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2023 Indiana Spongy Moth Treatment Program

Proposed Treatment Areas for 2023

Caterpillar Treatment Area

One or two treatments per area – typically late April- early May

CountyArea Proposed Product
LaPorte Kingsbury Btk 23 Foray 76B (Btk)

Mating Disruption Area

One treatment per area – typically in late June

CountyAreaProposed Product
Starke/Marshall Plymouth MD 23 SPLAT GM-Organic
Kosciusko/Marshall Etna Green MD 23 SPLAT GM-Organic
Kosciusko/Fulton Beaver Dam MD 23 SPLAT GM-Organic

Maps of proposed treatment areas for 2023

Interactive map

Select the image below to open the map in a new browser window. Enter an address in the search bar on the top left of the map to find a location's proximity to the proposed treatment areas

Indiana Spongy Moth Treatment Area Proposed Areas map

Public Meetings

Representatives from the Division of Entomology & Plant Pathology will be presenting information about spongy moth and answering questions at each of our six virtual meetings.

Meeting Date Meeting Times Meeting Link
Tuesday, January 24, 2023

Noon–1 p.m. ET (11 a.m.–noon CT)

7–8 p.m. ET (6–7 p.m. CT)

Join us at
Meeting ID: 886 8673 1356
Or join by phone at
312-626-6799 (fees may apply)
Thursday, January 26, 2023

Noon–1 p.m. ET (11 a.m.–noon CT)

7–8 p.m. ET (6–7 p.m. CT)

Monday, January 30, 2023

Noon–1 p.m. ET (11–noon CT)

7–8 p.m. ET (6–7 p.m. CT)

If unable to attend a meeting, view the information below:


Questions about spongy moth and the proposed treatments may be directed to the Division of Entomology & Plant Pathology at:
Phone: 317-232-4120
Toll-Free Number: 866-NO-EXOTIC (866-663-9684)

Public comment

The public can send comments on the proposed treatments in writing to the address below. The comment period ends Friday, March 3, 2023, at 4:30 p.m. ET.
Mail to:

Spongy Moth 2023
Indiana DNR, Division of Entomology & Plant Pathology
402 W. Washington St., W290
Indianapolis, IN 46204

Phone: 317-232-4120
Toll Free Number: 866-NO-EXOTIC (866-663-9684)

Spongy Moth treatment product labels & SDS sheets

Mating disruption

Larval treatments

2023 Indiana Environmental Assessment Documents

Cooperative Slow the Spread Spongy Moth Project

Upcoming Events

More Events

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