We have concluded our 8th week of slug monitoring reports and are nearing the end of our weekly reports, as several of our counties are finishing monitoring. This week covers the monitoring period from June 8th to 14th. We had a total of 19 counties monitoring 143 shingle traps across Ohio. This week, only 7 counties reported finding slugs under their shingles, which is down from 11 last week (Figure 1). The statewide average also decreased to 0.3. Only 2 counties reported an average of 1.0 or higher, and those include Knox and Jefferson. Please keep in mind that each county is only monitoring 1-2 fields, so even if your county is reporting “no slugs”, slugs are very sporadic and may be absent from one field and present in another. Make sure you are scouting your fields and looking for evidence of slug feeding (damage to newly emerging plants and slime trails are things to look for). Slugs are nocturnal, and depending on when you scout, slugs may not be present in the field.
Slugs in Ohio
June 8th to June 14th, 2026 