Tree Fertilization & Disease Treatment in Columbus, OH – Keep Your Trees Thriving Year-Round

Just like Ohio lawns need mowing and gardens need weeding, trees need a little TLC too. Whether it’s reviving a droopy sugar maple or treating pests gnawing at your American beech, Cox Tree Service provides expert fertilization and treatment services that help your trees stay healthy, strong, and beautiful. With over 70 years serving the Columbus region, we know what local trees need — and when they need it.

Contact Our Local Tree Experts

Common Signs Your Tree Might Need Help

Trees often show signs of stress long before they become dangerous. If you’re seeing any of these issues in your yard, it may be time to call in the pros:

Yellowing or Sparse Leaves

  • Could indicate a nutrient deficiency or compacted soil
  • Especially common in high-clay or high-traffic areas around Columbus

Unusual Spots, Mold, or Mildew

  • Fungal issues are common in humid Ohio summers.
  • Can spread quickly if untreated

Slow or Stunted Growth

  • May be due to depleted soil or root system problems
  • Fertilization can give your tree the boost it needs.

Insect Damage or Pest Infestation

  • Boring insects, aphids, and mites target stressed trees.
  • Early treatment can save the tree and stop the spread.

Deep Root Fertilization That Gets to the Source

We don’t sprinkle a little something on the surface and call it done. Our deep-root fertilization method gets nutrients directly to where your tree absorbs them — the root zone. This method encourages


  • Stronger growth
  • Better resistance to disease and weather
  • Improved overall appearance and canopy fullness



From American sycamores to white oaks, each treatment is tailored to the specific species and soil conditions on your property.

Targeted Tree Disease & Pest Treatments

If your trees are showing signs of disease, we’ll diagnose the issue and apply safe, effective treatments to stop the spread. We treat common regional threats like


  • Anthracnose (especially in sycamores)
  • Leaf spot and mildew
  • Scale insects, borers, and mites
  • Root rot and bacterial infections


We use environmentally responsible products and methods — always keeping safety top of mind for your family, pets, and local wildlife.

We Treat Your Trees Like the Assets They Are

Healthy trees increase property value, offer shade in Ohio summers, and create a more enjoyable outdoor space. That’s why our treatments are never one-size-fits-all — we take the time to understand your property, soil, and goals before starting any treatment.


Schedule Tree Fertilization & Treatment in Columbus, OH Today

Your trees do a lot for your property — it’s time to return the favor. Whether you’ve got one struggling tree or an entire landscape that could use some care, Cox Tree Service is ready to help it flourish.

Call now or fill out our quick form to schedule a consultation — your trees (and future self) will thank you.