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 […]
The emerald ash borers are coming (eventually)!
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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 […]
The continuing story of impatiens downy mildew
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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 […]
Wilbur-Ellis develops new precision spray agent Diligence-EA™
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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 […]
Heroes and villains
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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 […]
Stink bugs dining at nurseries
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By Victoria Skillman and Jana Lee You probably have seen the brown marmorated stink bug (BMSB for short) coming into your home or shed to find shelter from the winter cold. This pest arrived in the United States in 1996 and is now in 43 states. BMSB was first detected in Oregon in 2004 and […]
Japanese Beetle eradication program to expand in 2018
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The Oregon Department of Agriculture has completed year one of a proposed five-year eradication program for Japanese beetles (Popillia japonica), a nursery and garden pest that feeds on turf as well as more than 300 plant species. The beetles were found in the Cedar Mill area west of Portland in 2016. This past summer, the […]
Fighting the resistance
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Weeds can become herbicide-resistant, but there are strategies to counteract it Evidently we hate weeds. The US Environmental Protection Agency (EPA) reports that expenditures on herbicides consistently accounted for the largest portion of total world pesticide expenditures at approximately 45 percent, followed by insecticides, fungicides, and other pesticides. Amazingly, in 2012, U.S. expenditures accounted for […]
A game changer
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As a leader and innovator in plant production, Oregon’s nursery and greenhouse industry has an equal responsibility to make a difference on the environmental side of the coin. We frequently remind our members of Congress and the Oregon Legislature that the industry sends ecologically friendly green products out of the state, bringing traded sector dollars […]
The sudden oak death epidemic in Oregon
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Oregon nurseries are increasingly threatened by the repeated expansion of the sudden oak death (SOD) epidemic in Curry County. Although this epidemic is geographically far away from the main nursery production areas, the continued expansion of the SOD quarantine area and the newly discovered introduced EU1 clone are distinct threats to the nursery industry. What […]
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