Daylilies forum: What are these bumps on dl buds?

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alilylady
Jul 18, 2015 6:52 AM CST
I have 2 dls that have these bumps on their buds. One plant has severely deformed flowers and immature buds that are turning brown and dropping. The second plant with these bumps has not had any buds turn brown and drop. Both plants, however, have had very short scapes. I have never had any problems in the 10+ years I've had daylilies. I have just planted and enjoyed their beauty.
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Name: Kathy Rinke
Brown City, MI
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Tree_climber
Jul 18, 2015 7:05 AM CST
Thrip damage.

Thrips are minute insects.
Kathy
Brown City, MI
zone 5

alilylady
Jul 18, 2015 7:13 AM CST
Thanks for your quick answer.
Is there something I can do to get rid of them and keep them from spreading to my other plants?
Do they survive over the winter? I'm in zone 5.
Name: Sabrina
Italy, Brescia (Zone 8b)
Love daylilies and making candles!
Daylilies Cat Lover Region: Europe Garden Photography Garden Ideas: Level 1
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cybersix
Jul 18, 2015 8:05 AM CST
I had the very first blooms on some DLs which bloomed for the first time this year doing that. First flowers were a bit odd but no damage. Didn't think about insects!
Sabrina, North Italy
My blog: http://hemerocallisblog.com
Name: Becky
Sebastian, Florida (Zone 10a)
Celebrating Gardening: 2015 Daylilies Hummingbirder Butterflies Seed Starter Container Gardener
Charter ATP Member I was one of the first 300 contributors to the plant database! Garden Ideas: Master Level Lover of wildlife (Black bear badge) Birds Ponds
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beckygardener
Jul 18, 2015 8:19 AM CST
Good to know. I have had the same bumps, but the flowers opened and looked fine to me. Could those bumps also be something else?
What lies behind us and what lies before us are tiny matters, compared to what lies within us.
Garden Rooms and Becky's Budget Garden

alilylady
Jul 18, 2015 10:20 AM CST
Yes, some of the flowers look okay, but not great, on one of the plants. The other one is pretty sad. Trying to find out what to do about this. Is it too late, or would it be better to do something now? Am a bit confused.
Name: Becky
Sebastian, Florida (Zone 10a)
Celebrating Gardening: 2015 Daylilies Hummingbirder Butterflies Seed Starter Container Gardener
Charter ATP Member I was one of the first 300 contributors to the plant database! Garden Ideas: Master Level Lover of wildlife (Black bear badge) Birds Ponds
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beckygardener
Jul 18, 2015 10:47 AM CST
Let's see if we can get the attention of some folks that might know ...

@sooby , @char , or @admmad please help us identify what the bumps are in this thread.
What lies behind us and what lies before us are tiny matters, compared to what lies within us.
Garden Rooms and Becky's Budget Garden
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
Jul 19, 2015 4:13 AM CST
Those "bud bumps" (aka enations) are very common but the cause has never been proven. Years ago an author, I forget the name and would have to look it up, attributed it to aphids but it cannot be aphids as the bumps happen where there are no aphids on daylilies in a garden.

Usually these days the bumps are attributed to thrips but, as I say, that's not been proven. Another possible suspect I see here is the tarnished plant bug, or it may be something else entirely that we haven't thought of. I don't think anyone has suspected any cause other than a pest of some kind, though. I keep meaning to try some exclusion method, like mesh bags, to try and narrow down the possibilities but never seem to remember in time - it would have to be put on a cultivar known to typically get the bumps, and very early in the development of the scape plus be very tight around the stem. I think the majority of daylilies in my garden have the bumps, will try and check that later when the thunderstorms have finished. Other than curiosity as to the cause, I don't worry about them.
Name: Kathy Rinke
Brown City, MI
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Tree_climber
Jul 19, 2015 6:32 AM CST

If it's thrips, I've had good luck planting Alyssum amongst the daylilies to reduce thrip damage.

Alyssum attracts pirate beetle - their favorite food? Thrips

Kathy
Brown City, MI
zone 5

alilylady
Jul 19, 2015 7:54 AM CST
thanks for the responses
when I deadheaded just now, I opened a bumpy bud and what did I see
a tiny bug that I believe is a thrip
dark color, maybe 1/16" long
daylilies are almost done blooming
should I do anything about these little buggers now or wait until spring
Name: Debra
Nashville, TN (Zone 7a)
Daylilies Cat Lover Butterflies Region: Tennessee Seed Starter
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shive1
Jul 19, 2015 8:22 AM CST
I have always associated those bumps with thrips. The daylily buds that have those bumps also have thrips 99 percent of the time in my garden.
Name: Becky
Sebastian, Florida (Zone 10a)
Celebrating Gardening: 2015 Daylilies Hummingbirder Butterflies Seed Starter Container Gardener
Charter ATP Member I was one of the first 300 contributors to the plant database! Garden Ideas: Master Level Lover of wildlife (Black bear badge) Birds Ponds
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beckygardener
Jul 19, 2015 10:23 AM CST
Kathy - THAT is VERY interesting about Alyssum. I hope that is true because in my seedling 3-tiered bed, the small top bed is where I planted alyssum! That would be awesome!!! Thank you for sharing that info. I guess I shall find out if that works! Smiling
What lies behind us and what lies before us are tiny matters, compared to what lies within us.
Garden Rooms and Becky's Budget Garden

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