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Community Open House A drop-in style, open house was held at Sunset High School on Tuesday, February 19th. Attendees who came were able to ask questions of the expert team leading and supporting the project. Info Session: Japanese beetle in Washington County An online information session was held on Wednesday, February 13th. The Oregon Department of Agriculture welcomes your questions and comments. Find out how to contact the project team by visiting our Contact Page.
*Edited February 22, 2019 to include up-to-date opportunities to learn more. [Category Tags: Beetles in Oregon, Community Engagement, Japanese Beetle Basics, Japanese Beetle Threats, Larvicide - Acelepryn, Quarantine, Treatment, Yard Debris] Invasive Japanese beetles have been wreaking havoc on farms and in gardens across the East Coast and Midwestern United States for decades. Beetle larvae and adult beetles eat the roots, leaves, and flowers of many important agricultural and ornamental plants and trees. New research shows that this invasive species may also be a significant threat to the habitat and survival of one of America’s favorite insects: the monarch butterfly.  A monarch butterfly feeding on swamp milkweed, a common species of milkweed in the midwestern and northeastern United States. Monarch butterflies depend on the native plant milkweed for habitat and food throughout their migration routes, from Mexico to Canada. Japanese beetles have been found feeding on milkweed flowers, decreasing their fruit and seed sets, and disrupting the next generation of plants. Monarch butterfly populations have already decreased dramatically--around 90%-- in the past 20 years, primarily due to habitat loss, including milkweed decline.
In 2016, the Oregon Department of Agriculture detected Japanese beetles in and around Washington County. ODA recognizes Japanese beetles as a threat to Oregon’s economy and natural ecosystems, and is starting its third year of its eradication and prevention project. Read more about the study from the University of Kentucky. [TAGS: Invasive Species, Japanese Beetle threat]
How can you identify a Japanese beetle? Japanese beetles have three main identifying characteristics:
The Japanese beetle is the only beetle in this area that has all three of these characteristics. There are a few other beetles in the area, both native and non-native, that are also metallic or otherwise look similar. Check out our Japanese beetle look alike guide to see who’s who. Examples of common beetles and pests that ARE NOT Japanese beetle:  What to do if you come across some beetles? If you are within the treatment area and see adult Japanese beetles, then the ODA advises that you dispose of them in a container of soapy water. Using store bought insecticides will not significantly decrease Japanese beetle populations. If beetles are observed outside the treatment area, please put the specimen in a container or bag and email or call ODA at the contact information provided below.  A Japanese beetle trap. If you live in the quarantine area, you can help the project by giving permission to ODA to put one in your yard! How long will this last?! Japanese beetles are already an issue being addressed in Washington County, and the issue can’t be solved overnight. It may take up to 5 years to eradicate the population entirely. How to help be part of the solution! Cooperation from those in the treatment area is critical to protect Oregon’s gardens and agricultural economy! Here’s what you can do to help:
[TAGS: Japanese beetle threat, Japanese beetle basics, Beetles in Oregon, Invasive species] Beetles can be moved in yard debris through the removal and movement of items such as sod and grass clippings. The risk of moving beetles is highest over the summer when adult beetles are emerging from the soil and moving around to feed and find mates.  Hungry beetles are extremely active during the summer months. Photo provided by Melissa Schreiner, Colorado, USA. It is very important that beetles are contained within Washington County while treatment takes effect. Containment efforts are ramping up, with a quarantine on all yard debris still in effect and expanding in 2018. Residences will receive electronic notices from Oregon Department of Agriculture, along with other communications planned throughout the summer.
For more information about the quarantine check back on our Prevention page for the most recent information. [TAGS: Beetles in Oregon, Japanese beetle basics, Japanese beetle threat, Invasive species, Gardeners, Quarantine, Residents, Landscapers, Washington County, Yard debris] |
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This website is intended to provide readers with information that has been peer reviewed and produced from transparent and accountable sources. The Oregon Department of Agriculture is the lead agency for this project and this website is maintained by Samara Group.
Photos by Jessica Riehl unless otherwise noted. |
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