• 한국토양동물학회지
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• 제10권1_2호
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• pp.55-64
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• 2005

Predatory nematodes are ubiquitous and feed on soil microorganisms including plant parasitic nematodes. They reduce populations of plant parasitic nematodes in virtually all soils because of their constant association with plant parasitic nematodes in the rhizosphere. Predatory potential of several species of predacious nematodes, belonging to the orders Mononchida, Diplogasterida, Dorylaimida and Aphelenchida, have been studied in detail on plant parasitic nematodes but most of the studies were based on in vitro experiments. A review of progress on the use of predatory nematodes as biological control agents of plant parasitic nematodes reveals that advocacy for predatory nematodes dates back to the early $20^{th}$ century; nevertheless, their potential has begun to be studied in recent years. Information on the efficacy of predatory nematodes under field conditions is lacking; however, some predatory nematodes have given very promising results against plant parasitic nematodes. This article summarizes research progress to date on predatory nematodes and discusses about their possible use in the management of plant parasitic nematodes.

• The Plant Pathology Journal
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• 제37권5호
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• pp.446-454
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• 2021

Plant-parasitic nematodes are not only an important constraint on agricultural crop production, but also cause both direct and indirect damage to turfgrass, which is a ground cover plant. However, studies on plant-parasitic nematodes of turfgrass in Korea are scarce. A survey for plant-parasitic nematodes was carried out on 13 golf courses in Korea. The results yielded 28 species/taxa belonging to 16 genera and 12 families of plant-parasitic nematodes. Among the isolated species, Helicotylenchus microlobus, Mesocriconema nebraskense, Tylenchorhynchus claytoni, Mesocriconema sp., and Meloidogyne graminicola were the most prevalent species in all management zones. Twelve species were new records of plant-parasitic nematodes in Korea. Highest maximum densities were showed by T. claytoni, Paratylenchus nanus, M. nebraskense, M. graminicola, and H. microlobus. Diversity (H'), was significantly higher in fairways compared to tees and greens, though species evenness (J') and dominance (D) showed no statistically significant differences. This information is crucial in nematode problem diagnosis, and the subsequent formulation of management strategies.

• 한국토양비료학회지
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• 제45권1호
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• pp.74-78
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• 2012

Envioronmental concerns by use of chemical pesticides have increased the need for alternative method in the control of plant-parasitic nematodes. Biological control is considered eco-friendly and a promising alternative in pest and disease management. A wide range of organisms are known to be effective in control of plant-parasitic nematodes. Fungal biological control is a hopeful research area and there is constant attention in the use of fungi for the control of nematodes. In this review, plant-parasitic nematodes with reference to soils and biological control and nematophagous fungi are dicussed.

• The Plant Pathology Journal
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• 제21권4호
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• pp.387-390
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• 2005

A survey was conducted during February-March 2003 to determine the occurrence and population density of plant-parasitic nematodes in strawberry (Fragaria ananassa) fields, cultivated under plastic houses in major strawberry growing regions of Gyeongbuk and Chonbuk provinces, Korea. The survey revealed presence of eleven species of plant-parasitic nematodes viz., Aphelenchoides fragariae, Criconemoides morgensis, Ditylenchus dipsaci, Helicotylenchus dihystera, Hirschmanniella imamuri, Meloidogyne arenaria, M. incognita, Pratylenchus penetrans, Psilenchus hilarulus, Tylenchorhynchus claytoni and Xiphinema sp. Frequency and density of each species were highly variable from field to field and within the field. Plant growth was not uniform in the surveyed fields under plastic houses; stunted growth, chlorotic leaves, small curled or crinkled leaves, deformed buds and flowers and wilted plants with fewer fruits were observed in patches.

• 식물병연구
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• 제29권4호
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• pp.459-463
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• 2023

정서적 안정과 휴식에 효과적이며, 공기 정화 등 기능성을 가진 관엽식물에 대한 수요가 증가하고 있으나, 관엽식물에 피해를 유발할 수 있는 식물기생선충에 대한 연구는 전무한 실정이다. 본 연구는 국내 판매되고 있는 관엽식물에서 발생하는 식물기생선충의 검출 여부와 밀도를 파악하고자 관엽식물과 작물재배지에 대해 2022년 7월부터 12월까지 모니터링을 수행하였다. 415개의 관엽식물과 국내 24개 차나무 및 22개 감귤재배지의 식물기생선충을 조사하였다. 관엽식물 내 식물기생선충 조사 결과, 뿌리썩이선충이 가장 많이 검출되었으며, 잎선충, 뿌리혹선충, 침선충이 확인되었다. 차나무재배지에서는 나선선충, 씨스트선충, 뿌리혹선충, 뿌리썩이선충이 검출되었고, 감귤재배지에서는 감귤선충, 주름선충, 뿌리썩이선충, 뿌리혹선충 등이 검출되었다. 관엽식물, 차나무 및 감귤 재배지에서 뿌리썩이선충이 가장 우려되는 식물기생선충이었으나, 뿌리혹선충, 씨스트선충이 일부 검출되어 피해가 우려되므로 온탕침법, 유기농업자재의 사용, 잡초제거 등 식물기생선충의 방제 방법을 재배에 적용하여야 할 것이다.

