I have been getting questions on armyworms and consulting with other entomologists, they have been as well. So, instead of me recreating the wheel, I am going to link you to a publication written by Dr. Allen Knutson.
Also, if you want to learn how to prepare your home to keep unwanted guest- in this case insects, not relatives- from entering your house, check out this month’s All Bugs Good and Bad webinar provided by Janet Hurley.