Orchard Crops/Tree Fruits

Research and Extension

The Orchard Crops Extension Program is based out of the North Willamette Research and Extension Center in Aurora, OR.  Our research is focused on developing best management practices for growing hazelnut and fruit tree in the Willamette Valley, and educating growers in the areas of orchard management, production, and pest control.  

Orchard Crops

  • Hazelnuts and Nut Crops
  • Fruit Trees                         

The North Willamette Research and Extension Center is home to the Orchard Crops Research and Extension Program led by Dr. Nik Wiman, which has a mandate to provide applied research and Extension for the Oregon hazelnut industry. We work closely with the industry to help solve problems related to hazelnut production. This includes research on insect pests (including the invasive Brown Marmorated Stink Bug, (BMSB) and beneficials, nutrient management, irrigation management, and emerging disease issues. We also work with other orchard crops including peaches, almonds and cider apples. We offer a number of workshops in any given year covering topics such as pruning, pest management, and cover crops.

Researcher/Extension Specialist: Nik Wiman

Upcoming Workshops

Please click here to register for any of our upcoming workshops


Past Workshops

Establishing Equitable Leases for Hazelnut Orchards

This workshop taught attendees about key factors for establishing an equitable lease for hazelnut orchards. The presentation will be posted here soon!

AgBiz Logic is a sweet of economic tools, which can help guide businesses in making economic decisions. The link for the AgBiz Logic page can be found here. To access the AgLease 101 page, which helps land owners and land operators learn about alternative lease arrangements, click here.

Pruning Workshop

This workshop provided an opportunity to learn about pruning several different varieties of young hazelnut trees. This event was held in cooperation with Willamette Hazelnut Growers. 

If you were not able to attend the workshop, or would like to review some of the basic information that was presented, please take a look at our handout here.

Sprayer Calibration Workshop

The Sprayer Calibration Workshop was a great success, please click here to download the PowerPoint presentation from the class.

Click here to access TurboMist's free online software that can assist with calibrating your airblast sprayer.

Click here to obtain a free copy of Airblast 101- A comprehensive handbook that describes best practices for airblast spraying.


Social Media


OSU Hazelnut Extension Facebook Page

OSU Cider Apple Facebook Page

OSU Tree Fruit Extension Facebook Page

Please Click HERE to Donate to the Orchard Crops Extension Program