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Plant Viruses: Dead or Alive? Jay W. Pscheidt, Extension Plant Pathology Specialist, OSU At this writing, most of us are in the midst of stay at-home orders due to the SARS-CoV-2 virus pandemic. The world at large is learning more than they wanted to abou ...
Recognizing Sapsucker Damage on your Trees Kevin W. Zobrist, WSU Extension Forestry Educator A common cause of tree damage in backyards and small woodlands is from sapsuckers (Sphyrapicus spp.), which are a species of woodpecker. The Pacific Northwest has ...
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Disease Diagnosis and Management Someone who has a plant problem asks two questions: What is the problem, and how do I correct it? These are hard questions for beginners and experts alike. Diagnosis is the process of determining the cause of a problem. It ...
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Materials Allowed for Organic Disease Management Can I Use This Product on My Organic Farm? Nick Andrews, Small Farms Extension (OSU) 1 1 Reviewed by Brian Baker (Organic Materials Review Institute), John Stalley (Oregon Tilth, Inc.) and Katherine Withey ...
Risk Mitigation Measures for Soil Fumigant Pesticides Inga Zasada, Nematologist, USDA-ARS-HRCL, Corvallis, OR. Since 2009 there have been significant changes to fumigant product labels, which have resulted in changes to risk mitigation measures for the so ...
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Air Pollution (Ozone) Jay W. Pscheidt, Extension Plant Pathology Specialist, OSU There is great interest in air quality all over the Western United States when smoke from forest fires fills valleys during the summer. Most of the smoke problem is due to sm ...
Use of Disinfestants to Control Plant Pathogens Warren E. Copes, Research Plant Pathologist* *USDA ARS Thad Cochran Southern Horticultural Laboratory, Poplarville, MS, warren.copes@ars.usda.gov Mention of trade names or commercial products here is solely ...
Lawn and Turf-Nematode, Root-knot See: Wheat (Triticum aestivum)-Nematode, Root-knot ...
Acervulus (pl. Acervuli) A cushion-like, spore-producing body of a fungus erupting from host tissue usually below the cuticle or epidermis. ...
Actinomycetes Filamentous bacteria that produce several antibiotics and give soil its earthy smell. ...