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Alfalfa soil fertility and fertilization requirements

A productive alfalfa crop removes significant quantities of macronutrients and small amounts of micronutrients from the soil (Table 1). A complete fertilizer program is essential to ensure a highly productive, long-lived stand.

David Hannaway, Mylen Bohle, Daniel Miles, Yitian Lin, Brianna Randow | Sep 2019 | Article

Should I Worry about Heavy Metals in My Garden Soil?

What do we know about heavy metals in soil? What do we know about lead exposure through soil and garden plants? What do we know about cadmium and arsenic in soils? What can I do if I’m at risk for heavy metals in my garden soil?

Jul 2016 | Article

Are there insect issues with birch trees?

Q: Is it true that white paper birch in the Willamette Valley have been infested with insect like beetle? I wanted to plant one this spring and my yard maintenance service told me I should consider a different type due to the insect problem.

A: View answer | View all featured questions

Blueberry bacterial and fungal diseases

Pacific Northwest blueberry growers must identify and control a number of bacterial and fungal diseases in order to ensure the highest yields. Fortunately, only a few of the diseases that occur on highbush blueberry in this region cause significant losses when left unchecked.

Jay Pscheidt, Jerry Weiland | Mar 2015 | Article

Why are my trees dying?

Trees all over Oregon are displaying signs of poor health. People are quick to blame insects, but insects are rarely the underlying cause of the problem. Drought and other stressors can make trees vulnerable to pests and disease.

John Punches | Sep 2019 | Article

Grazing Management Options for Riparian Areas

Our hope is to make you better acquainted with the important functions of riparian areas on your ranch, give you some ideas on how to manage them effectively, and provide a framework for developing grazing management that incorporates these areas into your overall cattle operation.

Dustin Johnson | Dec 2019 | Article

Monitoring Grazing Lands in Oregon

A critical, but often overlooked step in the development of a comprehensive grazing management plan is a well-defined monitoring program for evaluating progress towards meeting management objectives.

Dustin Johnson | Sep 2019 | Article

What are those 'worms' in my firewood?

You may have encountered white, segmented “worms” or grubs when chopping firewood and wondered what they were. Common questions include, did they kill my tree? And are they a danger to other trees? The quick answers are no, and no.

Jun 2018 | Article

Grazing management of improved pastures

Improved pasture and proper grazing management allows producers a way to keep production costs to a minimum by efficiently producing high quality forage. When properly managed, grazed forage is higher in feed value than hay or ...

Amy Peteres | Sep 2019 | Article