing it shut permanently (seems to work). By the way, once they're in, the start climbing down the inside walls, it's creepy, and it is a very big issue with the tenant or course.
In a week to 3 months there's a new hole the size of a silver dollar about 2 feet from the last one that was just sealed.
The house, of course, sits underneath a towering 40' walnut tree. I cannot remove the tree, shoot a bb gun at the rodents, or do the "have a heart trap deal." Trapping and releasing requires a large amount of time managing the never-ending trap and release cycle.
What I would like to use is an "industrial strength" type of squirrel/rodent killer. Can I put D-CON up in the around the roof of the house or do they make a red squirrel pest control item I can purchase that will ERADICATE these little son of a guns?
I would like to know what a "pro" pest controller would use in a case like this and appreciate all advice and insights in how to eradicate these rodents from my home.