Urban Forestry

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Can you identify this black and white bug?

I have lived in Oregon all my life and never seen this kind of bug before, what is it? It's not very fast moving, this one wasn't anyway.

Online Resource

International Society of Arboriculture (ISA) - Pacific Northwest Chapter

The Pacific Northwest Chapter of the International Society of Arboriculture (PNW-ISA) is a member organization for arborists and urban foresters. We bring together professionals from Alaska, Idaho, Oregon, Washington, and British Columbia. Since 1979, we have been a resource and advocate for the green industry.

What is up with this tree?

We had a viewer send in this photo of a tree in Cedar Canyon near Banks, Oregon. We posted this to the OPB/ Oregon Field Guide Facebook page and now I feel a responsibility to give folks an accurate ID of what is causing this strange formation atop the tree. Mistletoe? Witch's Broom? Something else?...

By Dave Shaw

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Upcoming Events

Linn County Master Gardeners Event

Webinar: Weird & Wonderful World of Plant Galls

Mon, Nov 19, 11:00 am - 12:00 pm

This webinar is part of the 2018 series of Advanced Training Webinars for Master Gardeners sponsored by Oregon State University Extension.

Coos County Extension Event

2019 Master Gardener Training

Thu, Jan 10, 2019 9:00 am - Thu, Mar 14, 2019 4:00 pm

Oregon State University Extension Service Master Gardener program develops and delivers research based information to educate Oregonians about the art and science of growing and caring for plants. The MG Training program facilitates the instruction of highly educated corps of volunteers who can extend sustainable gardening information to their communities through education and outreach programs.

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Brooke Edmunds

Community Horticulture/Master Gardeners

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Ask an Expert is a way for you to get answers from the Oregon State University Extension Service. We have experts in family and health, community development, food and agriculture, coastal issues, forestry, programs for young people, and gardening.

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Can you identify this black and white bug?

I have lived in Oregon all my life and never seen this kind of bug before, what is it? It's not very fast moving, this one wasn't anyway.

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