Hybrid elms and Asian beetle

Asked November 2, 2016, 3:49 PM EDT

I bought two hybrid elms about four years ago, they are covered with Asian beetles this fall, I thought these trees were resistant to bugs

Carver County Minnesota beetles elm trees horticulture

1 Response

I am not sure what you mean by "Asian beetles". This time of year we commonly see a lot of multicolored Asian lady beetles:
http://www.extension.umn.edu/garden/insects/find/multicolored-asian-lady-beetles/

If that's not what you mean, please write back. As far as I know, the multicolored Asian lady beetles will not harm your trees.

As for "resistance to bugs", I am not aware that new hybrid elms are resistant to insects. They have displayed some resistance to Dutch elm disease, which is a disease, not an insect:
http://www.extension.umn.edu/environment/agroforestry/elm-trees.html