Nick St. Sauveur, district manager of Cortese Tree Experts, a Davey company, in Knoxville, TN, discusses the practice of air spading and how it can help improve soil quality and health. In this episode we cover: What is air spading? (:41)Can a tree of any size be air spaded? (1:12)Air spading and volcano mulching (2:40)What does an air spade look like? (3:14)How much soil comes out of air spading a big tree affected by soil compaction? (4:02)Where do you look at a tree for compaction st...