Q.Infestation
We were trimming our holly bushes in front of the house (in middle TN), when we noticed an alarming amount (100’s) of these white egg sacs on the bottom of the leaves. They were long and skinny and very much reminded me of cockroach egg sacs, except they were white. Just curious what kind of bug it could be. My husband wants to chop down the whole bushes, not sure if that’s even necessary.

Certified GKH Gardening Expert
This is most likely aphids or mealy bugs. I would treat the plant with neem oil. It is effective against both of these bugs. Here is more information that may help you:
https://www.gardeningknowhow.com/plant-problems/pests/pesticides/neem-oil-uses.htm
https://www.gardeningknowhow.com/plant-problems/pests/mealybugs-white-residue-on-plants-leaves.htm
https://www.gardeningknowhow.com/plant-problems/pests/homemade-aphid-control-a-natural-way-to-kill-aphids.htm