Scale Insect Treatment in Madison, WI 

Scale insects are small sap-sucking pests that attach themselves to branches, leaves, and stems of trees and shrubs.

Because they often resemble bumps or small shells on plant surfaces, infestations frequently go unnoticed until significant damage has already occurred.

At Keyman Lawn, Tree & Pest, we use targeted treatments designed to eliminate scale insects and protect plant health.

Scale Insect Treatment in Madison, WI

What Are Scale Insects?

Scale insects feed by piercing plant tissue and extracting sap from the tree.

There are two primary types:

  • Armored scale
  • Soft scale

 

Both types weaken trees by draining nutrients and reducing the plant’s ability to grow properly.

Large infestations can cause significant plant stress.

Signs of Scale Infestation

Common signs include:

  • Small shell-like bumps on branches
  • Sticky residue (honeydew) on leaves or surfaces below
  • Black sooty mold developing on leaves
  • Yellowing foliage
  • Branch dieback

 

Because scale insects remain attached to plant tissue, infestations can build quickly without early detection.

Treatment Options We Use

Depending on infestation severity, treatment options may include:

  • Horticultural oil applications
  • Foliar insecticide treatments
  • Targeted trunk sprays

 

Horticultural oil is often used to suffocate overwintering scale insects before populations explode in spring.

Early intervention prevents long-term damage.

FAQs About Scale Insects

Are scale insects dangerous to trees?
Large infestations can weaken trees significantly over time.
Yes. Crawlers can move between nearby plants.
Proper treatment greatly reduces populations and prevents severe infestations.
Early spring treatments are often most effective.

Scale infestations often go unnoticed until damage is advanced.