OHIO – The first spotted lanternfly population (eggs+nymphs+adults) in Ohio was detected in Mingo Junction, Jefferson County on October 27, 2020. Since then, multiple populations have been detected in three other counties. See the map for the known infestation timeline. Note that numbered locations of detection on map are not geographically accurate.
NATIONALLY – Here is the latest SLF population detection map as of March 28, 2022, courtesy of NYSIPM (https://nysipm.cornell.edu/). Note that Belmont and Muskingham Counties have not been added yet.