• Asian Journal of Turfgrass Science
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• v.17 no.2_3
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• pp.81-85
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• 2003

The plant parasitic nematodes were surveyed from Zoysia matrella, Agrotis palustris, and Poa pratensis at Anyang Benest Golf Club, Dongrae Benest Golf Club, and Gapyeong Benest Golf Club and from A. palustris at Castle Pine Golf Club. Criconema sp., Ditylenchus sp., Helicotylenchus sp., Meloidogyine sp., Pratylenchus sp., Tylenchus sp., and Tylenchorhynechus sp. were separated from unhealthy turf areas. In addition, Tylenchorhynechus dubius was firstly recorded from A. palustris at the green of Castle Pine Golf Club. Meloidogyne sp., Helicotylenchus sp., Ditylenchus sp., and Pratylenohus were separated from Z. matrella, Meloidogyne sp. and Pratylenchus were from A. palustris, and Meloidogyne sp., Tylenchus sp., Tylenchorhynchus sp., Criconema sp., and Helicotylenchus sp. were from P. pratensis. Out of separated nematodes, Meloidogyne was the most serious nematode and widely distributed.

• Korean journal of applied entomology
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• v.49 no.1
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• pp.57-60
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• 2010

Two new species of Tylenchorhynchus Cobb, 1913 from sugar cane fields in Sudan, T. sudanensis and T. elamini are described and illustrated. T. sudanensis is characterized by rather medium body size female, L= 0.692 mm long with rather medium stylet length of 20 - 23 ${\mu}m$. While T. elamini is characterized by medium body size female, L = 0.61 - 0.78 mm long, medium stylet length of 16 - 19 ${\mu}m$. Different characters of two new species are discussed. In addition, vital measurements and brief descriptions of two species are presented.

• Research in Plant Disease
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• v.20 no.2
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• pp.107-111
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• 2014

A greenhouse experiment was conducted to examine the effect of initial population density (Pi) of Helicotylenchus dihystera on six commercial tomato cultivars. Two-week-old tomato seedlings of six commercial cultivars were transplanted in d-10-cm clay pot and was inoculated with to give 0, 0.02, 0.2, and 2 nematodes/g soil. Plants were grown in a greenhouse for 60 days. Root and plant weights were unaffected but plant height declined only at inoculum level of 2 nematodes/g soil. At the highest initial population density (2 nematodes/g soil), plant height of tomato cv. Poseidon was reduced by 24%. Tomato cv. Hoyong produced the most nematodes with 7.0 nematodes/g soil and the least was tomato cv. Miniheuksu with 2.2 nematodes/g soil.

• Korean journal of applied entomology
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• v.32 no.1
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• pp.1-23
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• 1993

A taxonomical revision of the Korean species of family Belonolaimidae has been undertaken. Twenty three species belonging to four different genera under two subfamily were reported from Korea hiteroto. Among them Tylenchorhynchus martini to T. annulatus. Merlinius acuminatus, M. brevidens, M. joctus, M. lenorus, M. nothus and M. koreanus to genus Geocenamus. M. clavicaudatus, M. macrurus, M. socialis to genus Amplimerlinius and Quinisulcius capitatus to Tylenchorhynchus capitatus were synonymized respectively. The keys of the each genera were proposed for identification. Distribution, host plants and photograps were included.

• Korean Journal of Environmental Biology
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• v.39 no.2
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• pp.147-155
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• 2021

To investigate the incidence of plant-parasitic nematodes (PPNs) in perilla fields in Korea, 55 soil samples were collected from open fields and plastic-film house fields and were analyzed during January 2020 to October 2020. Root-lesion nematodes (RLNs), spiral nematodes, root-knot nematodes, and stunt nematodes were detected in perilla fields, and the incidences of RLNs (39%) and spiral nematodes (55%) were higher than those of other nematodes. Among PPNs, RLNs are very important species found on economic crops. The detection frequency of RLNs was increased due to continuous crop cultivation, and the frequency of fields that cultivated only one crop continuously for over 11 years was twice higher than the frequency of fields that cultivated only one crop for less than 5 years. The PPN species diversity and density were different between leaf-perilla cultivation fields and seed-perilla cultivation fields. In phylogenetic analysis of RLNs, Pratylenchus penetrans, P. vulnus, and Pratylenchoides leiocauda were identified in perilla fields. These results suggest the RLNs should be considered for establishing nematode management strategies in perilla fields in Korea.

• Korean journal of applied entomology
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• v.52 no.4
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• pp.327-333
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• 2013

Plant parasitic nematodes were isolated from 274 soil samples collected from soybean fields in Korea. Nematode importance rating in soybean is proposed based on this study and by reviewing other reports. Soybean cyst nematode, Heterodera glycines is the most important nematode species and rated as $1^{st}$ because it detected from 38%(range 25-51%) of soil samples with high density except Jeju province. Root-knot nematode, Meloidogyne spp. is rated $2^{nd}$ and is more widely distributed in southern provinces, Gyeongnam, Jeonnam, and Jeju province (detection rate ranged 16-44%). Pratylenchus is rated $3^{rd}$ and is more frequently detected from northern provinces such as Gyeonggi and Gangwon (detection rate ranged 10-13%). Helicotylenchus is rated $4^{th}$ and is particularly important in Jeju province (detection rate is 62% and numbers averaged 571 nematodes/$300cm^3$ soil), which is the main production area for sprouting soybean in Korea. Tylenchorhynchus, Paratylenchus, Criconema, Criconemoide, Mesocriconema, Ogma, Xiphinema, Paratrichodorus, and Trichodorus occur in low frequency and density, thus they are rated to $5^{th}$. We propose to delete following nematode genus from the list of soybean parasitic nematode in Korea because their parasitism on soybean is unconfirmed or negligible; Tylenchus, Aphelenchus, Aphelenchoides, Ditylenchus, Hirschmanniella immamuri, Basiria graminophila, Psilenchus, and Pseudhalenchus. Therefore, we revised 30 species in 16 genera as soybean parasitic nematodes in Korea. Importance rating is $1^{st}$ Heterodera glycines, $2^{nd}$ Meloidogyne spp., $3^{rd}$ Pratylenchus spp. and $4^{th}$ Helicotylenchus spp. especially in Jeju province.

• Korean journal of applied entomology
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• v.40 no.1
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• pp.15-21
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• 2001

A new species, Geocenamus seonunensis n. sp. and an unknown species, Geocenamus processes (Siddiqi, 1979) Brzeski, 1991 were newly reported from Korea. The Korean specimens closely related to G. myungsugae Choi & Geraert, 1993 but differ from G. myungsugae in having; Lip region set off by constriction and much longer stylet (Lp region is button-like , set off, stylet 22~$27{\mu}$m in G. myungsugae). It further differs from G. tumensis (Skwiercz, 1984) Brzeski, 1991 in having spermatheca rounded, stylet much longer, from G. superbus (Allen, 1955) Fortuner & Luc, 1990 in having tail terminus annulated, from G. brevicaudatus (Peng & Hunt, 1995) Brzeski, 1998 in having much longer stylet, from G. longus (Wu, 1969) Tarjan, 1973. in having smaller number of longitudinal striae. Another Korean specimens are well corresponded with Geocenamus processus (Siddiqi, 1979) Brzeski, 1991 ex- cept male tail tip which is not flagellum-like.