Tom Kalb, NDSU Extension horticulturist (NDSU photo) https://www.ag.ndsu.edu/news/columns/dakota-gardener/dakota-gardener-when-pruning-apple-trees-keep-it-simple/kalb.jpg/view https://www.ag.ndsu.edu/news/columns/dakota-gardener/dakota-gardener-when-pruning-apple-trees-keep-it-simple/kalb.jpg/@@download/image/kalb.jpg Tom Kalb, NDSU Extension horticulturist (NDSU photo) Click to view full-size image… Size: 1.6 MB