My holly bush looked ok but under every leaf was an infestation that looked like white maggots. What is it? I cut all branches off. Should I dig up root as well?
Certified GKH Gardening Expert
It is possible that it is scale or mealybugs. I like to treat both with neem oil. It is very effective and safe. These articles will help: https://www.gardeningknowhow.com/problems/pests/neem-oil-uses.htm, https://www.gardeningknowhow.com/plant-problems/pests/scale-bug-how-to-control-plant-scale.htm, https://www.gardeningknowhow.com/plant-problems/pests/mealybugs-white-residue-on-plants-leaves.htm