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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

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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