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Oregon prepares for Japanese beetle eradication project

Staff Writer |
With funding provided by the State Legislature, the Oregon Department of Agriculture is making preparations for a Japanese beetle eradication project scheduled to begin the middle of April in a 1000-acre.




This is largely residential area of Washington County that includes the Cedar Mill and Bonny Slope communities.

Over the course of about a month, the project will involve individual on-the-ground granular applications of the insecticide Acelepryn on all turf in areas where beetles were trapped last year.

Acelepryn targets Japanese beetle grubs and is safe to humans or domesticated animals if used according to the label.

Each of the area’s approximately 2,500 residences will be treated once in April or May by a professional pest control service conducting the applications on behalf of ODA.

The method of treatment does not include a liquid spray or aerial applications and will be conducted only on turf.

The current Japanese beetle eradication project is a long term effort. Over a five-year period, the annual treatments are expected to start sometime each April and be finished, at the latest, by the end of May.

A record-breaking 369 Japanese beetles were found in traps placed in the area last year as well as numerous live beetles found feeding on roses and other plants.

The invasive insect pest can be destructive in urban and agricultural environments.

An ODA risk analysis shows the economic impact to all crops, commodities, and other related businesses could be as much as $45.5 million if Japanese beetle becomes established in Oregon and generally dispersed throughout the state.


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