While blueberries grow well in the Pacific Northwest, five major viruses afflict plants in this region. Learn what you need to know to prevent and manage viral disease in your blueberry plants. The most important step? Use certified virus-tested planting stock.
Gray mold outbreaks on hemp caused the fungus Botrytis cinerea can spread easily and quickly kill plants. Here's how hemp growers can create conditions that will keep gray mold at bay.
Cynthia M. Ocamb |
Sep 2022 |
Article
Photo Credit: Alicja Neumiler - Adobe Stock (Cropped from original)
A collection of articles for growing vegetables in Central Oregon. Include general information, recommendations, soil temperatures, rhubarb, potatoes, cucumbers, beets, carrots, radishes, onions, tomatoes and tomatillos.
This collection of links and publications are compiled information about managing nutrient levels in your pasture. This includes soil testing and assessment, application of fertilizers and minerals, and nutrient cycling in a forage pasture.
May 2017 |
Collection
Illustration by Eiko Goto. (Cropped from original)
In Japan, Kuno stone wall strawberries were at the forefront of the movement to promote local specialty crops. Learn about how strawberry production grew and changed through the past century.
Dr. Toshihiko Nishio, Alice Formiga (editor and translator), Shinji Kawai (translator and editor) |
Mar 2019 |
Article
The Oregon State University Soil Fertility Program has completed a formal evaluation of the Sikora buffer to replace the SMP buffer for estimating lime requirement in Oregon. Twenty-four acidic soils from Oregon were tested for actual lime requirement using a lab incubation of lime and soils. The actual amount of lime needed to reach pH targets of 5.6, 6.0, and 6.4 was highly correlated to the SMP buffer (r2 = 0.91-0.93) and the Sikora buffer pH (r2 = 0.91-0.93). These correlations are the basis for new updated lime recommendations for both Sikora and SMP buffer pH methods (Table 1) and will be used to update OSU extension guides containing lime recommendations. The new SMP recommendations are included for the time being for the remaining labs still using the SMP method, but may be phased out over time as more labs switch to Sikora. We thank the Oregon Tall Fescue Commission for providing the necessary support to complete this project.
Q: Once or twice a summer I treat my lawn with weed & feed and spray on weed killer for lawns. Is it safe to use compost made from the lawn clippings? How long should I reasonably wait to use clippings for compost, and is it safe to use the compost in my veggie garden the following summer?
Q: I'm composting on site and wondering how concerned I should be about adding the grass clippings. Is there a weed killer that I could use that is safe to compost for a food garden? I’ve been looking into a vinegar/dish soap mix.
Diseases can reduce the yield and nutritional quality of crops. Vectors are organisms that transmit pathogens that cause diseases and can also threaten crops. Some important vectors of plant pathogens in the Pacific Northwest ...
Silvia I. Rondon, Mary Corp, Stephen M. Van Vleet, Stuart Reitz, Pamela Hutchinson |
Jul 2015 |
VideoPeer reviewed (Gray level)
Q: We have some large laurels with holes and discoloration on the leaves and wondering what is causing it and how to treat it. We don't see anything on the bottom side of leaves. We'd appreciate your opinion and advice.