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Will banana slugs munch my plants?

Q: Are banana slugs harmful to my flower or vegetable garden? I remember learning that they are beneficial but I would like to clarify. The internet is giving me very mixed answers.

A: View answer | View all featured questions

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

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

Less toxic iron phosphate slug bait proves effective

OSU research indicates that the less toxic iron phosphate containing slug baits are as effective as those with metaldehyde.

Feb 25, 2008 | News Story

Homemade Remedies for Pests and Diseases

Home remedies have shown some effectiveness against many garden pests and diseases.

Jul 2017 | 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

Slinky, slimy slugs on the loose and chomping through gardens

Control plant-eating mollusks early and often

Kym Pokorny | May 5, 2017 | News Story

Choose blight-resistant hazelnuts for your orchard

Gardeners with small-scale orchards can take advantage of hazelnut varieties bred in recent years at Oregon State University that resist eastern filbert blight.

Jan 18, 2013 | News Story

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