As indigenous aphid parasitoid, Aphelinus varipes kill aphids for feeding in addition to parasitization. Because of this characteristic of A. varipes, this parasitoid may have the possibility of biological control agent against aphids. So we have evaluated traits such as daily paratization, total parasization, number of aphids killed by host feeding, sex ratio, development time, pupal mortality of A. varipes parasitizing green peach aphid, Myzus persicae. At 25°C and 16L:8D, longevity, total paratization and host feeding of A. varipes female was 11.0, 25.3, and 63.3 days, respectively. And development time of male and female, sex ratio (M:F), pupa mortality of offspring of A. varipes were 12.0 days, 12.5 days, 0.88, and 11.6%, respectively. However, because these results are not enough to estimate potential of A. varipes as biological control agents/factors, other factors such as host suitability (Macrosiphum euphorbiae, Aulacorthum solani), effect of temperature, and host seeking behavior of A. varipes continually will be investigated.

• Hee Bong Seok(Dept. of Applied Biology, Coll. of Agriculture & Life Sciences, Chungnam National University)
• Dae Hong Lee(Dept. of Applied Biology, Coll. of Agriculture & Life Sciences, Chungnam National University)
• Eun Jin Kang(Dept. of Applied Biology, Coll. of Agriculture & Life Sciences, Chungnam National University)
• Chang Wook Jo(Dept. of Applied Biology, Coll. of Agriculture & Life Sciences, Chungnam National University)
• Cho Rong Park(Dept. of Applied Biology, Coll. of Agriculture & Life Sciences, Chungnam National University)
• Mi Ja Seo(Dept. of Applied Biology, Coll. of Agriculture & Life Sciences, Chungnam National University)
• Yong Man Yu(Dept. of Applied Biology, Coll. of Agriculture & Life Sciences, Chungnam National University)
• Young Nam Youn(Dept. of Applied Biology, Coll. of Agriculture & Life Sciences, Chungnam National University)