Tag: powdery mildew

Spring Greenhouse Disease Prevention | qPCR & Diagnostics Guide

Spring Conditions and Greenhouse Pathogens (Spring Greenhouse Guide) Spring greenhouse disease prevention is crucial for a successful growing season, especially as the days become sunnier. By mid-April, many Canadian greenhouse operations—especially in southern Ontario, British Columbia, and Quebec—have already cycled through winter propagation and are in full spring production of tomatoes, peppers, cucumbers, strawberries, and […]
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Figure 3. Powdery mildew on watermelon leaves, caused by Sphaerotheca fuliginea, Erysiphe cichoracearum. 

Pathogen Profile: Podosphaera xanthii

Written by: Becky Anderson Published by: David Santos What is Podosphaera xanthii? Podosphaera xanthii is a pathogenic fungus which causes “powdery mildew” on plants, especially cucurbits [1]. The naming of this fungus is not standardized, and you may also know it as Podosphaera fusca, Sphaerotheca fuliginea or Sphaerotheca fusca [1]. In addition to P. xanthii, powdery mildew […]
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