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Japanese beetle eradication program
Program overview
no Japanese beetles
The best way to keep Oregon free of Japanese beetle (JB) is to maintain effective state quarantines, national regulatory programs, annual survey programs, and if warranted, eradication programs.
Quarantines and regulatory programs
ODA maintains an exterior JB quarantine to prevent infested plant material or soil from being shipped to Oregon from out of state. Nurseries importing regulated plant material are required to notify ODA for an inspection. Traps are also placed at nurseries that could be receiving plant material from infested states. Since 1991, ODA has worked with USDA APHIS PPQ, air cargo carriers and the military at Portland International Airport (PDX) to prevent JB from hitching a ride on commercial cargo or military aircraft from infested airports to Oregon under the federal JB quarantine. PPQ monitors JB populations at airports in infested states each year. As soon as population levels pose a risk of live beetles entering aircraft and being transported to nine western states including Oregon, Emergency Action Notifications are issued to air cargo carriers at origin detailing treatment and safeguarding requirements for at-risk aircraft. ODA conducts a trapping survey and follow-up inspections of regulated and non-regulated flights at PDX to determine how effective population monitoring, safeguarding, and treatment procedures are and provides feedback to PPQ and affected carriers.
Eradication programs
If an infestation is found, pesticides such as Tempo™ and Merit™ are used to eradicate it before it can spread to other areas. Tempo™ is applied to all trees, shrubs, turf and groundcovers for adults. Merit™ is applied to all irrigated turf, groundcovers and soil for grubs. Using this strategy, ODA has conducted three successful JB eradication programs since 1988 in residential parts of Tigard, Lake Grove and Cave Junction. Eradication treatments at PDX and vicinity continue due to continued trap catches in the area. These treatment programs are costly, difficult to implement, and less acceptable to the public than other pest eradication programs due to repeated soil and foliar chemical pesticide applications. ODA has worked with the Pesticide Division, the Oregon Health Division, the Oregon Poison Center, the National Pesticide Information Center and private consultants to select pesticides that are effective for JB and have a high margin of safety for homeowners and the public when used according to label directions. Informational materials are provided and permission is sought from homeowners or businesses before any eradication treatments are conducted.
More information
Merit™ (pdf, 20 KB)
Japanese beetle information
Japanese beetle survey in Oregon
Japanese beetle quarantine