State Parks

2024 Spongy Moth Spray Plans Announced

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By Art Kabelowsky, DNR Outreach and Communications, Fitchburg;
Arthur.Kabelowsky@wisconsin.gov or 608-335-0167

Photo of an airplane spraying insecticide on trees at Devil's Lake State Park in Sauk County.

An airplane sprays insecticide on trees at Devil’s Lake State Park in Sauk County. / Photo Credit: Wisconsin DNR

The Wisconsin Department of Natural Resources (DNR) has finalized aerial spraying plans for its 2024 Spongy Moth Suppression Program, with maps for the six selected treatment areas available online.

The treatment sites contain high-value trees at six state parks or forests in Columbia, Marinette, Sauk and Walworth counties. A total of 928 acres will be treated with an aerial spray of “Foray” bacterial insecticide containing Bacillus thuringiensis var. kurstaki.

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DNR Staff Gets Tree Injection Training

Posted on by akabelowsky
Photo of a tree marked with a ribbon for pesticide/fungicide injection.
Photo of a worker demonstrating a tree injection nozzle.

Cory McCurry, an arborologist with Rainbow Ecoscience, talks with DNR Parks and Forest Health employees while demonstrating the use of a nozzle component of the Q-Connect tree injection system currently in use at state properties. Photo: Wisconsin DNR.

Art Kabelowsky, DNR Forest Health outreach and communications specialist
Arthur.Kabelowsky@wisconsin.gov or 608-335-0167

LAKE GENEVA, Wisconsin — Fifteen employees of the Wisconsin Department of Natural Resources gathered at Big Foot Beach State Park on May 16 to learn more about using injections of systemic pesticides to protect the health of high-value trees at state properties.

Ten Wisconsin State Parks employees and five members of the DNR’s Forest Health team met with representatives of Rainbow Ecoscience and Bartlett Tree Experts to witness a demonstration of best practices for tree injections.

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