Five organizations are collaborating on a boxwood health workshop for growers set for 8:30 a.m.–noon Thursday, October 20 at the North Willamette Research and Extension Center, 15210 N.E. Miley Road, Aurora, Oregon. Registration is now open and is limited to 40 people; those interested can sign up online. There is a $15 cost.
An integrated plan of attack against pests
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The Northwest Nursery Crop Research Center (part of the USDA- Agricultural Research Service, or USDA-ARS, Horticultural Crops Research Center) in Corvallis, Oregon recently funded the creation of the first Integrated Pest Management (IPM) Strategic Plan for Oregon’s ornamental nursery industry.
Green practices and silver bullets
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Integrated pest management, or IPM, has continued to improve and deliver benefits for growers While integrated pest management (IPM) has been an accepted best practice for growers since its introduction in the 1960s, it hasn’t always been growers’ first choice when looking for a fast, efficient answer to their crop dilemmas. The field of study […]
Getting the word out
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Growers take an interest in steering landscapers and end users to the right tree for the location No tree can grow best in the wrong place, and no location can be enhanced by the wrong tree. To that end, the flow of information between tree growers, and experts in the markets they serve, is critical […]
A new day for crabapples
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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 […]
Villains of the greenhouse II
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When seedlings fail, Fusarium damping-off or wilt could be another cause Part two of a series. Part one of Villains of the greenhouse, published in the April 2021 issue of Digger, covered Rhizoconia damping-off, root rot and stem rot. It can be viewed at www.diggermagazine.com/villains-of-the-greenhouse. There are many fungi that live and survive in the […]
Knowing your cedar pests (Part 2)
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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 […]
Know thy enemy
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Expert insect pest identification resources are available in Oregon The foundations of a good integrated pest management (IPM) plan are scouting, monitoring and identification — knowing where and when you have pests, and knowing exactly who those pests are. Scouting and monitoring techniques are straightforward. One can use tools like sticky cards, traps, bait plants, […]
Restoring a conifer classic
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Breeding disease-resistant Port Orford cedar for reforestation and the horticulture industry By Ryan Contreras and Richard Sniezko Port Orford cedar (Chamaecyparis lawsoniana) is a long-lived conifer native to northwestern California and southwestern Oregon. It spans an elevational range from sea level to 5,000 feet or more. In forestry, the tree has both economic and ecological […]
Call it ‘herbal distancing’
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Research shows that spacing out boxwood shrubs in production prevents the spread of infectious spores By Mana Ohkura, Lloyd Nackley, Carolyn Scagel and Jerry E. Weiland It’s been a year and a half since the COVID-19 pandemic started. We have been hearing how social distancing prevents the spread of the virus and we see signs […]
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