When you are not injecting for cambial feeding borers, you can inject with the Wedgle at a reasonable height when the first lateral branch is five to ten feet above the ground. Normally, you would inject within 12 inches of the ground. For example, injecting for leaf disease such as Diplodia Tip Blight using our Shepherd Fungicide is made easier. Or have a problem with a tree nutrient deficiency? Use our MicroNutrients to solve those problems and inject at a practical height. For more information on our direct-inject chemicals, click here.