Arizona pack rat problems?

Snomas wrote:
We are moving to Arizona area and will be storing our Dutch Star outdoors (in Phoenix area sometimes and in Cottonwood area at times) and I'm wondering if there are any mice, pack rats, or other insects problems that can damage wiring, etc in storage yards and what you do to prevent the problems.

I once heard this guy say that peanut butter and golden malrin does the trick. He also told me to be careful handling the golden malrin. He said it will kill other critters too so placement is emphasized.