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 […]
Villains of the greenhouse
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When seedlings fail, Rhizoctonia damping-off, root and stem rot may be the cause There is so much hope for the future when we plant seeds, but that can be dashed when they don’t emerge, or when they fall over soon after popping out of the media. There are many fungi that live and survive in […]
Testing the waters
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How to test your irrigation system for the presence of Phythophthora By Neelam R. Redekar and Jennifer L. Parke Phytophthora is a fungus-like organism — called a water mold — that can infect a wide variety of nursery plant species. One of the ways it can spread is through irrigation water. Depending on size, a […]
Emerging threats to conifer foliage
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Growers and nurseries should be on the lookout for these diseases By Jared LeBoldus, Dave Shaw, and Paul Reeser Two new foliage diseases of Douglas fir and several other conifer species are emerging in Oregon, and they could be a threat to conifer growers and nurseries. The pathogens include Phytophthora pluvialis, the cause of Pytophthora […]