• 식물병연구
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• 제22권4호
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• pp.243-248
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• 2016

As preventive measures for bonsai exports, nematodes were isolated from 55 bonsai samples of five coniferous species (Chamaecyparis pisifera, Juniperus chinensis, Pinus densiflora, Pinus thunbergii, and Taxus cuspidate) from all 15 bonsai gardens in Korea. Nematodes belonging to 21 genera in 7 orders were isolated from the 55 bonsai samples. Among plant-parasitic nematodes, Tylenchus spp. was the most frequently isolated (14.9%), followed by Ditylenchus spp. (10.5%), Aphelenchoides spp. (9.5%), Aphelenchus sp. (5.5%), Criconemoides sp. (4.0%), Helicotylenchus sp. (0.7%), Hemicycliophora sp. (0.7%), Mesocriconema sp. (0.7%), Tylenchorhynchus sp. (0.7%), and Paratylenchus sp. (0.4%). Among nonparasitic nematodes, Cephalobina was the most frequently isolated nematodes (26.5%), followed by Rhabditida (19.3%), Dorylaimida (17.8%), Pangrolaimida (14.5%), Plectida (6.5%), Tryphylida (6.2%), Mononchida (3.3%), Alaimida (2.9%), Monhysterida (2.5%), and Triplonchida (0.4%). Based on these results, we conclude that there is no problematic plant-parasitic nematode in bonsai gardens of Korea.

• 식물병연구
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• 제29권1호
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• pp.45-51
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• 2023

국내 참다래 주산지인 전라남도, 경상남도, 제주도 지역의 참다래 재배지 총 102개 지점을 대상으로 식물기생선충 종류와 밀도를 조사하였다. 검출된 식물기생선충은 뿌리혹선충(Meloidogyne spp.), 나선선충(Helicotylenchus spp.), 침선충(Paratylenchus spp.) 등 9개의 속이었으며, 102개 재배지 중 56%의 재배지가 뿌리혹선충에 감염되어 있는 것으로 나타나 국내 참다래 재배지에서 가장 중요한 식물기생선충은 뿌리혹선충이었다. 뿌리혹선충의 평균 밀도는 97마리/300 cm³ 토양으로 참다래의 수량 감소 피해가 우려된다. 뿌리혹선충의 종을 동정한 결과, M. arenaria, M. hapla, M. incognita, M. javanica 4종이 확인되었으며, 그 중 M. arenaria가 가장 우점하고 있다. 그 중 M. arenaria가 가장 우점하고 있다. 과수류에서의 식물기생선충 감염 경로는 감염된 묘목의 이식을 통한 확산이 많음으로 참다래 묘목 생산 및 보급단계에서 뿌리혹선충 무균묘 생산에 주의를 기울여야 할 것이다.

• 한국자원식물학회지
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• 제35권1호
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• pp.23-28
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• 2022

정부의 논 타작물 재배사업으로 인하여 밭으로 전환되는 논 면적이 증가하고 있다. 논둑의 식물기생성선충들의 감염 실태를 조사한 결과, 논둑에서 재배되는 작물은 콩 66%, 팥 21%, 들깨 13%였다. 논둑에서 발견된 식물기생성선충은 Helicotylenchus sp., Heterodera glycines, Meloidogyne arenaria, M. javanica, M. hapla, Paratylenchus projectus, Pratylenchus coffeae, P. neglectus, Rotylenchus incultus, Trichodorus sp. Tylenchorhynchus crassicaudatus, T. claytoni 등 총 8속 10종, 미동정 2종으로 국내 주요 식물기생성선충의 속이 거의 모두 포함되어 있었다. 논둑 작물에서 가장 많이 발견된 식물기생성선충은 나선선충류인 Rotylenchus (42%)였다. 처음으로 시도된 논둑 식물기생성선충 조사에서 예상보다 높은 밀도의 주요 식물기생성선충 8속 10종이 발견되었으므로 논둑에서 식물기생성선충이 논이 전환된 밭으로 점염될 염려가 있어 주의가 필요하다.

• 한국약용작물학회지
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• 제12권5호
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• pp.355-359
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• 2004

A survey was conducted during $April{\sim}May$ 2004 to determine the occurrence and population density of plant-parasitic nematodes in ginseng (Panax ginseng C.A. Meyer) growing fields, in major ginseng growing regions of Chungbuk, Chungnam, Gyeongbuk and Kyongki provinces. The survey revealed presence of eleven species of plant-parasitic nematodes namely, Criconemoides morgensis, Ditylenchus destructor, Helicotylenchus dihystera, Meloidogyne incognita, M. hapla, Paratylencgus lepidus, Pratylenchus penetrans, Psilenchus hilarulus, Trichodorus similis, Tylenchorhynchus claytoni and Xiphinema americanum. Frequency and density of each species were highly variable. M. incognita and M. hapla were the predominant species, their infestation observed in 46.3 and 39.4% fields with an average density of $78{\sim}254\;and\;76{\sim}211$ nematodes per $300\;cm^3$ soil, respectively. Whereas, T. similis and X. americanum were rarely observed; only in 2.3 and 1.8% of surveyed fields and their density was $10{\sim}17\;and\;7{\sim}10$ individuals per $300\;cm^3$ soil, respectively. They are recorded herewith for the first time from ginseng fields of Korea. In nematode-infestated fields, stunted plant growth with chlorotic leaves, and wilted plants were observed in patches.

• The Plant Pathology Journal
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• 제28권3호
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• pp.306-310
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• 2012

Populations of plant-parasitic nematodes were evaluated in soil and root samples from areas planted with passion fruit, or covered with adjacent native cerrado vegetation, in five different cropping regions of the Brazilian Federal District. From July 2007 to January 2008, twenty samples had been collected in five Rural Centers (N$\acute{u}$cleo Rural-NR) planted with passion fruit. In five sites, samples were also collected in native cerrado vegetation. Specimens of nine genera of plant-parasitic nematodes (Meloidogyne, Helicotylenchus, Rotylenchulus, Scutellonema, Pratylenchus, Paratylenchus, Hemicycliophora, Xiphinema and Criconemoides) were found in the present survey. Important nematode pathogens, such as Rotylenchulus reniformis and Meloidogyne spp. were observed in the passion fruit plantations throughout five major producing regions of the Brazilian Federal District.