Protect Your Trees: How to Identify and Treat Common Tree Pests in Kansas City
Trees are essential to Kansas City’s landscape, providing shade, beauty, and environmental benefits. But just like any living thing, they can fall victim to pests. Insects like Emerald Ash Borers, aphids, bagworms, and scale insects can weaken and even kill trees if left untreated.
If you notice wilting leaves, sticky sap, or unusual holes in your tree bark, your tree may have a pest problem. Knowing how to identify, prevent, and treat tree pests can help protect your trees before it’s too late. At Cartwright Tree Care, we specialize in diagnosing and treating pest infestations in Kansas City, Overland Park, Olathe, Lee’s Summit, and surrounding areas.
Here’s what you need to know about the most common tree pests in Kansas City and how to stop them from damaging your landscape.
1. Emerald Ash Borer (EAB) – The Silent Tree Killer
What to Look For:
🐞 Small, metallic green beetles about ½ inch long
🌿 Thinning leaves and dying branches at the top of the tree
🪵 D-shaped exit holes in the bark
🪠 S-shaped tunnels under the bark
Why It’s a Problem:
The Emerald Ash Borer (EAB) is one of the most destructive tree pests in Kansas City, targeting ash trees and killing them within 3-5 years. The larvae tunnel beneath the bark, cutting off water and nutrients, which slowly starves the tree.
How to Treat It:
✔️ If caught early, insecticide injections can help protect your ash trees.
✔️ Professional trunk injections provide long-term protection.
✔️ If the infestation is severe, tree removal may be necessary to prevent the spread.
👉 Don't wait! If you have ash trees, schedule a free tree inspection today.
2. Bagworms – The Hidden Leaf Destroyers
What to Look For:
🕸 Small, cone-shaped "bags" hanging from branches
🌲 Brown, dried-out leaves on evergreens
🐛 Caterpillars feeding on leaves
Why It’s a Problem:
Bagworms are most commonly found on evergreens, like junipers, cedars, and spruces. They strip foliage from trees, weakening them over time and making them more vulnerable to disease.
How to Treat It:
✔️ Hand-pick and remove the bags in late fall or early spring before larvae hatch.
✔️ Apply Bt (Bacillus thuringiensis), an organic treatment that targets caterpillars.
✔️ Use systemic insecticides for severe infestations.
3. Aphids – The Sticky Sap Suckers
What to Look For:
🐜 Tiny, soft-bodied insects (green, black, or brown) clustering on leaves
🍂 Yellowing or curling leaves
💧 Sticky, shiny residue (honeydew) on leaves or cars parked beneath trees
Why It’s a Problem:
Aphids suck the sap out of leaves, weakening trees and attracting sooty mold, which makes foliage appear dirty and black.
How to Treat It:
✔️ Spray trees with water to knock off aphids.
✔️ Introduce ladybugs, a natural predator.
✔️ Use neem oil or insecticidal soap for persistent infestations.
4. Scale Insects – The Tree Vampires
What to Look For:
🔍 Small, immobile bumps on tree bark or leaves
💧 Sticky honeydew residue on the tree or ground
🌿 Yellowing leaves and branch dieback
Why It’s a Problem:
Scale insects suck nutrients from trees and can quickly weaken them, leading to premature leaf drop and branch dieback. They commonly attack maples, oaks, and fruit trees in Kansas City.
How to Treat It:
✔️ Apply horticultural oil during the dormant season.
✔️ Introduce beneficial insects, such as ladybugs and lacewings.
✔️ Use systemic insecticides if infestations are severe.
5. Japanese Beetles – The Leaf Skeletonizers
What to Look For:
🌿 Leaves with a lace-like appearance (skeletonized leaves)
🪲 Metallic green beetles with bronze wings feeding on leaves
💧 Groups of beetles clustering on trees
Why It’s a Problem:
Japanese beetles devour leaves and flowers, weakening trees and making them more vulnerable to disease. They attack a wide range of trees, including elms, maples, and fruit trees.
How to Treat It:
✔️ Hand-pick beetles early in the morning and drop them into soapy water.
✔️ Apply Neem oil or insecticidal soap for minor infestations.
✔️ For larger outbreaks, use targeted insecticides approved for tree safety.
How to Prevent Tree Pest Infestations
🐞 Keep Trees Healthy: Strong trees are more resistant to pests. Regular fertilization, watering, and pruning keep them in peak condition.
🌳 Schedule Annual Tree Inspections: A professional tree risk assessment can catch early signs of infestation before they become a bigger problem.
🛑 Avoid Overuse of Chemicals: Some pesticides harm beneficial insects, so use organic methods when possible.
🚛 Dispose of Infected Trees Properly: If a tree is heavily infested, removing it can prevent pests from spreading to healthy trees.
When to Call a Professional Arborist
While some minor pest problems can be handled at home, severe infestations require professional treatment. At Cartwright Tree Care, we offer:
✔️ Tree Pest Diagnosis & Treatment
✔️ Emerald Ash Borer Prevention & Treatment
✔️ Bagworm, Aphid, and Scale Management
✔️ Professional Tree Risk Assessments
If you suspect a tree pest problem in your yard, don’t wait until it’s too late!
📞 Call us today at 816-965-6758 for a FREE tree inspection in Kansas City, Overland Park, Olathe, Lee’s Summit, and surrounding areas.
Protect Your Trees Before Pests Take Over!
