This year, we have recently been finding Armillaria root rot at an increased frequency on Arborvitae samples submitted to the Purdue University Plant and Pest Diagnostic Lab. This is a fungal disease, caused by fungi in the genera Armillaria or Desarmillaria. Desarmillaria is a more recent name given to two species of basidiomycetes (2018 and…Read more about Armillaria root rot[Read More]
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