Using Science to Enrich Beautiful Landscapes
Dutch Elm Disease
We are experts at performing tree injections especially to preserve Elm trees from Dutch Elm Disease. We do not drill into trees anymore. 15 Years ago we were and experienced negative impacts on the trunk which could not recover from the wounding effects associated with drilling. Contender’s Certified Arborists’ have been thoroughly trained to identify Dutch Elm Disease and treatment methods to prevent infection before any symptoms have occurred.
Dutch Elm Disease control injections can be administered as either one or two year protection doses without having to drill. Those who offer drilling methods suggest 3 years control but any Elms that crest their towering modes will break through that cycle no matter what requiring extra control.
Anyone who sells you on the theory that a systemic insecticide will help reduce the risk of Dutch Elm Disease because it offers protection against insects which spread it are under estimating the threat should your tree suffer any storm damage. Sap beetles are attracted to fresh wounds and will not be diverted from an insecticide injection therefore these sap beetles which inadvertently transmit the Dutch Elm fungi from an infected Elm to another will still pose the greatest risk.
Posted on: August 4, 2015
What you’ll see…is wilting leaves and dieback of branches, often one at a time or on one side of the tree. This can occur over a number of years, with remiss...