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Arborist treating a mature tree for disease

Tree Services

Tree Feeding, Disease & Insect Control

Tree feeding & insect control by certified arborists — protect your trees from emerald ash borer, bagworms, fungal disease and soil deficiency in Maryland.

About Our Tree Feeding & Insect Control Services

Healthy trees start below the surface. Many trees in Montgomery County are stressed not by disease itself but by compacted urban soil, low nutrient levels, and pest pressure. Rock Creek Tree uses injection feeding, deep-root fertilization, and targeted insect and disease treatments to protect the trees you want to keep.

Emerald Ash Borer Prevention & Treatment: if you have an ash tree on your property and it’s showing any thinning, dieback, or D-shaped holes in the bark, it is almost certainly being attacked by EAB. We have already removed thousands of EAB-killed ash trees across the region. Preventative injection treatment can save a healthy ash tree for a fraction of the cost of removal.

When Homeowners Call Us For Tree Feeding & Insect Control

  • Ash trees of any kind (preventative or active EAB)
  • Trees with thinning canopy or yellowing leaves
  • Bagworm or webworm infestations on evergreens
  • Boxwood blight, anthracnose, or other fungal disease
  • Mature trees in compacted lawns or near new construction

Our Process

01

Diagnosis

A certified arborist identifies the issue — pest, disease, soil, or stress — before recommending treatment.

02

Targeted treatment

Trunk injection, deep-root fertilization, or foliar spray — whichever is right for the issue and the tree.

03

Follow-up

We track results and adjust on a yearly cycle. Most issues respond to a 2–3 year program.

Why Hire Rock Creek for Tree Feeding & Insect Control

  • Injection treatment — no spray drift, no off-target damage
  • EAB treatment with proven systemic insecticides
  • Honest assessment — we’ll tell you when a tree can’t be saved
  • Lower cost than removal for trees you want to keep

Service Area

We provide tree feeding & insect control services throughout Montgomery County, Maryland and into Northern Virginia — including Arlington, VA, Aspen Hill, MD, Bethesda, MD, Brookeville, MD, Cabin John, MD, Chevy Chase, MD, Columbia, MD, Fulton, MD and more.

Need tree feeding & insect control today?

Call us 24/7 or request a free quote online.