Overview

The emerald ash borer (EAB), an insect native to Asia, arrived in North America in 2002, likely through wooden shipping materials. Responsible for destroying tens of millions of ash trees in 25 states across the country, the borers eat the leaves of ash trees and deposit their eggs beneath the bark. When the larvae hatch, the insects destroy the vascular system of the trees, leading to their eventual death.

With new advancements in chemical treatment and looking at the cost/benefit analyses, we have shifted to a new approach that is resulting in the retention of nearly 40% of our original ash population. After speaking with urban forestry experts and entomologists, it is clear that retaining a population of ash trees for the duration of the infestation is a viable management strategy and a strategy that will work better for our community and our unique urban forest. 

Emerald Ash Borer Preparedness Plan

The Emarld Ash Borer (EAB) has been detected within 15 miles of the City of Clayton and the City is implementing Phase 2 of the plan.

• EAB Preparedness Plan (2015)
• EAB Plan Update (2018)
• EAB Plan Update (2019)
• EAB Plan Update (2022)

Licensed Tree Services

Refer to the Forestry Services section under Public Works for a list of tree service companies that are licensed by the Department of Public Works and are available to address questions and concerns about ash trees located on private property.

Ash Tree Inventory

The map below indicates ash trees located on public property.

• Ash Tree Inventory (2015)
• Ash Tree Inventory (2021)

For more information

• The Missouri Botanical Garden - Emerald Ash Borer
• The Missouri Department of Conservation
• Missouri Department of Agriculture