Spotted beetles

Asked August 20, 2018, 3:48 PM EDT

I have spotted beetles, very small, on my Columbine seed pods. What are they, are they good or bad, and should I be concerned enough to use pesticides?

Marquette County Michigan

1 Response


My references do not indicate there is any particular pest of columbine that feeds on seeds. Unless you are trying to save seeds of this plant, it shouldn’t be a problem for the plant. Some common spotted beetles are spotted cucumber beetle, Asian lady beetle and Dermestid beetles.

You have a couple options to get the insects identified. Take clear pictures of 3-4 insects on a plain white piece of paper with something like a coin or pencil in the shot so we can get an idea of size, and attach to this question.

Or capture about 10-12 insects and submit to MSU Pestid lab for identification. Insects must be whole and undamaged.

To preserve and protect fragile specimens, it’s always best to submit insects in a small leak proof vial filled with vinegar. Place the vial in a small zip-lock baggie, then in a small box or mailing tube and mail to:

Diagnostic Services

578 Wilson Rd.

East Lansing MI 48824-6469

Be sure to include a note with your contact information including your email address.

You can download one of our submittal forms here:

Here is the website for the lab:

Thank you.