Lady Beetles (Ladybug) in NJ, NYC, and Eastern PA

image of a lady beetle

Ladybug Control in New Jersey, New York City, Philadelphia, Connecticut, and Delaware


What Do Ladybugs Look Like?
Size: About a quarter of an inch in size.

Color: Lady beetles can range from orange to red in color with black spots on the wings and an m-shaped black marking near the head.

Characteristics: Lady beetles are generally considered a beneficial pest, because they feed on nuisance agricultural pests. However, their growing numbers have made them a nuisance pest in some areas.

Call for service: (877) 250-3857


  • Name: Also Known As “Lady Beetles”
  • Origin: Introduced in the late 1970s by the Department of Agriculture as a form of biological control for aphids, lady beetles are commonly known as lady bugs (technically a misnomer).
  • Range: Their numbers are increasing every year in the Northeast, and it’s not uncommon to find them covering the South or Southwestern side of a building in autumn. They are looking for a place to overwinter and will settle for anywhere from your home to a garage or shed.
  • Problems: They don’t cause much in the way of damage aside from rare, mild allergies or unpleasant odor, but when they appear they can appear in very large numbers.


What Do Ladybugs Eat?
Lady beetles feed on aphids and other agricultural pests.


In the spring, lady beetles emerge from overwintering sites (such as your home) to feed on aphids and reproduce. When outdoors, they tend to live amid agricultural and ornamental crops.

Life Cycle
Eggs are laid beneath leaves in clusters. Lady beetles can live from 3-5 years and seek a place to shelter during colder, winter months.


  • Odor: Lady beetles can emit an unpleasant odor when disturbed which is detectable by humans
  • Stains: Look for yellowish stains on windows and walls.
  • Lights: Lady beetles may be attracted to surfaces that are illuminated.
  • Hiding: Attics and wall cavities are prime lady beetle overwintering sites.

Seeking the Source of Lady Bug Infestations

First Sighting
During the fall, lady bugs (also known as lady beetles) tend to make an appearance.

Here’s the bad news: if you’re seeing lady bugs start to appear at your business, they have probably already made their way inside, and they can congregate into the hundreds and thousands at large commercial properties.

Lady bugs typically enter through the top of a building seeking winter shelter.

“Like many other pests, lady bugs seek shelter before winter,” explains Marc Buck, Western’s Randolph, NJ Pest Control Branch Manager. “Because of climate control they can become active prematurely, and some property owners get inundated throughout the fall.”

Over the course of the winter season, temperatures are cool. However, on occasional warm days the lady bugs will emerge – sometimes in large numbers. Buck notes that this can be an issue in large professional offices. Left untreated, the pests can occasionally cause issues with computer equipment or create challenges in pharmaceutical labs.

A common myth is that lady bugs enter through windows. In fact, they tend to enter at the highest points of a structure. “They look for a cavity or a void and then cluster together for the winter,” Buck says.

Ladybug Removal
As part of its commitment to IPM – Integrated Pest Management – Western focuses on the structural issues in commercial buildings that can provide easy entry for pests such as lady bugs.

By addressing the causes, not just the lady bugs, Western helps commercial clients find pest control solutions that work.

Learn more about Western’s comprehensive Home Pest Control Plans.

Call for service: (877) 250-3857

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