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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.

Managing Phytophthora: timing, temperature and emerging threats

By Alan Peper — Posted May 20, 2026

Phytophthora root rot is a persistent and economically significant issue in the ornamental nursery industry.

Filed Under: Growing Knowledge, Plant Pests and Diseases Tagged With: Phytophthora

Managing slugs and snails in Pacific Northwest nurseries

By Rory McDonnell — Posted April 22, 2026

and Robin RosettaThe collective scientific name for slugs and snails, Gastropoda, goes a long way towards explaining the headaches that these invertebrates cause nurseries owners throughout the Pacific Northwest. Literally meaning ‘stomach foot’ from the Greek words ‘gastér’ and ‘podòs’, gastropods feed on a large number of ornamental plants. They are also thought to transmit […]

Filed Under: Growing Knowledge, Plant Pests and Diseases Tagged With: pests and dieases, Slugs

 Managing powdery mildew with biological fungicides

By Brent Warneke — Posted March 24, 2026

Interest in natural treatment methods is being driven by concerns over resistance
and the desire for reduced-risk pest management.

Filed Under: Growing Knowledge

OSU’s study of native plants gives insights into preferences of gardeners and pollinators

By Jen Hayes — Posted February 24, 2026

and Gail Langellotto Native plants have greatly increased in popularity among gardeners over the past several years, in part due to these plants’ purported value to bees and other pollinators. However, many native plants are difficult to grow and finish at scale in modern nursery production systems. Also, some native plants are viewed as too […]

Filed Under: Growing Knowledge

Oregon nurseries light the way for houseplants

By Lloyd Nackley — Posted January 23, 2026

Winter production in Oregon has a familiar dark side: month after month where sunshine is in short supply.

Filed Under: Growing Knowledge

With trees, size matters

By Lloyd Nackley — Posted January 6, 2026

Measuring tree growth from Ticknor to today

Filed Under: Growing Knowledge

Adaptable, not just marketable

By Lloyd Nackley — Posted November 24, 2025

Public interest surges in climate-ready plants, but what does that mean?

Filed Under: Growing Knowledge

The 2025 IPPS Western Region meeting in Canada offered growers many chances to connect and learn

By Lloyd Nackley — Posted October 21, 2025

From cutting-edge technology in tissue culture labs to sprawling nursery production facilities, the conference showcased both innovation and scale

Filed Under: Growing Knowledge

Rethinking substrates for modern growing

By Lloyd Nackley — Posted September 26, 2025

How layering mixes, wood fiber, and filling practices can cut peat use without cutting crop quality

Filed Under: Growing Knowledge Tagged With: Peat, Soil and substrates

How a unique research collaboration is shaping the future of nursery production

By Lloyd Nackley — Posted September 9, 2025

In the nursery industry, challenges are nothing new, but in recent years, the stakes have risen higher.

Filed Under: Growing Knowledge

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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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