Because drilling hurts the tree! Let’s compare it to a human. The no-drill method is similar to getting a small cut that mends quickly versus drilling which is comparable to a cut that requires stitches. Some companies compare the trunk injections using drilling to a hospital IV or blood stream injection. But these methods can be prone to infections and need time to heal versus non-drilling which is more like a simple vaccine or shot that heals fast. Drilling of large holes on a yearly or semi-yearly basis have proven to be harmful to the tree. Our injection system protects the tree’s health and prevents long-term wounding. For more information, click here.