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

A new day for crabapples

By Erica Browne Grivas — Posted March 18, 2022

This flowering tree is on the upswing, thanks to disease resistance and all-season beauty Crabapples have enjoyed a bumpy history. Originating in the mountains of Kazakhstan, crabapples’ spring flowers landed in Chinese palace gardens and were carried along the Silk Road to Europe.  Beyond their beauty, crabapples can act as a blanket pollinator for an […]

Filed Under: Plant Features, Rusts Tagged With: crabapples, Digger, Digger magazine, plant features, Trees, Wholesale Nurseries

Knowing your cedar pests (Part 2)

By Jay Pscheidt — Posted December 20, 2021

Part 2: Thuja, Juniperus and Cupressus It’s important to be aware of issues in the landscape and forest, as these can become problems in the nursery or for your customers. On the flip side, problems not detected in the nursery can become big issues when planted out at the customer’s end. Cedar trees have a […]

Filed Under: Beetles, Blights, Borers, Cankers, Growing Knowledge, Mites, Plant Diseases, Plant Pests and Diseases, Root Rots, Rusts Tagged With: Digger, Digger magazine, Growing Knowledge, Oregon State University, OSU, Pests and Diseases

Knowing your cedar pests

By Jay Pscheidt — Posted January 7, 2021

Grower awareness of problems can protect both grower and customer It’s important to be aware of issues in the landscape and forest, as they can become problems in the nursery or for your customers. Cedar trees have a number of pest and problems to be aware of, from abiotic disorders to insects and diseases. Some […]

Filed Under: Blights, Cankers, Growing Knowledge, Phytophthora, Plant Pests and Diseases, Root Rots, Rusts, Scales Tagged With: Digger, Digger magazine, Growing Knowledge, Oregon State University, OSU

Handier handbooks

By Jay Pscheidt — Posted May 1, 2017

Updated pest management handbooks are now
mobile-friendly and searchable online.

Filed Under: Blights, Cankers, Growing Knowledge, Insects, Plant Diseases, Plant Pests and Diseases, Rusts, Verticillium Root Rot, Weeds Tagged With: Digger, Digger magazine, Education, Home gardening, Landscaping, Oregon State University

Chrysanthemum white rust found in Connecticut

By Curt Kipp — Posted September 25, 2008

Puccinia horiana, also known as chrysanthemum white rust, was detected at six locations in two counties in Connecticut, the Litchfield County Times (Conn.) reported last week. Additionally, the parasite also was found in Michigan, according to a USDA bulletin. According to the USDA, “Chrysanthemum white rust may be recognized by the small white to yellow […]

Filed Under: Plant Diseases, Plant Pests and Diseases, Rusts Tagged With: Pests and Diseases

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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