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Identity of insect in Blueberry patch #808008

Asked August 25, 2022, 1:51 PM EDT

Please help us identify this insect. We are not sure if it is a hazard or beneficial. Thank you Emily & Kristi Brightwood, Or.

Clackamas County Oregon

Expert Response

Thank you for your question.  I believe it is a twice-stabbed stink bug, but since the photo isn't taken directly above the insect, I can't see the pattern very well.  Stink bugs in Oregon that are found in crops are listed and shown here:  https://www.oregon.gov/oda/shared/Documents/Publications/IPPM/StinkBugGuide.pdf
This type of stink bug isn't harmful, but monitor your plants for damage.  Good luck!
An Ask Extension Expert Replied August 25, 2022, 2:12 PM EDT
Thank you so much for your response. 

I have quarantined a few of the small shiny black beetles that were clustered together with slightly larger ones with yellow colour.  
Several days later they appear to be maturing into what look like the boxelder bugs in the insect ID charts.
Interestingly they turn yellow  for a short time as they mature. 

Thanks again for your time & help. Most definitely we will be watching for Berry patch damage.  

On Thu, Aug 25, 2022, 11:12 Ask Extension <<personal data hidden>> wrote:
The Question Asker Replied August 30, 2022, 6:51 PM EDT
You're right!  An instar I could not find!
An Ask Extension Expert Replied August 30, 2022, 7:05 PM EDT
Thank you so much! 

On Tue, Aug 30, 2022, 16:05 Ask Extension <<personal data hidden>> wrote:
The Question Asker Replied August 30, 2022, 7:21 PM EDT
Welcome!  Isn't research fascinating?
An Ask Extension Expert Replied August 30, 2022, 7:22 PM EDT

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