I think my tree may be infected (infested) with the emerald ash borer – now what? Can I save my ash tree after it’s infested?
Guarantree – if your ash tree is infected but it’s healthy enough to survive, we can save it & offer a guarantee.
You have several options — each of which depends on a number of factors. We’ll walk you through your specific treatment regimen based on your infestation level.
1. Treat with an Insecticide (*Talk with Darrell and Will about organic treatment options)
Researchers have developed an injectable treatment called Emamectin Benzoate . Once injected, the tree is able to fight back for 2 years or more per treatment.
Capital City Tree Service uses state-of-the-art ArborJet system. We inject the treatment directly into the water-conducting xylem at the base of the trunk where it is carried upward through the tree, minimizing soil contamination.
We treat with Arbor jet insecticide only if the tree is apparently healthy or less than 40% of the crown has died, is discolored or has sparse foliage. Research has shown that trees with more than 40-50% crown dieback do not benefit from treatment.
Treating with an insecticide reduces the population of EAB and prolongs the life of your tree. Treatment requires a long-term commitment. It is not known how long EAB will remain in an area, threatening the health of ash, thus several treatments may be required or treatments may be needed for the rest of the tree’s life. Contact one of our certified arborists for treatment options.
How much does each injection cost? It depends on the diameter of your tree: 18″, for example, runs about $200
How often are injections needed? Every 2 years until the regional infestation is gone.
Guarantree – if your ash tree is infected but it’s healthy enough to survive, we can save it & offer a guarantee. Read more.
2. Remove and Replace
This is an option for ash in all stages of health. Contact a certified arborist to remove trees in your yard and to appropriately process wood to prevent additional spread of EAB. Replace trees with a non-ash species suitable to your site. Here’s a list of good replacement trees.
3. Do Nothing
Observations in states where EAB has been present for several years show that all ash trees are susceptible to infestation and mortality. If you take this option, expect your tree to become infested and die. Be prepared to handle the hazards associated with dead trees such as falling branches which may damage property or endanger life.