You live in CT, hmmm.... there are plants that repel certain pest animals... but the ones I know about are for the tropical or sub-tropical climates... That does not mean that others do not exist for your climate too, however.
There may be a plant/bush maybe would have roots that grow very deeply, and planted side by side could create a barrier around the garden or plot of land that would make it inhospitable, or that would stop the borrowing animal in its tracks? Some plant roots emit a natural substance or odor that repels the critters.
Just like a human will be less likely to attempt to climb a fence that has a thorny bush covering it, there have got to be ways to disturb the environment for them, while enriching it for you. (and ultimately better for them too because no threat of being poisoned which effects the food web). I routinely plant marigolds in the garden to avoid a host of pests for my vegetables, as another example.
The abundance of nature provides for us. Be open to that possibility even as you might try other approaches first, and when you create that question for Her, she will provide an answer - just keep listening in, ever receptive to guidance, and believe in that there is a natural solution available. Nature cooperates when we look for solutions that do no harm for the whole. Keep us posted.
