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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
Resources
Publications

Gypsy Moth Management for Homeowners

Introduction



Adult gypsy moth male and female.
(USDA APHIS PPQ)

Once gypsy moths have established in an area, it is impossible to completly eradicate them. Instead, homeowners should focus on keeping their vulnerable trees healthy so they will survive infestations and on keeping gypsy moth populations at management levels.

If you live in an area affected by gypsy moths, keep the following points in mind to boost your morale during the ongoing battle:
  • Gypsy moths do not kill trees in one season. It takes 2-3 consecutive years of over 50% defoliation to kill a healthy tree.
  • Healthy trees can withstand up to 30% defoliation for several years in a row with few ill effects.
  • There are many measures that homeowners can undertake both before and after the arrival of the gypsy moth to lessen its impact.
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