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Grafting is a Biological Disease Management Strategy

Grafting is an age-old technique used in plant propagation to combine two plants so that one plant provides a desirable rootstock and the other provides desirable fruit characteristics (Fig. 1). While...

OSU Extension Catalog

Soil Nitrate Testing for Willamette Valley Vegetable Production

A soil nitrate test measures the concentration of nitrate in the soil at a specific moment in time, including nitrate originating from organic inputs, fertilizer, and soil organic matter. This publication describes how to use in-season soil nitrate testing to adjust sidedress N fertilizer...

By Dan Sullivan, Ed Peachey, Aaron Heinrich, Linda Brewer, Nick Andrews

Latest News

News Story

Virulent pathogen uses a genetic decoy to foil host’s immune defenses

Jan 13, 2017
A one-two punch may explain why Phytophthora is so devastating

By Gail Wells
Jan 13, 2017

News Story

New web-based tool helps farmers plant veggies at just the right time

Dec 9, 2016
Croptime helps farmers target harvest dates, boosting profit and sustainability

By Gail Wells
Dec 9, 2016

News Story

New OSU slug expert will help Oregon farmers combat the slimy pests

Apr 11, 2016
Rory McDonnell studies environmentally friendly slug control methods--such as essential oils from plants

By Gail Wells
Apr 11, 2016

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Why is my artichoke sprouting in September?

My globe artichoke plants have produced well this Spring and early Summer. In mid summer, two shoots emerged from a plant. I separated the shoots when they were 12" tall and planted them. Both shoots are growing slowly, after the initial shock. Now, in late summer, the same "mother" plant has six...