Emerald Ash Borer Treatment

The emerald ash borer (EAB) has been confirmed in South Dakota and poses a serious threat to every ash tree in the Sioux Falls area. Without treatment, infested ash trees die within 3-5 years. Our certified arborists use trunk-injection treatments proven to be over 95% effective at protecting ash trees, helping you save these valuable shade trees before it's too late.

SIOUX FALLS AND SURROUNDING AREAS

What We Offer

EAB treatment is most effective when started before heavy infestation. Trunk injections protect ash trees for two years per application and are the gold-standard treatment recommended by university extension services across the Midwest. Recommended treatment period - June through August.

  • Arbormactin is applied by a licensed commercial applicator.

A man in a beige shirt, cap, safety glasses, and blue gloves is injecting a liquid into a tree trunk with a syringe connected to tubes and containers labeled 'Tree Injection Insecticide' and 'Emerald Ash Borer Treatment' in a park.

Frequently Asked Questions

  • EAB has been confirmed in South Dakota since 2018 and is spreading. Even if it hasn't reached your specific neighborhood yet, preventive treatment is strongly recommended. Once visible symptoms appear (canopy thinning, D-shaped exit holes, bark splitting), the tree is already heavily infested and may be harder to save.

  • Treatment cost depends on the size of the tree, measured by trunk diameter. Typical trunk-injection treatments range from $150-$500 per tree and last approximately two years. Compared to the $1,000-$3,000+ cost of removing a large dead ash tree, treatment is a smart investment for healthy trees.

  • If the tree is in good overall health and has less than 30-50% canopy loss, treatment is usually worth it. A large, healthy ash tree adds significant property value and shade. Our arborist will inspect your tree, assess the level of infestation, and give you an honest recommendation on whether treatment or removal is the better option.

  • Trunk-injection treatments are most effective when applied in early summer (June-August) when the tree is actively transpiring and will move the product throughout the canopy. We recommend scheduling your assessment early so treatment can happen at the optimal window.

  • Ash trees have compound leaves with 5-9 leaflets arranged opposite each other on the branch. In Sioux Falls, the most common species is green ash. If you're unsure, our arborists can identify your trees during a free property assessment and let you know which ones need protection.

Need Emerald Ash Borer Treatment in the Sioux Falls area?

Get a free, no-obligation estimate from our experienced team. We're here to help with all your tree care needs.