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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.

OSU Plant Clinic helps diagnose plant problems

By Mana Ohkura — Posted July 23, 2025

Are you concerned your plants have a pest or pathogen? The Oregon State University Plant Clinic is here to help.

Filed Under: Growing Knowledge

Researchers examine two alternatives for fighting liverwort

By Lloyd Nackley — Posted June 25, 2025

Weeds, especially liverwort (Marchantia polymorpha), compete with crops for light and nutrients and harbor pests and diseases.

Filed Under: Growing Knowledge

New tool helps nursery growers fight pests

By Brittany Barker — Posted May 22, 2025

Research-backed ‘Pheno Forecasts’ help growers know when to expect pest activity and take action.

Filed Under: Growing Knowledge Tagged With: pests

Finding less-thirsty lawns

By Alec Kowalewski — Posted April 21, 2025

Study examines turf cultivars with improved drought tolerance, lower water requirements

Filed Under: Growing Knowledge Tagged With: turf

Prioritizing nursery pest challenges

By Jerry Weiland — Posted March 25, 2025

Nursery industry input is critical to helping IR-4 Project identify most pressing nursery challenges.

Filed Under: Growing Knowledge, Plant Pests and Diseases

New tools in the battle against thrips

By Man-yeon Choi — Posted February 24, 2025

New research shows a promising path to managing this agricultural pest

Filed Under: Growing Knowledge, Insects, Plant Pests and Diseases, Thrips

Growing Knowledge: Plant evaluation program looks at drought-tolerant groundcover shrubs

By Heather Stoven — Posted January 27, 2025

This trial combines some low-growing selections from previous evaluations as well as landscape industry standards and plants collected in France and England.

Filed Under: Growing Knowledge

Growing Knowledge: Focusing on silicon

By Jana Lee — Posted January 7, 2025

Researchers study using silicon-calcium supplementation on rhododendrons to reduce herbivores.

Filed Under: Growing Knowledge

Colored pots have benefits beyond branding

By Jake Shreckhise — Posted November 21, 2024

USDA research shows plant container color can prevent root damage from high temperatures

Filed Under: Growing Knowledge

Aiming for precision in pest control

By Lloyd Nackley — Posted September 26, 2024

Researchers evaluate trunk spray effectiveness of air-blast sprayers with sensors to target Pacific flatheaded borer

Filed Under: Growing Knowledge, Plant Pests and Diseases

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NURSERY NEWS

Bailey Nurseries removed dams to build environmental resilience

The new NurseryGuide.com powers up with new features

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

More Nursery News

From the pages of Digger

June: The Shrubs Issue

May 2026: the Sustainability Issue

April: The Tree Issue

March: The Perennials Issue

February: The Greenhouse Issue

More issues of Digger

Pests and Diseases

Managing Phytophthora: timing, temperature and emerging threats

Managing slugs and snails in Pacific Northwest nurseries

OAN leads grower-driven Japanese beetle solution

Prioritizing nursery pest challenges

New tools in the battle against thrips

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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