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Mulching around my tree, how can I get it right?

Q: I'm putting cardboard and chipped wood over much of my backyard to keep the weeds down. How much room should I leave free of cardboard around the trees (one planted only a year ago) so they get enough water (whether ...

A: View answer | View all featured questions

Why Does Your Tree Look Sick?

Most “sick tree” problems can be traced back to underlying stresses that have reduced the tree's vigor, making it more vulnerable to diseases or insect pests.

Jun 2018 | Article

Keep those gray fuzzy strawberries in check

Proper watering and yearly renovation can help stem strawberry gray mold, also known as Botrytis fruit rot.

May 27, 2011 | News Story

How to collect a plant specimen for disease diagnosis

A guide for how to collect and where to get a sample analyzed for plant diseases.

Melodie Putnam, Carol Savonen | Jul 2014 | Article

Mold Control: Home Inspection Checklist

Guidelines for inspecting your home for sources of moisture and steps for control.

Jeanne Brandt, Susan Busler | Mar 2007 | Article

Grapevine Trunk Diseases in Oregon

A summary of the main trunk diseases causing issues in Oregon and management methods.

Melodie Putnam | Mar 2019 | Article

Five tips to winterize your trees

Your trees may still need attention even in the coldest days of winter.

Jan 17, 2014 | News Story

Sunflowers burst onto scene with new personalities

The iconic flowers come in new colors and textures

Kym Pokorny | Aug 26, 2016 | News Story