Search OSU Extension

Showing 1 - 9 of 9 results.

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

Plants Causing Nitrate & Oxalate Poisoning in Pastures

Some plants absorb excess nitrates or oxalates from the soil and store them in plant tissues. Toxicity problems can occur in animals which feed on these plants.

Mylen Bohle, David Hannaway, Andy Hulting, Karin Neff | Apr 2018 | Educational Document

Wireworm: Biology and Nonchemical Management in Potatoes in the Pacific Northwest

Wireworms are among the most destructive of soil insect pests. This publication explains the wireworm life cycle and describes a program for monitoring and risk assessment. Nonchemical management methods are suggested, including crop ...

Silvia I. Rondon, Nick Andrews | Dec 2008 | OSU Extension Catalog

Using Entomopathogenic Nematodes for Crop Insect Pest Control

Topics covered include the life cycle of entomopathogenic nematodes; how they control insect pests; obtaining, using, and storing; soil conditions necessary; application preparation, equipment, and rates; pesticide safety; and websites that provide more specific information.

May 2012 | OSU Extension Catalog

The Colorado Potato Beetle in the Columbia Basin

Oregon State University Crop and Soil Science Masters student Pahoua Yang focuses her research project on Colorado potato beetle, Leptinotarsa decemlineata. Her project is to determine baseline information for several commercial ...

Silvia I. Rondon | Oct 2019 | OSU Extension Catalog

Pot up some bulbs and dream of spring

Spring-blooming bulbs do great in containers

Heather Stoven | Oct 14, 2017 | News Story

April garden calendar

Garden planning, maintenance and pest management tips for the month of April.

May 2018 | Article

Planting Bare-Root Roses in March

If you have ever purchased a bare-root rose, your first question might have been, will this awkward plant really produce roses? Yes it will!

Barbara McMullen | May 2007 | Article

May Garden Calendar

Information about garden planning, maintenance and clean up, pest monitoring and management, houseplants, and indoor gardening for the month of May.

May 2018 | Article