Daylilies forum: What do you think?

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Name: Sheridragonfly/Sheri
Alabama (Zone 8b)
Salvias Celebrating Gardening: 2015
Image
Sheridragonfly
Aug 13, 2019 2:29 PM CST
I have had the worst year this year for my daylilys in the 15 years I have
grown them in 2 flower beds.

The reason crossed my mind this summer and I want your opinions that grow
daylilys or perennials.

I had some 10 10 10 granular that worked GREAT for all perennials and the daylilys that I applied March lst one tablespoon around each plant.
I never fertilize plants later than March lst due to the intense heat
here...even though many are in afternoon shade..

So I got my fertilizer out of the bag stored in the barn that it came in
left over from last year when I fertilized this year on March lst.

I think that fertilizer went through a heat in the outside barn that is a large metal building under trees...and that it burnt my daylilys and other perennials this year...

The size of the daylilys is one fourth of what they have been in past years.
They have had plenty of hand watering from me this year...
I almost have lost about 6 of them due to if it was the older fertilizer.

between that and the rust they sure did not perform well this year

I did get some folicur and spray then 5 times and need to spray them
again this week..I cut the rust leaves or fans off last month then sprayed
with folicur...it did help a lot...it worked using the folicur ...

Any thoughts?
Do you think they can come out of it during this winter and do well next April
and May?

Sheri /sheridragonfly zone 8
Alabama

(Zone 6a)
Frillylily
Aug 13, 2019 10:26 PM CST
do you have photos of the 6 plants that look like they are dying, (Wondering if they have pulled themselves down too far below the soil line and now have dirt over their crowns?) and also do your clumps need divided? When clumps get super large, the bloom size is compromised.
Name: Larry
Enterprise, Al. 36330 (Zone 8b)
Composter Daylilies Garden Photography Million Pollinator Garden Challenge Garden Ideas: Master Level Plant Identifier
Celebrating Gardening: 2015 Region: Alabama
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Seedfork
Aug 14, 2019 5:55 AM CST
Here is a short article about the storage of fertilizer.
https://www.turfcaresupply.com...
In your area the humidity is normally very high so it would be best to keep the fertilizer in a sealed container.
But, I don't think how the fertilizer was stored caused your problems. I do know rust on daylilies was a bigger problem for most of the garden club members this year. I am not familiar with Folicur. I suspect that is something used on peanuts, and I don't have any idea what the applicable rate would be for daylilies. Could that have actually have been what caused the problem?
Name: Sue
Ontario, Canada (Zone 4a)
Daylilies Birds Enjoys or suffers cold winters Native Plants and Wildflowers Butterflies Annuals
Region: Canadian Keeps Horses Dog Lover Plant Identifier Garden Sages
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sooby
Aug 14, 2019 6:56 AM CST
Folicur appears to have the active ingredient tebuconazole, which has been tested for daylily rust. I do not know if Folicur in the USA is labeled appropriately for daylily rust (when I do searches I always get switched to the Canadian versions of things):

"Single application costs ranged from $10.21 to $95.96 with tebuconazole providing excellent disease management at a relatively low cost per application ($13.90)."

From: https://apsjournals.apsnet.org...

Management of Daylily Rust With Different Fungicides and Fungicide Combinations, Emmitt and Buck.

I suspect the problem is either rust or heat or something else. A tablespoon of fertilizer per plant doesn't sound like much.
Name: Larry
Enterprise, Al. 36330 (Zone 8b)
Composter Daylilies Garden Photography Million Pollinator Garden Challenge Garden Ideas: Master Level Plant Identifier
Celebrating Gardening: 2015 Region: Alabama
Image
Seedfork
Aug 14, 2019 8:21 AM CST
Sooby, will you explain what this means:
"Single application costs ranged from $10.21 to $95.96 with tebuconazole providing excellent disease management at a relatively low cost per application ($13.90)."
If that means the cost of treating one plant is $13.90 I would not consider that even close to "relatively low cost".
(Zone 6a)
Frillylily
Aug 14, 2019 8:43 AM CST
I have some plants that have pulled themselves down into the soil and are dying. I need to lift them up, I have a handful that do this every year. I suspect that may be going on here, but without photos we can't see what is happening.
Name: Sue
Ontario, Canada (Zone 4a)
Daylilies Birds Enjoys or suffers cold winters Native Plants and Wildflowers Butterflies Annuals
Region: Canadian Keeps Horses Dog Lover Plant Identifier Garden Sages
Image
sooby
Aug 14, 2019 2:39 PM CST
Seedfork said:Sooby, will you explain what this means:
"Single application costs ranged from $10.21 to $95.96 with tebuconazole providing excellent disease management at a relatively low cost per application ($13.90)."
If that means the cost of treating one plant is $13.90 I would not consider that even close to "relatively low cost".


They calculated the cost of treatment for different fungicides and fungicide combinations - from the link I gave above:

"Production nurseries and daylily hybridizers in the southeast United States rely on the use of fungicides to manage daylily rust, caused by the fungus Puccinia hemerocallidis. Foliar sprays of pyraclostrobin, flutolanil, tebuconazole, myclobutanil, chlorothalonil, mancozeb, pyraclostrobin + boscalid, flutolanil + tebuconazole, flutolanil + myclobutanil, flutolanil + chlorothalonil, and flutolanil + mancozeb applied on 14-day intervals, and a nontreated control, were evaluated under high disease pressure at three locations in Griffin, GA, in 2015. Tebuconazole or the tebuconazole + flutolanil treatment consistently had the lowest area under the disease progress curve (AUDPC) of the treatments. The addition of flutolanil to chlorothalonil or mancozeb did not improve rust control and no difference in disease severity was observed in any treatment containing contact fungicides on all assessment dates. Single application costs ranged from $10.21 to $95.96 with tebuconazole providing excellent disease management at a relatively low cost per application ($13.90)."

Lower cost is not saving anything if a fungicide is not as effective.
Name: Larry
Enterprise, Al. 36330 (Zone 8b)
Composter Daylilies Garden Photography Million Pollinator Garden Challenge Garden Ideas: Master Level Plant Identifier
Celebrating Gardening: 2015 Region: Alabama
Image
Seedfork
Aug 14, 2019 2:44 PM CST
So that is the cost of a single treatment of 144 plants...that sounds much better.
Name: Sheridragonfly/Sheri
Alabama (Zone 8b)
Salvias Celebrating Gardening: 2015
Image
Sheridragonfly
Aug 17, 2019 3:38 PM CST
Hi
the folicur worked better than others I have tried...
Yes its used on peanuts but worked on my daylilys
this summer..

The plants are not drawn down in the soil
they are sitting just right at soil level.

Do not need dividing..

so from what you all say it was the rust?
if you say it was not the granular 10 10 10
that I thought might have hurt them as it was
not sealed tight and had turned brown over
a hot summer and winter in the barn in its bag.

Sheridragonfly

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