As a member of fungus gnats, the genus Bradysia can be the pests on many kind of agricultural crops, including mushroom farming. Feeding on healthy roots of crops, they can also spread root rot diseases. In Korea Bradysia difformis is known as major pest in greenhouse crops (carrot, cucumbers, garlic, melon, potatoes, radish, strawberries, sugarbeet, sweetpepper, sweetpotato, etc). Besides Bradysia difformis, we report six Bradysia species for the first time in Korea.

• Seungkwan Shin(Entomology Program, Department of Agricultural Biotechnology, Seoul National University)
• Heungsik Lee(Central Post-Entry Quarantine station, National Plant Quarantine Service)
• Seunghwan Lee(Central Post-Entry Quarantine station, National Plant Quarantine Service)