Scouting rust diseases
Editor’s note: This article is from the archives of the MSU Crop Advisory Team Alerts. Check the label of any pesticide referenced to ensure your use is included.
Hosts include: Aconitum, Anemone, Aquilegia, Arisaema, Aster, Campanula, Hemerocallis, Heuchera, Liatris, Lupinus and Monarda.
Several perennials are commonly affected by rust diseases. Each rust pathogen has its own relatively small host range. Disease management strategies are fairly similar for this group of pathogens.
Raised reddish orange pustules
on propagated Arisaema.
Rust lesions on Heuchera.
The lesions may drop out
of the leaf, creating a shot
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