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You are here: Home / Archives for Growing Knowledge

Growing Knowledge archive

Note: This article is part of the Growing Knowledge series in Digger magazine. This series is provided by Oregon State University in collaboration with the United States Department of Agriculture and in partnership with the Oregon Association of Nurseries.

Researchers roundup

By Lloyd Nackley — Posted July 26, 2023

Get to know the horticultural researchers at OSU and USDA Many programs focus on nursery, greenhouse, landscape and related crops at Oregon State University (OSU) and the Horticulture Crops Research Laboratory at the Agricultural Research Service (USDA ARS), the principal in-house research agency of the United States Department of Agriculture. Here are some of the […]

Filed Under: Beetles, Blights, Borers, Boxwood Blight, Emerald Ash Borer, Growing Knowledge, Insects, Phytophthora, Plant Diseases, Plant Pests and Diseases, Pythium Root Rot, Root Rots, Verticillium Root Rot Tagged With: Digger, Digger magazine

What’s growing on?

By Ryan Contreras — Posted June 21, 2023

OSU plant breeding program shows progress on promising new cultivars The plant breeding program at Oregon State University is continually working to bring new plants to market that will make growers more profitable and perform well for consumers. On behalf of the program, I wanted to update the industry on these efforts. New plants build […]

Filed Under: Growing Knowledge Tagged With: Digger, Digger magazine, OAN Members, Plants

Measuring low-water stress

By Lauren Oki — Posted May 31, 2023

Expansive study evaluates climate-ready landscape plants for the western U.S. By Loren Oki and Jared Sisneroz We have all experienced extreme weather conditions, from heavy rain and snow to prolonged droughts, which have become more frequent in recent years. In response to the droughts that have threatened our water supplies, regulatory restrictions have been put […]

Filed Under: Growing Knowledge Tagged With: Digger, Digger magazine, Plants

Learning, connecting, engaging

By Silvia Rondon — Posted April 20, 2023

Oregon’s Integrated Pest Management Center serves as an innovative pest management hub for growers Article and photos By Silvia I. Rondon Since the early 1960s, the Oregon Integrated Pest Management (IPM) Center has accumulated a rich history of leading and coordinating multistate research and outreach programs to help a broad audience in the agricultural and […]

Filed Under: Growing Knowledge Tagged With: Digger, Digger magazine, Pests and Diseases, Plants

Going with the flow

By Lloyd Nackley — Posted March 24, 2023

Research on plant hydraulics helps explain the effect of drought stress on shade trees By Sadie Keller, Rebecca Sheridan, Scout Dahms-May, Carolyn Scagel and Lloyd Nackley In Oregon’s Willamette Valley, the heart of the nursery industry, rainfall is scarce during the summer and humidity is low. The plant stress resulting from the low soil moisture, […]

Filed Under: Growing Knowledge, Plant Diseases, Plant Pests and Diseases, Root Rots Tagged With: Digger, Digger magazine, Plants

A farmland boom

By Daniel Bigelow — Posted February 24, 2023

Despite soaring interest rates, farmland values in Oregon show no signs of slumping After a record sales year for nursery growers in 2021, the economic outlook for the industry remains mostly positive (McClellan, 2022). One of the main economic issues facing producers is the increasing cost of labor, as general price inflation and a tight […]

Filed Under: Growing Knowledge Tagged With: Business, Digger, Digger magazine

Dogging your voles

By Dana Sanchez — Posted January 30, 2023

Researchers explore whether hounds can assist in timely vole management By Dana Sanchez and Nick Andrews In the big picture, burrowing animals contribute significantly to natural ecosystems and the soils on which our own economies and lives depend. Burrowers contribute to soil aeration, provide nutrients and soil organic matter, participate in redistributing nutrients to the […]

Filed Under: Growing Knowledge Tagged With: Digger, Digger magazine, OAN Members, pests, Plants

How to catch a thrips

By Lloyd Nackley — Posted December 27, 2022

Rigorous scouting can help manage tip-feeding thrips before they cause irreparable damage By Lloyd Nackley and Melissa Scherr Thrips belong to the insect order Thysanoptera, of which there are several species that are damaging to nursery and ornamental crops. Whether there is only one or many, we call them thrips regardless, just like with other […]

Filed Under: Growing Knowledge Tagged With: Digger, Digger magazine, Pests and Diseases

A carbon balancing act

By Peter Szymczak — Posted November 29, 2022

What effects do mowing, fertilization and irrigation have on carbon sink and sequestration in turfgrass ecosystems? Public concerns about climate change and a growing number of government and business commitments to emissions reductions have increased focus on carbon sequestration in vegetated landscapes as a nature-based climate solution. More specifically, landscapes dominated by plants could be […]

Filed Under: Growing Knowledge Tagged With: Digger, Digger magazine

Don’t get burned by charcoal rot

By Jerry Weiland — Posted November 2, 2022

Soilborne fungus can afflict hebes and a wide range of other host plants Hebes (pronounced heebees) are an interesting group of evergreen shrubs, mainly from New Zealand, although there are also a few from South America and French Polynesia. Botanically, they are now placed in the genus Veronica, but many will know them by their […]

Filed Under: Charcoal Rot, Growing Knowledge, Plant Diseases, Plant Pests and Diseases, Root Rots Tagged With: Digger, Digger magazine

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NURSERY NEWS

Terra Gardens owner’s gesture for his mother opens the door to other wheelchair-bound gardeners

OAN announces 2025 Friends of Nurseries award winners

OAN leads grower-driven Japanese beetle solution

AmericanHort president and CEO to step down

In memoriam: Bill Van Belle

Longtime employee buys Heritage Seedlings and Liners

In Memoriam: Melvin John Steffenson

New USDA Census of Hort arriving in mailboxes this month

More Nursery News

From the pages of Digger

March: The Perennials Issue

February: The Greenhouse Issue

January 2026: The Retail Issue

November 2025: The Transportation Issue

October 2025

More issues of Digger

Pests and Diseases

OAN leads grower-driven Japanese beetle solution

Prioritizing nursery pest challenges

New tools in the battle against thrips

Aiming for precision in pest control

Oregon’s nursery licensing program aims to keep the entire industry healthy

More articles

FARWEST SHOW UPDATES

2026 Farwest Show issues calls for speakers

Excitement, optimism prevail at 2025 Farwest Show

Dazzling plants, products garner Retailer’s Choice Awards

Youngblood Nursery wins Best in Show booth honors at the 2025 Farwest Show

Glow Sticks Fescue wins top honors from judges at Farwest Show’s New Varieties Showcase 

More Updates from Farwest

The Value of Membership

AmericanHort president and CEO to step down

OAN honors industry leaders at 2025 Convention

Meet the Leader: Patrick Peterson

More member stories

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