The occurrence of Laodelphax striatellus (SBPH) in Korea ranged 0.3-19.3 individuals in 2021, and 0.3-23.3 individuals in 2022 during the investigation period. Nilaparvata lugens (BPH) was not observed in 2021, but N. lugens (BPH) showed the highest number(82.0 inds.) in late September of 2022. The occurrence of Sogatella furcifera (WBPH) was not severe during the study period. Compared to Korea’s situation, N. lugens (BPH) and S. furcifera (WBPH) in Asian regions showed high occurrence in Bangladesh and Sri Lanka. The results of the field survey could be confirmed with the occurrence pattern of about once or twice in their regions. Continuous monitoring is required for the best control of planthopper species in rice production regions of Asia. We anticipate that exchange of occurrence information and establishment of a control cooperation system will improve rice productivity in Asian regions by preventing outbreak of planthopper species and reducing damages caused by the species.

ABSTRACT
서 언
재료 및 방법
결과 및 고찰
적 요
ACKNOWLEDGMENTS
REFERENCES

• 공민재(국립농업과학원 작물보호과) | Min-Jae Kong (Crop Protection Division, Department of Agro-Food Safety and Crop protection, National Institute of Agricultural Sciences)
• 김원영(국립농업과학원 작물보호과) | Won-Young Kim (Crop Protection Division, Department of Agro-Food Safety and Crop protection, National Institute of Agricultural Sciences)
• 김재군(국립농업과학원 작물보호과) | Jae-Kun Kim (Crop Protection Division, Department of Agro-Food Safety and Crop protection, National Institute of Agricultural Sciences)
• 박부용(농촌진흥청 연구운영과) | Bue-Yong Park (R&D Coordination Division, Research Policy Bureau, RDA)
• 조점래(국립농업과학원 작물보호과) | Jum-Rae Cho (Crop Protection Division, Department of Agro-Food Safety and Crop protection, National Institute of Agricultural Sciences)
• 정인홍(국립농업과학원 작물보호과) | In-Hong Jeong (Crop Protection Division, Department of Agro-Food Safety and Crop protection, National Institute of Agricultural Sciences)
• 박홍현(국립농업과학원 작물보호과) | Hong-Hyun Park (Crop Protection Division, Department of Agro-Food Safety and Crop protection, National Institute of Agricultural Sciences) Corresponding author