Homeowners and tree care professionals are concerned that tree trunks will show signs of trunk injections. Here is a photo of sycamores that have been treated for anthracnose for more than five years using the ArborSystems Wedgle Direct-Inject Tree Injection Systems. They were injected every year with ArborSystems Shepherd fungicide. The Wedgle is the only trunk injection method that does not require drilling, preventing drilling damage, long-term wounding and wasted tree energy. So multiple or annual injections can be made without injuring the tree. For more information on the Wedgle, click here. For Shepherd Fungicide, click here.