Gypsy Moth

2017 NOTICE OF AERIAL SPRAYING FOR THE SUPPRESSION OF GYPSY MOTH LARVAE IN SELECTED AREAS OF THE CITY OF WALKER

 Certain selected areas in the City of Walker are scheduled to receive aerial application of the bacterial agent Bacillus thuringiensis (B.t.) for the suppression of Gypsy Moth larvae.  Maps of these areas are available for viewing at Walker City Hall and on the City web site at www.walker.city.  The applicator for the program is Hamilton Helicopters, Inc., PO Box 264, Hamilton, MI 49419, (616) 291-5808.  The B.t. brand will be Foray 76 or equivalent supplied by Valent Biosciences Corporation.  The spraying will be done by aircraft when the weather conditions are suitable.  The exact dates cannot be predetermined as application is weather dependent.  Startup is tentatively planned for June 2, 2017.

 The insecticide B.t. is derived from a naturally occurring bacteria and is known only to affect caterpillars by destroying their stomachs after they eat the material.  It does not affect honeybees or other non-leaf eating insects, birds, fish or mammals.  The B.t. is applied at a quart per acre in a very fine mist that targets the trees.  The carrier liquid is water and drying usually takes place within a few minutes.

 Neal Swanson, Project Manager
220 W. Ellsworth Street
Midland, MI  48640-5194
(989) 689-0223

Gypsy Moth Summary
Gypsy Moth Life Cycle Guide 
Gypsy Moth Survey Report and Map 2017