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This factsheet describes considerations and products for treating ash trees with insecticides to control Emerald Ash Borer.
This factsheet addresses some of the most frequently asked questions regarding the treatment of ash trees for emerald ash borer (EAB), and the removal and disposal of infested trees. When should I consider treating my ash tree for EAB?
Now that the emerald ash borer (EAB) has arrived in Colorado, learn more about the four ash tree treatment options, including trunk injection, soil drench, bark spray, and ash tree removal and replacement.
How It Is Treated. Report Signs of EAB. If you think you've seen the pest or ash tree damage caused by an EAB infestation, please complete the form below. If you have questions or need additional assistance, call 1-866-322-4512. Ron Weeks, Jr.
In general, consider having large ash trees (those greater than 48 inches in circumference, as measured 41⁄2 feet above ground level) treated by a professional. Check specific pesticide product labels for tree size requirements.
Emerald ash borers could mean the end for your ash tree. Learn the symptoms of infestation and how to get effective emerald ash borer treatment.
Several insecticide products are available to homeowners for control of emerald ash borer (EAB). However, not all ash trees are worth treating with insecticides. Tree location, value, and health, as well as the cost of treatment are all factors to consider.
4 INSECTICIDE OPTIONS FOR PROTECTING ASH TREES FROM EMEfiLD ASH BORER Answers to Frequently Asked Questions What options do I have for treating my ash trees? Several insecticide options are available to protect landscape ash trees threatened by EAB. Products listed in Table 1 have been evaluated by university and government scientists in field ...
Chemical treatment using insecticides containing the active ingredient imidacloprid can be effective at controlling the EAB. Applications are made as soil drenches, soil injections, or stem injections in May or early June.
The most common EAB treatments are soil injections and trunk injections. Both deliver the product right into the tree's tissue, which is then evenly dispersed throughout the canopy. The injections target the larvae tunneling in the tree, which stops the most destructive phase of this insect.