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Caterpillar web on plum tree? #879088

Asked July 28, 2024, 10:03 AM EDT

I’d love to know where this caterpillar web on my plum tree should be removed as it looks like it is killing the branch. We are in Terrebonne.

Deschutes County Oregon

Expert Response

Hi John,

Thanks for the photos.  I can't see the caterpillars very well but the pattern of damage and what I can see of the caterpillars suggests this is  Fall Webworm.   More information and management can be found here: 

https://extension.usu.edu/planthealth/research/fall-webworm

https://ipm.ucanr.edu/PMG/GARDEN/FRUIT/PESTS/fallwebworm.html

Lisa

Lisa Cowan

Outreach Program Coordinator – Community Horticulture Program

Oregon State University

OSU Extension Service – Deschutes, Crook, Jefferson Counties

3800 SW Airport Way, Bldg #4

Redmond, OR 97756

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An Ask Extension Expert Replied July 29, 2024, 5:17 PM EDT
Thank you!

John Redwood (Evons)
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On Mon, Jul 29, 2024 at 14:17 Ask Extension <<personal data hidden>> wrote:
The Question Asker Replied July 29, 2024, 5:27 PM EDT

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