We analyzed the variation in occurrence time and intensity of attacks by the rice stem borer (Chilo suppressalis Walker) on several crops. This study aimed to understand how C. suppressalis damages crops and to utilize this basic data for the establishment of environment-friendly control methods like pheromone traps. This study surveyed the changes in occurrence patterns of C. suppressalis, biological characteristics of overwintering larvae, and the efficacy of different types of pheromone traps the years. We found similar occurrence patterns of C. suppressalis in different crops. In addition, occurrence time of the first generation was advanced. Overwintering larvae showed no difference in pupal period and weight compared to the non-overwintering ones. However, the larval period was reduced to 19.1 days in Miscanthus field, in contrast to that in the paddy fields. It was confirmed that larvae of C. suppressalis generally prefer the lower part of the stems of Miscanthus. Efficiency of the emergence trap was confirmed to be greater than that of the delta trap for capturing C. suppressalis adults. However, it is necessary to adjust the control period because of the advancement in occurring time of C. suppressalis in recent years. The larvae of C. suppressalis experience favorable environmental conditions for overwintering in Miscanthus fields. The major Miscanthus fields are generally located in the areas protected for sources of drinking water, owing to which spraying of chemical pesticides is very limited. The results of this study provide important inputs for the development of environment-friendly control methods.

Abstract
 1. 서 론
 2. 재료 및 방법
  2.1. 작물별 이화명나방의 발생 비교
  2.2. 이화명나방 월동유충의 유충기간, 용기간 조사
  2.3. 이화명나방 유충의 억새 줄기 가해 습성 조사
  2.4. 이화명나방 트랩별 포획효과 조사
 3. 결 과
  3.1. 작물별 이화명나방의 발생양상 비교
  3.2. 이화명나방 월동유충의 유충기간, 용기간, 번데기무게
  3.3. 이화명나방의 억새줄기 가해 특성
  3.4. 이화명나방의 트랩별 포획효과
 4. 결 론
 REFERENCES

• 최낙중(국립식량과학원 작물기초기반과) | Nak Jung Choi (Crop Foundation Research Division, National Institute of Crop Science) Corresponding author
• 최준열(농촌진흥청 연구운영과) | June-Yeol Choi (Research Policy Bureau, Rural Development Administration)
• 이봉춘(국립식량과학원 작물기초기반과) | Bong-Choon Lee (Crop Foundation Research Division, National Institute of Crop Science)
• 김상민(국립식량과학원 작물기초기반과) | Sang-Min Kim (Crop Foundation Research Division, National Institute of Crop Science)
• 나지은(국립식량과학원 작물기초기반과) | Ji-Eun Ra (Crop Foundation Research Division, National Institute of Crop Science)
• 백채훈(국립식량과학원 기획조정과) | Chai-Hun Baik (Planning and Coordination Division, National Institute of Crop Science)
• 이종진(전북대학교 농생물학과) | Jong Jin Lee (Agricultural Biology, Chonbuk National University)