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Jul 10, 2021 9:08 AM CST
Name: Tienito
Rhode Island (Zone 6b)
Amaryllis Irises Native Plants and Wildflowers
Most of my Japanese irises are infected with some kind of fungus this year. I don't have any experience treating iris foliage that's affected like this, and don't know if it's hopeless at this point. Does anyone have any advice? I would appreciate it so much!

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Jul 10, 2021 11:48 AM CST
Name: Lucy
Hamilton, MA (Zone 6b)
irises
Charter ATP Member Cottage Gardener Irises Region: Northeast US Region: United Kingdom Region: United States of America
Enjoys or suffers cold winters
Sorry I don't grow JI, but I can see if an ISM member can suggest something.
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Jul 10, 2021 12:53 PM CST
(Zone 7a)
Garden Photography Hybridizer Irises Seed Starter Region: Tennessee
Just from what I see you should pull one and inspect it for bore holes that could be borer
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Jul 10, 2021 12:59 PM CST
Name: Tienito
Rhode Island (Zone 6b)
Amaryllis Irises Native Plants and Wildflowers
Lucy, thank you so much! Arilbred, I will try that and see. It looks like a surface fungal infection to me, but who knows.
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Jul 12, 2021 3:18 PM CST
Name: Lucy
Hamilton, MA (Zone 6b)
irises
Charter ATP Member Cottage Gardener Irises Region: Northeast US Region: United Kingdom Region: United States of America
Enjoys or suffers cold winters
Asked Matry & Jan at Joe Pye Weed garden. They say that they would need a photo so please post at their website jpflowers@aol.com & they will take a look. Jan says that Japanese usually don't get fungus.
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Jul 12, 2021 9:09 PM CST
Name: Tienito
Rhode Island (Zone 6b)
Amaryllis Irises Native Plants and Wildflowers
Lucy, thank you so much. I really appreciate that, and how kind of Marty & Jan to offer help. I will take some more close-ups and email them. Hopefully they will recover. Thank you again!
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Jul 13, 2021 5:24 AM CST
Name: Lucy
Hamilton, MA (Zone 6b)
irises
Charter ATP Member Cottage Gardener Irises Region: Northeast US Region: United Kingdom Region: United States of America
Enjoys or suffers cold winters
They of course know how irises react in New England, being a MA garden specializing in beardless iris. We are both members of ISM (Iris Society of MA).
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  • Started by: Tienito
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