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Lime requirement buffer pH update 2019

This fact sheet describes recent discrepancies between SMP and Sikora buffer pH lime requirement tests for western Oregon soils and provides recommendations for what to do. Many soil testing labs in the U.S. are switching from ...

Nicole Anderson | Sep 2019 | Article

Are madrone trees mean?

Q: I have a small grove of Madrones behind my house. I have put a couple of annual beds under them but nothing seems to grow under them. I have looked all over the net to no avail on this issue. I did amend the ...

A: View answer | View all featured questions

Use Caution When Irrigating Oaks and Madrones

Excessive summer irrigation of oak and madrone trees may promote fungal diseases such as the oak root fungus (aka armillaria root disease) and crown rot.

Jun 2018 | Article

What’s Wrong With My Madrone?

This article briefly discusses the most prevalent madrone disease problems, then offers a broader perspective on the health of this southern Oregon native.

Max Bennett, Dave Shaw | Nov 2006 | Article

Poison hemlock and Western waterhemlock: deadly plants that may be growing in your pasture

Poisonous plants are a major cause of economic loss to the livestock industry. Two poisonous plants common to Oregon are poison hemlock and Western water hemlock. Ingestion of either by humans or livestock typically results in death.

Scott Duggan | Jun 2018 | Article

Native madrones are special to the Northwest

There are probably few plants that are more strongly identified with this area or are held in greater affection than the madrone tree.

Jan 27, 2006 | News Story

Poison Hemlock (Conium maculatum) – Silage Will Not Reduce the Toxin

Poison hemlock is one of the most poisonous of plants. Silage making has been used to reduce the concentrations of toxins in a variety of crops. Poison hemlock alkaloids are found in different concentrations depending on ...

Cassie Bouska, Amy Peters | Jan 2006 | Article

Developments in high density cherries in the USA

In the last few years there is an increasing interest in high density systems, especially in the Pacific Northwest

Lynn Long, Tim Facteau, Roberto Nuñez-Elisea, Helen Cahn | Jun 2018 | Article

Five most important attributes of sweet cherries and the varieties that fill these needs

The U.S. Pacific Northwest is the most important sweet cherry production region in North America, however, as recently as the early 1990's fresh cherry production consisted primarily of one variety, 'Bing'. In recent years there has been increased interest in new varieties.

Lynn Long, Roberto Núñez-Elisea, Helen Cahn | Apr 2005 | Article

Growing Quality Cherries

The United States is one of the leading producers of sweet cherries in the world. In the U.S. the majority of cherries are produced in the Pacific Coast states of Washington, Oregon and California with the greatest volume of production in the north.

Lynn Long | Jul 2005 | Article