I purchased and planted 4 Apple trees from Home Depot about 3 weeks ago. 3 are flowering and doing well and one, the Fuji, is not. At the time of transplanting it was just starting to get leaves, very small and still curled. Almost immediately these leaves turned yellow and then brown and crispy. I assumed it was a bit of shock and kept the tree watered with a 5 gallon drip bucket a couple times a week. It has since produced a few small leaves or maybe buds but they brown before they get the size of a tic tac. Today I noticed what almost look like very very tiny wine corks in the trunk of the tree. They are about the diameter of mechanical pencil lead and the longest one was about a quarter inch. They fall off at the slightest touch revealing a tiny hole, about 8 holes in total. Are these holes the cause of the trouble? Any solutions?