Riptortus pedestris is a polyphagous species and an economically important insect pest of soybean. We investigated the phenology of R. pedestris at 13 locations - Jeonju, Naju, Goheung, Milyang, Gunwi, Andong and 7 locations of Jeju. Fish trap was used for monitoring R. pedestris. The traps were baited with lures containing a 1:5:1 ratio of myristyl isobutyrate, (E)-2-hexenyl (E)-2 hexenoate and (E)-2-hexenyl (Z)-3-hexenoate. There was difference the first adult catch and local temperatures among sampling sites. To determine spring emergence distribution and annual phenology pattern, we used the monitoring data and ambient temperature from each sampling sites. We compare the seasonal occurrence and spring emergence between 2016 and 2017 in each location.

• Jeong Joon Ahn(Research Institute of Climate Change and Agriculture, National Institute of Horticultural and Herbal Science, RDA)
• Kyoung San Choi(Research Institute of Climate Change and Agriculture, National Institute of Horticultural and Herbal Science, RDA)
• Sangwook Koh(Research Institute of Climate Change and Agriculture, National Institute of Horticultural and Herbal Science, RDA)