Aerial spraying for gypsy moths in Woodway to begin May 15
The Washington State Department of Agriculture (WSDA) plans to begin aerial spraying to eradicate gypsy moth introductions – including the first-ever detection of the Hokkaido gypsy moth in the United States – starting Friday, May 15 in Woodway, weather permitting. The spraying will not impact Shoreline; however, residents close to Woodway may notice low flying aircraft during applications.
The treatment consists of aerial applications of a soil bacteria called Bacillus thuringiensis var. kurstaki, or Btk, which is an insecticide approved for use in organic agriculture and in organic gardening. It has an excellent safety record around people, plants, pets, fish, birds and bees and has been used globally for decades as a safe and effective treatment for combatting gypsy moth. Treatments occur as gypsy moth caterpillars emerge in the spring and begin to feed on vegetation. In total, WSDA will aerially treat about 1,300 acres in Snohomish County.
For more information, visit WSDA's 2020 Gypsy eradication webpage.