To survey the incidence of plant-parasitic nematodes, 187 soil samples from leguminous plant fields in Chungnam province, Korea were assessed from June to August 2018. As the result, four nematode genera ─ the cyst nematode (Heterodera spp.), root-knot nematode (Meloidogyne spp.), root-lesion nematode (Pratylenchus spp.), spiral nematode (Helicotylenchus spp.) ─ were detected. Among them, the incidence of cyst nematode was the highest in Taean (73%) and lowest in Hongseong (10%). The cyst nematode was detected from the adzuki and kidney bean fields as well as soybean fields. The incidence of cyst nematode in upland fields was higher than in paddy fields. In addition, the extracted cyst nematodes consisted of two species, which was identified as Heterodera glycines and H. sojae. The incidence of H. glycines (22%) was higher than H. sojae (10%), and a few of the fields (5%) was mixed with two cyst nematodes. This result suggested that we should consider that the cyst nematode is the major plantparasitic nematode when controlling the nematodes in soybean fields in Chungnam province.

Ⅰ. 서 론
Ⅱ. 재료 및 방법
    1. 토양 채취 및 선충 분리
    2. 충남지역 두류작물 재배지 식물기생선충 감염 밀도 조사 및 종 동정
    3. 충남지역 두류작물 문제 선충 정밀 분포 지도 작성
Ⅲ. 결 과
    1. 충남지역 두류작물 재배지 식물기생선충 감염 현황
    2. 충남지역 두류작물 문제 선충 정밀분포지도
Ⅳ. 고 찰
References

• 고형래(국립농업과학원 작물보호과) | Ko Hyoung-Rai Corresponding author
• 박은형(농촌진흥청 국립농업과학원 농산물안전성부 작물보호과) | Park Eun-Hyoung
• 김은화(농촌진흥청 국립농업과학원 농산물안전성부 작물보호과) | Kim Eun-Hwa
• 이재국(농촌진흥청 국립농업과학원 농산물안전성부 작물보호과) | Lee Jae-Kook