Spongy Moth Factsheets

*A new common name for Lymantria dispar, spongy moth, replaced the prior name of this insect, gypsy moth, in 2022. Thank you for your patience and understanding as we transition through the name change process.​ For more information, visit the Entomological Society of America website.​​​

Spongy Moth* (formerly known as gypsy moth) general information

Aerial spray applications

Spray operations

Slow the Spread program

Bacillus thuringiensis kurstaki

Butterflies and Btk


Mating disruptors

Regulations for mills, loggers and truckers


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