Gypsy moth quarantine Illinois

In this post, we talk about the Illinois Gypsy Moth quarantine, the counties affected by it, and the signs and symptoms of a gypsy moth infestation.

Illinois Gypsy Moth QuarantineGypsy Moth Tree Damagae

Four more counties have been placed under quarantine by the Illinois Department of Agriculture to control the spread of the Gypsy Moth, an insect that destroys trees and shrubs. The invasive moths can strip trees bare of their leaves, causing tree death.

The original quarantine began in Lake County in the year 2000. The destructive moths have continued to spread to neighboring counties in Illinois.

The counties added to the quarantine are Kendall County, Kane County, LaSalle County and Will County. These four counties will join Cook, DuPage, Lake, and McHenry counties in the department’s quarantine order.


Illinois Counties Under Gypsy Moth Quarantine

  • Cook County
  • DuPage County
  • Kane County
  • Kendall County
  • Lake County
  • LaSalle County
  • Will County


What Does the Gypsy Moth Quarantine Mean?

All nursery and lumber products will need to be inspected or certified moth-free before they can be moved out of the counties.

Residents in those counties must personally inspect vehicles, tents, outdoor lawn furniture, bicycles and other outdoor items for gypsy moth eggs, live moths and or caterpillars before taking them out of the quarantine zone.

If you are caught illegally removing items from the quarantine area you may be fined up to $500, and the items will be confiscated or destroyed.

Related: Year Round Pest Control


Signs and symptoms

According to the United States Department of Agriculture, “the caterpillars have voracious appetites for more than 300 species of trees and shrubs, posing a danger to North America’s forests.” Watch out for defoliated trees and shrubs as this is most likely the sign on Gypsy Moth caterpillars feeding and destroying plants.

Related: Green T Pest Alert! Gypsy Moths!


Gypsy Moth ControlGypsy Moth Tree Damagae

Gypsy moths like to lay egg clusters that look like fuzzy brown lumps on smooth surfaces. If you find a cluster you shouldplace it soapy water. In Illinois there are two treatments that can be dropped by helicopter, BtK – an organic bacterial spray that targets caterpillars and is harmless to people and pets. Another treatment uses biodegradable plastic flakes laced with pheromones and is used to confuse male moths and disrupt their mating.

Call Green T Pest Control 630-231-9997 | 847-695-7777

Request a free commercial or residential gypsy moth control estimate today!

Additional Resources

Illinois Department of Agriculture – Department of Agriculture Quarantine Announcement – Gypsy Moth Treatment Area MapsWikipediaDaily Southtown – University of Illinois Extension