잔디바늘선충(Paralongidorus Koreanensis) 방제를 위한 살선충제 현장적용 연구 = Field evaluation of nematicides for the control of the Paralongidorus koreanensis in Korea*

다국어 초록 (Multilingual Abstract)

Plant-parasitic nematodes have become an important constraint to turfgrass quality on golf courses in Korea, particularly with the recent increase of the needle nematode Paralongidorus koreanensis in Zoysia (Zoysia japonica) fairways. However, information on effective nematicide management for turfgrass nematodes, including application methods and environmental influences, remains limited.
This study evaluated the nematicidal activity of selected non-fumigant nematicides against turfgrass-associated nematodes, with emphasis on P. koreanensis, through laboratory bioassays and field trials. Laboratory assays demonstrated clear dose-dependent responses among tested nematicides, with cyclobutrifluram exhibiting consistently high activity. Field experiments conducted at multiple golf courses in 2023 revealed that nematicide efficacy varied according to formulation type and soil depth, and was strongly influenced by temperature and precipitation patterns.
To further clarify the role of soil moisture, an additional field trial was conducted in 2025 with direct soil moisture measurements and different application volumes. Nematicide performance differed markedly between sites with contrasting soil moisture conditions, indicating that soil water status plays a critical role in nematicide movement, root-zone contact, and control efficacy.
Overall, these results demonstrate that successful management of turfgrass nematodes requires integration of nematicide formulation, application strategy, and soil moisture conditions. This study provides practical insights for improving nematode management in golf course turfgrass systems in Korea.

목차 (Table of Contents)

• 서론 1
• 재료 및 방법 19
• 잔디바늘선충(Paralongidorus koreanenesis)에 대한 살선충 실내 검정 19
• 선충 분리 19
• 살선충제 활성 검정 20
• 실내 살선충 활성 검정 22
• 선충의 치사 평가 22
• 잔디바늘선충의 시기별 밀도 변동 및 토양 분포 조사 23
• 잔디바늘선충에 대한 야외 생물검정 24
• 살선충제 종류 및 제형별 선충 방제 효과 검정 24
• 살선충제의 처리물량에 따른 선충 방제 효과 시험 36
• 결과 39
• 잔디바늘선충(Paralongidorus koreanenesis)에 대한 살선충 활성 실내 검정 39
• 잔디바늘선충 시기별 토양 분포 조사 42
• 잔디기생선충에 대한 야외 검정 44
• 살선충제 종류 및 제형별 약제 효과 검정 44
• 처리물량과 토양 습도조건에 따른 약제 효과 시험 58
• 고찰 68
• 참고문헌 88