Ask a Question forum: Strange problem with my Cosmos flowers

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Name: Joanna
North Central Massachusetts (N (Zone 5b)
Life & gardens: make them beautiful
Million Pollinator Garden Challenge Vermiculture
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joannakat
Jul 19, 2017 12:01 PM CST
Hi everyone,

Lately, several of my Cosmos have suffered a strange pinched-looking wilted area of the stem, about an inch or so below the base of the flowers, causing the flowers to completely droop--I find them just dangling there. This only happens to the fully bloomed flowers, not the buds, and never on the first day of blooming. The first time I noticed it was after a strong rain, and so I thought it was associated with that rain. But it's shown up a few times now in different weather situations, so I know that the rain had nothing to do with it.

It's really strange because although the stem is close to dead looking in that one area, the stem below is unharmed, and so is the flower above.

I'm sure I'm not explaining this well, but the following pictures will do the job. If anyone has any idea what this might be and how to deal with it, please do tell!

Thanking in advance.

Thumb of 2017-07-19/joannakat/434576 Thumb of 2017-07-19/joannakat/3f904d Thumb of 2017-07-19/joannakat/e419ad Thumb of 2017-07-19/joannakat/b1844e Thumb of 2017-07-19/joannakat/a5a490 Thumb of 2017-07-19/joannakat/32a16e

AKA Joey.
[Last edited by joannakat - Jul 19, 2017 12:03 PM (+)]
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Name: stone
near Macon Georgia (USA) (Zone 8a)
Plant Identifier Garden Sages Million Pollinator Garden Challenge
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stone
Jul 19, 2017 12:09 PM CST
Yup...
Happens to mine too...

I figure its a caterpillar or weevil or similar bug with piercing mouth parts.

Also see thread on echinacia.
The thread "purple coneflowers" in Ask a Question forum

As long it isn't happening to many, I'm not real concerned.

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