KC Gardens

Beetles on mums


I was checking out the flower border and noticed that nearly every blossom on my white chrysanthesum was hosting a copulating pair of some kind of beetle. It was shaped like a firefly but had some kind of yellowish tan upper wing. There were also some on the yellow blossoms as well as several cucumber beetles. But the rust mums and the autumn joy sedum blossoms seem best free. Any idea what. Should I be trying to get the sprayer working? Internet search didn’t turn up a picture that looked like my bug. - Paula -


  1. 1 year, 6 months ago

    These are probably blister beetles as they like to nibble on the tender petals. Blister beetles like their name can cause a painful bite so be careful and not try to handle. Because they are an adult beetle they are difficult to control. This late in the season I would probably just let them run their course.

    Dennis - Johnson County Extension

  2. 1 year, 6 months ago

    I think you might be seeing boxelder bugs. They don’t cause damage but can be a nuisance trying to come into the house. They could also be soldier beetles. Like the boxelder, they don’t harm plants but will be laying eggs. Clean up the plants as much as possible. The cucumber beeltes will eat blossoms and can be sprayed with Carbaryl. Jane

  3. 1 year, 6 months ago

    Soldier beetles, good thought and these are good guys. Probably not box elder bugs. Dennis

  4. 1 year, 6 months ago

    I think soldier beetles is the right guess. I’m sure they are not boxelder. Nonetheless, the white mum blossoms turned brown and ugly fast. This happened last year as well. Maybe I’ll just dig them out as they don’t remain attractive for long.

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