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You are here: Home / Archives for Pests and Diseases

Farwest Show to offer pesticide recertification classes

By Curt Kipp — Posted August 10, 2018

The 2018 Farwest Show will offer six pesticide credit classes for attendees including one by Kelly Vance from 8:30–9:30 a.m., Wednesday, August 22, in Room B119. Vance, an IPM specialist with Beneficial Insectary, will conduct the class with credit for pesticide recertification. Spanish translation will be included. Vance’s presentation, ”Not All Mites Are Spider Mites: […]

Filed Under: Farwest Show Tagged With: Education, Farwest, Farwest Show, Pesticides, Pests and Diseases

Farwest Show speakers talk about woody breeding and boxwood blight

By Curt Kipp — Posted August 6, 2018

At the 2018 Farwest Show, seminar speakers Dr. Ryan Contreras of Oregon State University (OSU), and Jill Calabro of AmericanHort/Horticultural Research Institute (HRI), will deliver talks of particular interest to nursery growers, sharing insights on new breeding for woody plants and developments in the crisis of boxwood blight. Dr. Contreras’ seminar, “Moving, Shaking and Remaking: […]

Filed Under: Farwest Show Tagged With: AmericanHort, Farwest, Farwest Show, HRI, Oregon State University, Pests and Diseases, Trees, Wholesale Nurseries

Farwest Show speakers talk about organic trees and impact of gene crop spraying

By Curt Kipp — Posted July 6, 2018

At the 2018 Farwest Show, August 22-24, in Portland, Oregon, nursery growers will hear from two industry experts on topics with environmental implications. Steve Black of Raemelton Farm will speak about his experience as owner and operator of the first U.S. nursery to sell USDA Certified Organic trees. In a separate talk, Dr. Hannah Mathers […]

Filed Under: Farwest Show Tagged With: Farwest, Farwest Show, Organic, Pesticides, Pests and Diseases, speakers, Wholesale Nurseries

Ozone in the low zone

By Jay Pscheidt — Posted June 25, 2018

These oxygen molecules in the lower atmosphere, also known as smog, can damage growing plants During the summer, attention turns to air quality all over the western United States, as smoke from hot forest fires fills our valleys. Most of the smoke is made of small particulates that are not known to damage plants. At […]

Filed Under: Growing Knowledge Tagged With: Digger, Digger magazine, ozone, Pests and Diseases, Sustainability

Practical pesticide safety workshop for OAN nurseries

By Bill Goloski — Posted June 4, 2018

Join us for the grower-to-grower conversation about reducing pesticide exposure 8­­–9:15 a.m. Friday, June 15, at the OAN offices, 29751 SW Town Center Loop W. Wilsonville, Oregon. The Practical Solutions for Pesticide Safety Project (PSPS2) is gathering the firsthand knowledge from growers, operators, and employees who use handheld pesticide applicators and sharing their field-tested tactics […]

Filed Under: Nursery News Tagged With: Nursery News, OAN, OAN Members, Pesticides, Pests and Diseases

June 2018

By Bill Goloski — Posted May 31, 2018

Kym Pokorny shares with us the ways plant communities are an emerging concept in landscape design, plus other stories about olive tree trials for cold hardiness and the impending threat of the emerald ash borers to Oregon’s urban ecosystems. In this issue: Natural by design: The concept of designed plant communities combines the synergy of nature with […]

Filed Under: Issues Tagged With: Digger, Digger magazine, Issue, OAN, OAN Members, Pests and Diseases, Plants

The emerald ash borers are coming (eventually)!

By Sarah Greenleaf — Posted May 25, 2018

An impending threat to Oregon’s urban ecosystems If it’s not on your radar yet, it will be soon: The age of ash trees (Fraxinus, sp.) in the United States is winding down as the emerald ash borer (EAB) slowly follows a western route across the country, leaving a path of destruction in its wake. EAB […]

Filed Under: Growing Knowledge Tagged With: Oregon State University, Pests and Diseases, Trees

The continuing story of impatiens downy mildew

By Jill Calabro — Posted May 17, 2018

  The more we learn about impatiens downy mildew (IDM), the more intriguing and cunning this disease seems. It came to light in 2004 after widespread infections were reported in several states throughout the US but then receded from the spotlight for several years. Since 2011, IDM has been more consistently visible and frustratingly present […]

Filed Under: Nursery News Tagged With: Nursery News, Pests and Diseases

Wilbur-Ellis develops new precision spray agent Diligence-EA™

By Bill Goloski — Posted April 17, 2018

Wilbur-Ellis Company, an international marketer and distributor of agricultural products, has added a new adjuvant to its existing line of products. Diligence-EA™ with Accustrike™ Technology is a deposition aid and drift reduction agent for most fungicide, herbicide and insecticide ground-spray applications. Without a noticeable change in droplet size, the water-based adjuvant holds a uniform spray […]

Filed Under: Nursery News Tagged With: Pesticides, Pests and Diseases, Plants, Wholesale Nurseries, wps

Heroes and villains

By Jerry Weiland — Posted February 27, 2018

Research identifies harmful and beneficial microbes in nursery soil Four years ago, we received funding from the Floriculture and Nursery Research Initiative to study the interaction of soil-borne pathogens and environment on nursery plant health and disease control (Digger, July 2015). Since then, we have made significant progress in identifying the beneficial and pathogenic microbes […]

Filed Under: Growing Knowledge Tagged With: Digger, Digger magazine, Oregon State University, Pests and Diseases

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From the pages of Digger

April 2021 – The Greenhouse Issue

March 2020

February 2021

January 2021 – Nursery Country

December 2020

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