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Old 06-16-2018, 05:12 PM
 
585 posts, read 224,289 times
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I have rust in my peonies, and and applied Sulfur Guard, but nothing has happened. Does anyone here know something better? Greatly appreciated.....Thank you,
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Old 06-16-2018, 09:41 PM
Status: "You meet the nicest people on CD..." (set 19 days ago)
 
Location: Out there somewhere...
38,050 posts, read 43,506,530 times
Reputation: 104067
Fungicides approved for peonies include captan, copper sulphate (try Lilly Miller Micro-Cop), Daconil (chlorothalonil), Mancozeb, Maneb, Bravo or professional fungicides such as Decree, Chipco 26019 or Cleary's 3336 (thiophanate methyl). A new systemic fungicide is TM85 and another is offered by Cleary's.

These web sites should help you...
Brown Leaves on a Peony | Home Guides | SF Gate

Peonies need... - A&D Nursery
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Old 06-19-2018, 11:52 PM
 
Location: Mid-Atlantic
21,654 posts, read 20,687,058 times
Reputation: 26408
This thread caused me to remember that... Rust Never Sleeps.
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Old 06-20-2018, 08:52 AM
 
Location: South Carolina
12,649 posts, read 16,995,411 times
Reputation: 21183
I use daconil on all my flowers from roses to zinnias and on my tomatoes should they need it .
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