The Fall Lifecycle of the Emerald Ash Borer
Trevor Soltys & Paul Kasper
ISAโCertified Arborists Serving Winnipeg & Surrounding Communities
https://treesolve.ca
Emerald Ash Borer (EAB) continues to threaten ash trees across Winnipeg and surrounding communities. While most homeowners think of EAB as a summer problem, fall is one of the most active and destructive periods in the insect’s lifecycle. Understanding what happens inside your ash tree during autumn helps you plan timely, effective protection—especially spring trunk injections.
๐ Larvae Dig Deeper in Fall — The Hidden Damage
As temperatures cool, EAB larvae tunnel deeper into the inner bark and cambium layer. This is where the real harm occurs: larvae feed aggressively, cutting off the tree’s ability to move water and nutrients. By late fall, many ash trees already have significant internal damage even if external symptoms are subtle.
๐ Why Fall Activity Matters for Spring Treatment Planning
Because larvae overwinter inside the tree, spring trunk injections must be timed before they resume feeding. Winnipeg’s climate means injections are most effective when applied early—before adult emergence and renewed larval activity. Fall is the ideal time to assess ash trees and schedule spring protection.
๐ Signs of EAB You Can Spot in Autumn
Even though larvae are hidden, homeowners can still identify warning signs:
- Thinning canopy or premature leaf drop
- Woodpecker activity (they target larvae under the bark)
- Cracking bark or serpentine galleries
- D-shaped exit holes from earlier generations
If you notice any of these symptoms, your ash tree may already be compromised.
๐ฑ Book Your Spring Trunk Injection Now
TreeSolve’s ISAโCertified Arborists provide targeted trunk injections that protect ash trees for up to two years. Because spring is the busiest season, fall is the best time to secure your spot and ensure your ash tree receives timely treatment.
๐ก๏ธ Protect Your Ash Trees Before It’s Too Late
EAB spreads quickly across neighbourhoods like Charleswood, River Heights, Tuxedo, Linden Woods, Transcona, and East/West/North Kildonan. Early action is the only proven way to preserve mature ash trees.
๐ Contact us: https://www.treesolve.ca/contact-us
๐ Tree Removal: https://www.treesolve.ca/services/tree-removal
๐ Stump Grinding: https://www.treesolve.ca/services/stump-grinding
๐ Pruning/Trimming: https://www.treesolve.ca/services/pruning
๐ Tree Cabling: https://www.treesolve.ca/services/tree-cabling
๐ EAB Injections: https://www.treesolve.ca/services/emerald-ash-borer-injections
“TreeSolve Inc. provides ISA-Certified arborist services, large tree removals, trimming, and automated Emerald Ash Borer (EAB) treatments across Winnipeg,
MB
in neighborhoods
including the suburbs of Charleswood, River Heights, Tuxedo, Whyte Ridge, Linden Woods, Fort Richmond, Southdale, Island Lakes, Transcona, North Kildonan, West Kildonan, East Kildonan, etc., and surrounding communities: East St. Paul, West St. Paul, Headingley, Oak Bluff, and La Salle.
We are fully insured and WCB compliant.”
