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Gypsy Moth Treatments in LaPorte and Allen Counties

The gypsy moth is one of the most destructive forest and landscape pests to invade the Midwest and the Indiana Department of Natural Resources has just completed another round of attempts to destroy isolated infestations of the moth.

Sites in Allen and LaPorte Counties were treated with a biological control organism known as Btk, a bacterium that kills gypsy moths, but is not harmful to people, pets or farm animals. Although the bacteria are common and found in the soil, they are deadly to the gypsy moth larvae.

On May 15th, the DNR completed the first round of aerial spraying for gypsy moth infestations over sites in LaPorte and Allen Counties. A second Btk treatment will be scheduled and announced in approximately 7 to 10 days.

For more information on Gypsy moth in Indiana refer to:


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Information listed is valid only for the state of Indiana.


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The Plant & Pest Diagnostic Laboratory at Purdue University.