Dahlias forum: Dahlia Tuber fungus/mold

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Name: Jennifer
48036 MI (Zone 6b)
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jvdubb
May 21, 2014 11:37 AM CST
Last fall for the first time I cut up my tubers after I dug them up, cleaned, and dried them. I did not dust them with anything when I stored them in saran wrap. All came out of storage looking great.

After I unwrapped them I put them in the garage for a week to see if they would start to sprout. All of them did except my prized tall red NOID. But what is worse most pieces are developing a fuzzy black/rust colored mold or fungus on the cut ends. I will be crushed if I lose this variety. I have no anti-fungal powder. But I remembered that I use cinnamon to prevent damping off in seedlings. So I thought, what the heck. I dusted these tubers with cinnamon figuring I'm going to lose them anyway if I don't do anything.

So, hopefully a few will sprout and the mold/fungus will go away. All I need is one or two to make it!
Name: Arlene
Southold, Long Island, NY (Zone 7a)
I was one of the first 300 contributors to the plant database! Tomato Heads Houseplants Garden Ideas: Level 1 Photo Contest Winner: 2014 Celebrating Gardening: 2015
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pirl
May 21, 2014 12:12 PM CST
That's a horror. I hope they make it through.
Name: Frank Richards
Clinton, Michigan

Garden Ideas: Master Level Celebrating Gardening: 2015 Plant Identifier
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frankrichards16
May 21, 2014 5:30 PM CST
No sprouts, just mold? You could wash them off and pot them until you are ready to plant outdoors.

Or, you could just wash them off with soap and water and wait.

I have not brought my tubers out of storage yet, but I expect most of them to have sprouts (I use the plastic wrap as well).

However, some varieties take a long time to bud and they usually bloom later in the season.
Name: Jennifer
48036 MI (Zone 6b)
Cottage Gardener Houseplants Spiders! Heucheras Frogs and Toads Dahlias
Hummingbirder Sedums Winter Sowing Peonies Region: Michigan Garden Ideas: Level 2
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jvdubb
May 21, 2014 6:54 PM CST
Yes Frank, no sprouts just mold
Name: virginiarose
Virginia
Money talks but Chocolate Sings!
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virginiarose
May 22, 2014 6:53 AM CST
Hopefully yours is just #3, check out the link.

http://www.dahlias.net/dahwebpg/Disease/Disease.htm
Susan

In the spring, at the end of the day, you should smell like dirt.....Margaret Atwood
Name: Peter
(Zone 9a)
The only scarce resource is time
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Cantillon
May 22, 2014 2:17 PM CST
It'll be fine, once you are into spring the tubers are too strong to be knocked over. I would wash them, dry them in the sun, pot them up. I believe sulphur is the anti fungal mostly recommended for the cut ends.
Name: Jennifer
48036 MI (Zone 6b)
Cottage Gardener Houseplants Spiders! Heucheras Frogs and Toads Dahlias
Hummingbirder Sedums Winter Sowing Peonies Region: Michigan Garden Ideas: Level 2
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jvdubb
May 22, 2014 2:38 PM CST
the cinnamon seems to be working. Just need them to sprout now
Name: Jennifer
48036 MI (Zone 6b)
Cottage Gardener Houseplants Spiders! Heucheras Frogs and Toads Dahlias
Hummingbirder Sedums Winter Sowing Peonies Region: Michigan Garden Ideas: Level 2
Image
jvdubb
Jun 5, 2014 9:21 AM CST
The tubers did sprout. Thank you Frank for the reminder to be patient. I forget all the varieties do not come on at once.

There were still a few spots that looked icky. But those were on old stem. I just cut those parts out and managed to only damage one eye (on the tuber! Not mine in my head Rolling on the floor laughing )

Do I need to let those cut parts dry and callous before I plant the tubers?

Anyway, I am relieved I will not be without my favorite dahlia this year!
Name: virginiarose
Virginia
Money talks but Chocolate Sings!
I was one of the first 300 contributors to the plant database! Garden Ideas: Level 1 Avid Green Pages Reviewer Hibiscus Dragonflies Daylilies
Bee Lover Dahlias Butterflies Hostas Birds Lilies
virginiarose
Jun 5, 2014 8:22 PM CST
Hurray! Hurray! Hurray!
Susan

In the spring, at the end of the day, you should smell like dirt.....Margaret Atwood

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