Red spot (Measles) of Peony
Print
EmailPathogen: Cladosporium paeoniae
Hosts: Paeonia
Symptoms: Initial symptoms typically develop after bloom. Small reddish circular spots form on the foliage, lesions may coalesce making blotchy patches. The upper surfaces of infected leaves become a dark purple color, while the lower surface is brown. Foliage that is infected before it is fully expanded may become slightly distorted. Infection of stems causes reddish streaks.
Spread: This fungus survives on dead plant debris and in soil. Spores are spread by rain or wind.
Management: Remove and destroy infected plant material. Avoid overhead irrigation or carefully time irrigation such that the duration of leaf wetness is minimized.
Other Documents in this Series
You Might Also Be Interested In
-
MSU research team receives USDA grant to evaluate effectiveness, cost of new blueberry pest management strategies
Published on February 19, 2021
-
MSU named Top 10 agriculture and forestry college in new report
Published on March 23, 2021
-
MSU researcher awarded five-year, $2.5 million grant to develop risk assessment training program
Published on October 13, 2020
-
MSU Product Center helps Michigan food entrepreneurs survive and thrive throughout pandemic
Published on August 31, 2021
-
Protecting Michigan’s environment and wildlife through the Conservation Reserve Enhancement Program
Published on September 1, 2021
-
MSU Extension to undertake three-year, $7 million vaccination education effort
Published on August 17, 2021
Accessibility Questions:
For questions about accessibility and/or if you need additional accommodations for a specific document, please send an email to ANR Communications & Marketing at anrcommunications@anr.msu.edu.