What Happened to My Hollyhocks

Описание к видео What Happened to My Hollyhocks

#Hollyhockleaveslooklikelace #Hollyhockleafdisease #Hollyhock rust
Hollyhocks look like a disaster
Gary L. Heilig, Horticulture Educator (retired) for Michigan State University Extension discusses the most common fungal disease on Hollyhocks.
Including:
How to identify the disease
When to expect its appearance
None chemical culture practices to reduce disease
Conventional and organic management options

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