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OMAFRA: Phytophthora root rot in soybeans


October 26, 2021
By Top Crop Manager

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Phytophthora root rot (PRR) is one of the most destructive soybean diseases in Ontario, according to Ontario Ministry of Agriculture, Food and Rural Affairs (OMAFRA) soybean specialist Horst Bohner and  OMAFRA field crop pathologist Albert Tenuta. PRR thrives in wet, poorly drained soils, which were prevalent in many parts of Ontario this past summer due to excessive rain.

Stem canker, white mould and Pythium root rot all share symptoms with PRR that can lead to misdiagnosis, so careful examination of visible symptoms and sending tissue samples to disease testing centres like the University of Guelph Pest Diagnostic Clinic are the best bet for correctly determining and managing this disease. |READ MORE

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