In 2015, Washington had a record catch of gypsy moths in Western Washington. Gypsy moths pose a tremendous threat to agriculture and forestry in Washington. They have the potential to not only devastate crops, timber, and nursery products, but if they were to become established it would also mean costly quarantines for these industries.
To address these widespread introductions, WSDA is proposing to treat more than 10,000 acres over seven different sites in Western Washington, including Tacoma and Seattle, with aerial applications of Btk – a naturally occurring soil bacteria approved for use as an insecticide in organic agriculture. Btk has an excellent safety record for humans, pets, birds, fish, and bees.
Presently, state and federal environmental assessments are available for review and comment. Comments will be reviewed as part of the process for finalizing the treatment plan. Click here to view the documents. Comments are due by March 30.
Learn more about the threat the gypsy moth poses, review the gypsy moth treatment proposal, and comment on the SEPA and NEPA documents on our website at agr.wa.gov/gypsymoth.