WISCONSIN DEPARTMENT OF AGRICULTURE, TRADE AND CONSUMER PROTECTION

GYPSYMOTH AERIAL SPRAYING UPDATE: 22-MAY-2018


WHAT: Gypsy moth aerial treatments by theWisconsin Department of Agriculture, Trade and Consumer Protection’s Gypsy MothSlow the Spread (STS) Program. The STS aerial program for 2018 consists of 36treatment sites, involving approximately 90,000 acres across 14 counties inwestern Wisconsin. The Wisconsin Department of Natural Resources’ SuppressionProgram will also treat 7 sites in Dane County totaling 485 acres.


WHEN: Wednesday, 23-May-2018, weatherpermitting. 

WHERE: Select sites in Buffalo, Dane,and Eau Claire County. A progress chart and maps of treatment sites can beviewed online at http://gypsymoth.wi.gov

WHY: The treatments are necessary tocontrol the spread of gypsy moth, a destructive and invasive pest that feeds onthe leaves of oaks, maples, crabapple, birch, and many other species of treesand shrubs. 

PLANDETAILS: The firstBtk treatments will begin in the previously mentioned counties covering 5sites. Most sites may have more than one treatment planned and will betreated again on a later date.

TREATMENTS:Planes will applyForay 48B, which is approved for use in certified organic production or foodprocessing by the Organic Materials Review Institute. The insecticide contains Bacillusthuringiensis var. kurstaki or Btk. Btk is a naturally occurringsoil bacterium that is poisonous to gypsy moth caterpillars when consumed. Btkbreaks down in sunlight within a few days.

OTHERDETAILS: Applicationscan start as early as sunrise and will continue until the day’s plan iscomplete and as weather conditions allow. Treatment applications require calmwinds, high humidity, and no precipitation.

The planesare loud and will fly low, just above the tree canopy.

Sprayingdoes not affect organic certification.

Theinsecticide is not toxic to people, bees, animals, birds, or plants.

People whohave allergies may wish to stay indoors or leave the area until treatments aredone. Pets or livestock may be frightened by the noise of the low-flyingplanes, so keep them indoors or monitor them.

Most siteswill receive a second application of Btk about 7–10 days after the firstapplication.

FOR MOREINFORMATION:

Treatmentupdates will be available as a recorded message on the toll-free hotline1-800-642-6684, press 1. You also can get instant updates by connecting with uson Twitter (http://twitter.com/widatcp) or Facebook (http://www.facebook.com/widatcp). You can also send an e-mail to gypsymoth@wisconsin.gov 


 


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