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Content by Steve Renquist

Fruit tree pest management

Home orchardists often consider fruit tree pest management challenging. Sustainable fruit production aims to reduce inputs of water, fertilizer, pesticides and labor. With some specific knowledge, you can manage fruit tree pests in a sustainable way.

Cody Copp, Steve Renquist | Jan 2025 | OSU Extension Catalog

Native trees thrive in waterwise Oregon landscapes

Many of Oregon's native hardwood trees are drought-tolerant and do well in an urban landscape.

Sep 24, 2024 | News story

Oregon State University Extension Service

Recognize the Symptoms and Causes of Stunted Growth in Vineyards

Patricia A. Skinkis, Vaughn Walton, Amy J. Dreves, Clive Kaiser, Steve Renquist, Steve Castagnoli, Rick Hilton and Linda Brewer

EM 8975

Spring frost, herbicide drift, water or nutrient stress, diseases, and insect and mite pests can cause similar symptoms of stunting or distorted growth in grapevines. Recognizing the symptoms and distinguishing their causes is the first step in diagnosing problems and developing a management plan. With many color photos, this publication will help you identify probable causes of distorted shoot and vine growth in vineyards and direct you to other resources that can lead to solutions

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Fruit thinning

There are several reasons to thin tree fruits: to increase fruit size, ensure a good crop each year, and protect limbs from breakage. Learn how to thin various types of fruit trees.

Steve Renquist | Jun 2024 | OSU Extension Catalog

Do madrone trees harm my garden?

P: 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 ...

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What exotic fruits do well in Oregon?

P: What kind of exotic fruit trees can I grow in Oregon? I want to give it a shot, but not if there isn't a chance that I'll get any fruit.

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Fruit tree integrated pest management

A look at integrated pest management in "Concepts from Start to Finish". A good IPM program decides if, when, where, and what mix of control methods are needed. Using diverse control strategies helps to control pest resistance, resurgence and replacement.

Steve Renquist | Mar 2024 | OSU Extension Catalog