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Jul 17, 2017 7:51 AM CST
|Once my coneflowers begin to bloom, something cuts the stem a few inches below the bloom, leaving the bloom hanging on the plant to die. I can't see what's doing the damage. I've sprayed pesticide prior to blooming with some success. Didn't want to harm the bees that visit after blooming. Any suggestions?|
Jul 17, 2017 11:51 AM CST
|Happens at my house too...
Reckon some kind of cutworm or something.... I find them all the time when practicing triage in the garden.... They usually fail the pressure test, or go to the chickens or drown in a bucket of water or something....
And... There's that critter that likes to chew a ring around stem ends on trees... Maybe related to the echinacea?
I grow enough echinacea that I'm not going to notice an occasional chewed bloom or two....
So... Maybe plant more seeds?
Maryland (Zone 7a)
Jul 18, 2017 5:55 AM CST
|My purple coneflowers seem pretty undamageable here. Sounds like a butterfly/moth caterpillar though. Try dusting the plants with some bT intended for broccoli.
Something like Safer's Soap sprayed along the stem might also help. Neither will harm the bees.
Jul 19, 2017 12:37 PM CST
|It sounds like the sunflower head-clipping weevil - see the pictures on this page:
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