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Identification & Biology
Trees Gypsy Moths Like
How Gypsy Moths Harm Trees
Where Gypsy Moths Are
Gypsy Moth Management
Slow The Spread (USFS and Indiana DNR)
For Homeowners
Impact on Homeowners
Harm to Trees
How Gypsy Moths Move
Your Tree’s Health
Clean Up Your Yard
Destroy Egg Masses
Control of Caterpillars
Insecticides for Caterpillars
Control of Pupae
Control of Adults
Gypsy Moth Activity Calendar
For Professionals
Quarantine Information
History of Gypsy Moths
Asian vs. European Gypsy Moth

Gypsy Moth Management for Homeowners

Destroy Egg Masses

Gypsy Moth Egg Masses
Removing (and destroying) egg masses is an easy, inexpensive way to reduce gypsy moth populations.  Egg masses are present from mid-summer through spring in Indiana, nearly nine months, so there is plenty of time to find and destroy them before they hatch. Each egg mass destroyed in the fall and winter eliminates 400 to 500 caterpillars that would hatch out in the spring.

Finding Egg Masses
Gypsy moths hide their egg masses in dark, protected areas.  They are often on tree trunks and branches, under window sills, in doorways, underneath outdoor furniture and tables, on brick or rock walls, under gutters – just about anywhere.

Use a paint scraper or a knife to lift
off egg mass and dispose of it.

Removing and Destroying Egg Masses
To remove egg masses, slide the blade of a knife or paint scraper under the egg mass, lift the mass off, and dispose of it.  Egg masses should be destroyed by soaking them in a bucket of warm, soapy water overnight.  Leaving them on the ground after removal does not destroy the eggs which will then hatch in the spring.

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