Potato tuber moth (PTM) is damaging pest of solanaceous crop invasive to Korea. We showed earlier that it inflicteddamage to tomato. So in this study, we evaluated accessions of Solanum lycopersicum (Money maker, Campari, AilsaCraig, LA3475 and e6203) and a wild variety of S. pimpinellifolium for resistance variability. A day old larvae of PTMwere inoculated to leaves and fruits. The result showed high survivability on leaves of Ailsa Craig (95.6%±4.4 SE) andlow on fruits of S. pimpinellifolium (14.0%±6.0). Leaves of LA3475 and fruits of S. pimpinellifolium were less preferred.Volatile compounds could be the cause. Density of trichomes could also influence PTM activity on leaves. These resultsgive us information on resistance variability which could be utilized if there is a host shift due to climate change.

• Sunil Aryal(Department of Bioresource Sciences, Graduate School, Andong National University, Korea)
• Aman Dekebo(Department of Bioresource Sciences, Graduate School, Andong National University, Korea)
• Chuleui Jung(Department of Bioresource Sciences, Graduate School, Andong National University, Korea)