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You are here: Home / Archives for Plant Pests and Diseases / Plant Diseases

$250,000 shifted to P. austrocedri research

By Curt Kipp — Posted September 19, 2024

Officials have quickly reprioritized $250,000 in federal horticulture research funds to immediately begin developing and implementing effective strategies to prevent the spread of Phytophthora austrocedri and minimize its impact on the horticultural industry. P. austrocedri is a destructive pathogen threatening valuable ornamental crops including cypress, arborvitae, juniper, and cedar, which could have serious consequences for nurseries, landscapes, […]

Filed Under: Nursery News, Nursery Operations, Phytophthora, Plant Diseases, Plant Pests and Diseases

New boxwood varieties shore up defense against spreading boxwood blight

By Mitch Lies — Posted September 10, 2024

As boxwood blight was spreading in the U.S. in the 2010s, executives at Plant Development Services in Loxley, Alabama, and Saunders Brothers Nursery in Piney River, Virginia, were looking for solutions. Plant Development Services looked to Europe, where blight had been a major issue since 1998, while Saunders Brothers looked to germplasm it had on […]

Filed Under: Blights, Boxwood Blight, Plant Features, Plant Pests and Diseases

New Phytophthora pathogen — not P. ramorum — found on two nurseries

By Curt Kipp — Posted August 28, 2024

A soilborne plant pathogen not previously seen in the United States — Phytophthora austrocedri — has been detected at two Oregon nurseries and has infested an unknown number of plants. The detections have prompted an aggressive quarantine of some of the plant material on both operations as growers and authorities strive to identify infested areas and contain the pathogen’s […]

Filed Under: Nursery News, Phytophthora, Plant Pests and Diseases Tagged With: pathogens, Pests and Diseases, Plants, Wholesale Nurseries

Highlights from the 2024 Oregon Nursery Science Summit

By Lloyd Nackley — Posted July 29, 2024

Participants get update on research, insect and pest management and plant selection and production

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

Farwest seminars cover a range of topics

By Vic Panichkul — Posted June 24, 2024

There’s a little something to pique everyone’s interest this year at the 2024 Farwest Show in Portland, Oregon, August 21-23, as far as seminar topics go. “We’ve lined up a wide cross-section of speakers to reflect our member’s specialties and interest,” said Director of Events Allan Neimi. “Attendees will find sessions to help them run […]

Filed Under: Blights, Boxwood Blight, Farwest Show, Plant Diseases, Plant Pests and Diseases

New tools to forecast boxwood blight infection risk in Pacific Northwest nurseries

By Brittany Barker — Posted May 28, 2024

The protection of boxwood in Oregon depends on precise timing of surveillance, monitoring, and management of boxwood blight infections.

Filed Under: Blights, Boxwood Blight, Growing Knowledge, Plant Diseases, Plant Pests and Diseases Tagged With: boxwood blight

Program equips growers with knowledge to prevent and diagnose nursery crop diseases

By Luisa Santamaria — Posted November 29, 2023

Our mission is to provide nurseries and their teams with the information and resources they need to protect and improve plant health.

Filed Under: Blights, Boxwood Blight, Growing Knowledge, Phytophthora, Plant Diseases, Plant Pests and Diseases Tagged With: Education, Plants, Wholesale Nurseries

Progress towards effective Phytophthora root rot control

By Jerry Weiland — Posted October 31, 2023

OSU research shows different approaches required for management of common rhododendron disease.

Filed Under: Cankers, Growing Knowledge, Phytophthora, Plant Diseases, Plant Pests and Diseases, Root Rots

The genetic revolution comes home

By Melodie Putnam — Posted September 5, 2023

Researchers seek new ways to make use of whole genome sequencing in plant production.

Filed Under: Blights, Growing Knowledge, Plant Diseases, Plant Pests and Diseases Tagged With: Plants, Research

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

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NURSERY NEWS

In Memoriam: Melvin John Steffenson

New USDA Census of Hort arriving in mailboxes this month

Oregon Association of Nurseries honors the industry’s best at 2024 Convention

Eason Horticultural Resources is now employee-owned

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

Building trust is key to establishing clientele base for new nurseries

Five owners share their experiences on what it takes to start a nursery businesses

Bailey hires new CFO and chief HR officer

More Nursery News

From the pages of Digger

May 2025: Sustainability Issue

April 2025: The Tree Issue

March 2025: The Perennial Issue

February 2025: The Greenhouse Issue

January 2025: The Retail Issue

More issues of Digger

Pests and Diseases

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

$250,000 shifted to P. austrocedri research

More articles

FARWEST SHOW UPDATES

Sense of excitement prevailed at Farwest as nursery industry ‘Meets the Future’ 

Farwest Show attendees select favorites for the Retailers’ Choice Awards

Starway to Heaven™ Japanese Snowbell wins People’s Choice balloting at Farwest Show New Varieties Showcase

Hopper Bros. wins Best in Show booth award at 2024 Farwest Show   

Starway to Heaven™ Japanese Snowbell wins Judges’ Best in Show at Farwest Show New Varieties Showcase

More Updates from Farwest

The Value of Membership

Meet the leader: Sam Pohlschneider

OAN honors the industry’s best

Oregon Association of Nurseries honors the industry’s best at 2024 Convention

More member stories

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