Research on plant hydraulics helps explain the effect of drought stress on shade trees By Sadie Keller, Rebecca Sheridan, Scout Dahms-May, Carolyn Scagel and Lloyd Nackley In Oregon’s Willamette Valley, the heart of the nursery industry, rainfall is scarce during the summer and humidity is low. The plant stress resulting from the low soil moisture, […]
The tribulations of big trees
By — Posted
Growing bigger trees that will flourish in a changing climate takes a long-game approach For decades, tree-lined streets across the country — largely in the Southeast — would erupt in the bright white blossoms of Callery pear trees (Pyrus calleryana) every spring. Affordable, fast-growing and easily shipped, the trees had become the darlings of landscapers, […]
Boxing out boxwood blight
By — Posted
Growers must work vigilantly to keep the fungus that causes boxwood blight out of their nurseries Boxwood is one of the most popular landscaping plants around. It’s evergreen and pretty, it provides natural privacy, it’s easy to maintain and it can be shaped into attractive ornamental topiaries. In fact, so popular is boxwood that it’s […]
Don’t get burned by charcoal rot
By — Posted
Soilborne fungus can afflict hebes and a wide range of other host plants Hebes (pronounced heebees) are an interesting group of evergreen shrubs, mainly from New Zealand, although there are also a few from South America and French Polynesia. Botanically, they are now placed in the genus Veronica, but many will know them by their […]
The fight against flatheaded borers
By — Posted
Oregon State University researchers from the Nackley (nursery) and Wiman (orchards) programs have teamed up with scientists from across the country to study the biology and management of flatheaded borers. Flatheaded borers are beetles, from the order Coleoptera and the Buprestidae family, that can be devastating pests of ornamental trees grown in nurseries, transplanted landscape trees, trees grown for wood or other products, and fruit and nut crops.
Space limited for boxwood blight workshop on October 20
By — Posted
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
By — Posted
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
By — Posted
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
By — Posted
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
By — Posted
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 […]
- « Previous Page
- 1
- 2
- 3
- 4
- 5
- …
- 10
- Next Page »