Siberian Vs American Elm

      In response to the discovery of a leafminer Stigmella multispicata, in an American elm tree. This leafminer had only been observed in Siberian elm's to this point in the US. I began researching if there are enough similarities to the two trees but have not found anything that is very useful. The American elm is a large tree that grows from 65 to 100 feet tall and has dark green leaves that are 3 to 7 inches long(https://www.ag.ndsu.edu/trees/handbook/th-3-113.pdf). The Siberian elm is a smaller tree that grows from 25 to 50 feet tall with leaves that are 3/4 to 3 inches long(https://www.inhs.illinois.edu/research/vmg/sibelm/) Both trees have similar bark texture and color. Both trees seem to be highly susceptible to disease and insect damage. Both species tolerate poor soils and road salt which makes them popular shade trees to plant along roadways. At this point with my limited knowledge I cannot find anything definite to link the two trees to this species of leafminer. Further research is necessary for this topic.