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[DNR] Gypsy moth treatments may begin week of April 16
Start Date: 4/4/2012
End Date: 4/4/2012
Entry Description
Due to the warm early spring weather, aerial treatments to slow the spread of gypsy moths in a selected area of Porter County could begin the week of April 16.

The timing of the treatments depends on weather conditions. If the weather cools and slows the emergence of the caterpillars, treatments could be delayed until the week of April 23. DNR will issue updates to local media as the date draws closer. Updates and detailed maps for the treatment site are also at gypsymoth.IN.gov (look for the link titled Cobbs Corner 12).

If rain or high winds develop once a treatment begins, the treatment will be halted and rescheduled for the next suitable day.

The Porter County site will receive two treatments, spaced approximately four to 10 days apart. The second treatment is scheduled for the week of April 23, but is also weather dependent.

During treatments, people will see a yellow crop duster airplane flying 50-125 feet above the treetops. The flights will start at sunrise and continue as long as weather permits. With favorable weather, treatments should be completed by late morning.

The airplane distributes a fine spray containing the bacteria Bacillus thuringiensis var. kurstaki, often referred to as Btk, into the treetops of infested areas where gypsy moth caterpillars feed. Btk occurs naturally in soil. Btk kills gypsy moth caterpillars as they feed on tree leaves by disrupting their digestive systems.

Btk has been used for decades by organic gardeners and has an excellent safety record with people and animals. People who live or work near the treatment areas might choose to take common-sense precautions, including staying inside when the planes are flying and for about 30 minutes after treatments are complete. This gives the material time to settle out of the air and adhere to treetops. People with questions may call toll-free at 1-866-NO-EXOTIC (663-9684) or call their county extension office at 1-888-EXT-INFO (1-888-398-4636).

For more information, see gypsymoth.IN.gov.
Location Information:
Porter County
Contact Information:
Name: Marty Benson
Phone: (317) 233-3853
Email: dnrnews@dnr.in.gov
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Entry Type:
Press Release
Entry Category:
  • Alerts and Notification
  • IN.gov Category:
  • Business & Agriculture
  • Agency Name
    Natural Resources, Indiana Department of

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