Yamhill County Extension

Red Clover in bloom.

2050 Lafayette Ave
McMinnville, OR 97128
United States

Office hours

Monday - Friday: 8:00 am-5:00 pm
Currently closed

Office fax

Yamhill County Extension

News & Announcements

Welcome to the new OSU Extension website

OSU Extension has been serving Oregon for more than 100 years, and our previous website launched in 2011. It was time for an upgrade! Click the title of this announcement to read more about the upgrade and share your feedback.

Want to join 4-H? Have questions about canning, raising crops or livestock? Interested in gardening or starting a Small Farm? For these questions and more, check us out!  We are Oregon State University in your community!

Oregon State University Extension Service has a long history of serving Yamhill County, beginning in 1904 with the state's first 4-H program. We bring the research and resources of Oregon State University to you.

4H Mastershowmanship
Master Gardeners at the Fairgrounds

Upcoming Events

2018 Summer Meal Sites - Yamhill County

Yamhill County Extension Event

Wed, Jun 13, 2018 4:00 pm - Fri, Aug 24, 2018 5:25 pm
A list of summer meal sites in your area and throughout the county. Contact YCAP for Food Bank information.
Workshop participant looking at vineyard pests under a stereoscope.

Bilingual Workshop on Identification and Monitoring of Vineyard Pests and Diseases


Thu, Jul 19, 8:00 am - 3:00 pm
This Salem workshop will be offered in Spanish to train vineyard staff how to identify key pests and diseases in the vineyard. This includes field visits and hands-on identification of pests and diseases.

Polk County Canning Tuna Class


Sat, Jul 21, 11:00 am - 3:00 pm
Learn tips and strategies to safely home can tuna.

Preserving the Valley's Vegetables - Marion County


Tue, Jul 24, 6:00 pm - 8:30 pm
Join us in Salem to learn how to safely and confidently pressure can vegetables.

4-H Wild West Camp - 5 Nights

Yamhill County 4-H Event

Mon, Aug 13, 2018 - Sat, Aug 18, 2018 (All Day)
Camp is full and registration has closed.

Preserving Tomatoes & Salsa - Marion County


Mon, Aug 13, 6:00 pm - 8:30 pm
Learn safe methods in this Salem class for preserving tomatoes and salsa.
Pinot noir vineyard

From the Bud to Bin: Vineyard Management Effects on Yield


Wed, Aug 29, 9:00 am - 12:00 pm
This workshop will provide you with information about bud fruitfulness, how it is formed, and what effects vineyard practices such as pruning method (cane vs. spur), vigor level, and N fertilization have on yield potential and yield at harvest. Field visit in the McMinnville area included.
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