It’s just another reason when you use ArborSystems products that you will appreciate us. Our chemicals do not have dye in them – no blue or green or any color for that matter. Tree care professionals tell us that it is important for the simple fact that it is non-staining. And another big incentive is that you don’t drill to inject our chemicals when you use the Wedgle Direct Injection Tree Treatment System. Trunk injections are very effective but drilling of large holes on a yearly or semi-yearly basis have been proven harmful to the tree. For more information on our chemicals, click here.