“What Residents Need To Know” Webinar Recording
 Watch this video to learn more about Japanese beetle treatments including how to sign up, prepare for, and know when the treatment is over. Learn how to protect your yard, community, and Washington State from Japanese beetle.
Each year WSDA deploys thousands of traps to monitor for Japanese beetle adults. The program traps around nurseries and farms throughout the state. However, most traps are placed at pathways like airports, railways, or transfer stations. Traps go out in May and are removed in late October. WSDA plans to trap throughout the state for Japanese beetle in 2025 to monitor for new introductions and potential spreads.
If any trap captures multiple beetles, the potential for Japanese beetle to establish becomes a concern. If the pest were to establish, the economic impact to lawns, crops, commodities, and other businesses could cost millions.
Eastern Washington Catches
In 2024, WSDA captured over 26,709 adult beetles in Yakima, Benton, and Franklin Counties. The table below breaks the catches out into three areas.
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Wapato
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1,546
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Sunnyside, Grandview, and Mabton
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24,754
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Pasco
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408
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 In 2025 WSDA plans to continue to mass trap in these areas placing over 5,000 traps. This will be the 6th year WSDA has densely trapped in this area.
Western Washington Catches
In 2024, WSDA captured 32 adult beetles in King County around the Seattle-Tacoma International Airport.
 In 2025, WSDA will begin its first year of densely trapping around SeaTac. Efforts will expand to place approximately 449 traps in a 49 square mile area around each Japanese beetle catch.
2025 Treatment Area Maps
Click the images below to open larger pictures of 2025 planned treatment areas for Pasco, Grandview/Sunnyside/Mabton, and Wapato.
Pasco Treatment Area
Sunnyside, Mabton, and Grandview Treatment Areas
Wapato Treatment Area
 If any portion of a property falls within the treatment zone, the entire property will be treated. Acelepryn® will not be applied to land within the 200 ft shoreline buffer area.
Check Your Mailbox
Later this month, WSDA will mail treatment sign up cards to almost 13,000 residents and businesses in Yakima, Benton, and Franklin counties reminding them to sign up for Japanese beetle treatments.
Treatments need to occur over multiple years to eradicate the Japanese beetle. You must sign up for treatments each year for every property that you own or rent. Help us protect your community by talking to your neighbors and encouraging them to sign up for treatments.
In January, WSDA mailed out treatment requests letters. If you missed or did not receive a treatment request letter and are in a treatment area, you can still sign up for treatments. You can see if you are in a treatment area by entering your address in our interactive map.
Should I Sign Up?
Please take a few minutes to sign up if you are in a treatment area. You can do this multiple ways:
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CITY HALL
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ADDRESS
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HOURS
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Wapato City Hall
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205 E 3rd St, Wapato, WA 98951
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M-Th 7:30 a.m. - 5 p.m.
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Sunnyside City Hall
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818 E Edison Ave, Sunnyside, WA 98944-2206
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M - F 8:30 a.m. - 5 p.m.
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Grandview City Hall
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207 W 2nd St, Grandview, WA 98930
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M - F 9 a.m. - 12 and 1 - 5 p.m.
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Mabton City Hall
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305 Main St, Mabton, WA 98935
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M - F 8:30 a.m. - 4:30 p.m.
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Pasco City Hall
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525 N 3rd Ave, Pasco, WA 99301
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M - Fri 8 a.m. - 5 p.m.
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If you need help or don’t know your PIN, call 1-800-443-6684 or email pest@agr.wa.gov.
News
Japanese beetle treatment area expands in Pasco and Franklin County
Read the latest news release to learn how “we’re going from a one square mile treatment area to about an eight square mile treatment area”
Opinion: The Japanese beetle is gaining on us – step on it
Learn more in this latest article by Yakima Herald-Republic.
Stay Connected
WSDA is dedicated to working with the public to provide information on Japanese beetle. WSDA has created resources for you to help spread the word about WSDA’s Japanese beetle project. They can be shared on social media, in newsletters, on websites and more. Find more information and resources on WSDA’s website.
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