Invasive Species Compendium

Detailed coverage of invasive species threatening livelihoods and the environment worldwide


Pratylenchus thornei



Pratylenchus thornei


  • Last modified
  • 14 July 2018
  • Datasheet Type(s)
  • Pest
  • Preferred Scientific Name
  • Pratylenchus thornei
  • Taxonomic Tree
  • Domain: Eukaryota
  •   Kingdom: Metazoa
  •     Phylum: Nematoda
  •       Family: Pratylenchidae
  •         Genus: Pratylenchus
  • There are no pictures available for this datasheet

    If you can supply pictures for this datasheet please contact:

    CAB International
    OX10 8DE
  • Distribution map More information

Don't need the entire report?

Generate a print friendly version containing only the sections you need.

Generate report


Top of page


Top of page

Preferred Scientific Name

  • Pratylenchus thornei Sher & Allen, 1953

International Common Names

  • Spanish: nematodo de Thorne (Mexico)

EPPO code

  • PRATTH (Pratylenchus thornei)

Taxonomic Tree

Top of page
  • Domain: Eukaryota
  •     Kingdom: Metazoa
  •         Phylum: Nematoda
  •             Family: Pratylenchidae
  •                 Genus: Pratylenchus
  •                     Species: Pratylenchus thornei

Distribution Table

Top of page

The distribution in this summary table is based on all the information available. When several references are cited, they may give conflicting information on the status. Further details may be available for individual references in the Distribution Table Details section which can be selected by going to Generate Report.

Continent/Country/RegionDistributionLast ReportedOriginFirst ReportedInvasiveReferenceNotes


AfghanistanPresentCABI Bioscience SQWORM database
IndiaPresentJOSHI et al., 1970; CABI/EPPO, 2012
-AssamPresentCABI/EPPO, 2012
-DelhiPresentSethi and Swarup, 1971; CABI/EPPO, 2012
-HaryanaPresentBajaj and Bhatti, 1982; CABI/EPPO, 2012
-Himachal PradeshPresentSethi and Swarup, 1971; CABI/EPPO, 2012
-Indian PunjabPresentSethi and Swarup, 1971; Bajaj and Bhatti, 1982; CABI/EPPO, 2012
-Jammu and KashmirPresentZaki et al., 1993; CABI/EPPO, 2012
-Madhya PradeshPresentShukla et al., 2001, publ. 2002; CABI/EPPO, 2012
-MaharashtraPresentDarekar et al., 1990; CABI/EPPO, 2012
-ManipurPresentDevi, 2009; CABI/EPPO, 2012
-RajasthanPresentSethi and Swarup, 1971; CABI/EPPO, 2012
-Tamil NaduPresentSubramaniyan and Sivakumar, 1991; CABI/EPPO, 2012
-Uttar PradeshPresentRakesh Pandey, 2003; CABI/EPPO, 2012
IranPresentKheiri, 1972; CABI/EPPO, 2012
IsraelPresentOrion et al., 1979; CABI/EPPO, 2012
JapanPresentGotoh and Ohshima, 1963; CABI/EPPO, 2012
JordanPresentCABI Bioscience SQWORM database; CABI/EPPO, 2012
Korea, Republic ofPresentCABI/EPPO, 2012
PakistanPresentKhan et al., 2006; CABI/EPPO, 2012
Saudi ArabiaPresentEissa, 1982; CABI/EPPO, 2012
SyriaPresentGreco et al., 1984; CABI/EPPO, 2012
TajikistanPresentCABI/EPPO, 2012
TurkeyPresentVito et al., 1994; Elekcioglu, 1995; CABI/EPPO, 2012


AlgeriaPresentCABI/EPPO, 2012
EgyptPresentOteifa et al., 1963; Oteifa and El-Sharkawi, 1965; CABI/EPPO, 2012
KenyaPresentDesaeger and Rao, 2001; CABI/EPPO, 2012
LibyaPresentEdongali and El-Malih, 1988; CABI/EPPO, 2012
MalawiPresentCABI Bioscience SQWORM database
MoroccoPresentMeskine and Abbad, 1993; CABI/EPPO, 2012
South AfricaPresentFourie et al., 2001; CABI/EPPO, 2012
-Canary IslandsPresentCABI/EPPO, 2012
SudanPresentElbadri et al., 2001; CABI/EPPO, 2012
TunisiaPresentVito et al., 2002; CABI/EPPO, 2012

North America

CanadaPresentYu Qing, 2008; CABI/EPPO, 2012
-OntarioPresentCABI/EPPO, 2012
MexicoPresentVan Gundy et al., 1974; Perez et al., 1970; CABI/EPPO, 2012
USAPresentSHER and ALLEN, 1953; Thorne, 1961; CABI/EPPO, 2012
-CaliforniaPresentSHER and ALLEN, 1953; CABI/EPPO, 2012
-ColoradoPresentCABI/EPPO, 2012
-IdahoPresentRiga et al., 2008; CABI/EPPO, 2012
-MarylandPresentCABI/EPPO, 2012
-NebraskaPresentCABI/EPPO, 2012
-OregonPresentSmiley et al., 2008; CABI/EPPO, 2012
-UtahPresentSHER and ALLEN, 1953; Thorne, 1961; CABI/EPPO, 2012
-VirginiaPresentCABI/EPPO, 2012
-WashingtonPresentMojtahedi et al., 1988; CABI/EPPO, 2012

South America

ArgentinaPresentDoucet, 1988; CABI/EPPO, 2012
ChilePresentRubilar and Aballay, 2006; CABI/EPPO, 2012
VenezuelaPresentPerichi et al., 2002; CABI/EPPO, 2012


BelgiumPresentCoolen and Hendricks, 1972; CABI/EPPO, 2012
BulgariaPresentRyss et al., 1991; CABI/EPPO, 2012
CroatiaPresentJelic, 1992; CABI/EPPO, 2012
CyprusPresentPhilis, 1976; CABI/EPPO, 2012
DenmarkPresentAndersen, 1979; CABI/EPPO, 2012
GermanyPresentCABI Bioscience SQWORM database; Loof, 1960; CABI/EPPO, 2012
GreecePresentKolipanos & Kalyvistis-Gazelas, 1979; CABI/EPPO, 2012
ItalyPresentD'Errico, 1970; CABI/EPPO, 2012
-Italy (mainland)PresentCABI/EPPO, 2012
-SicilyPresentCABI/EPPO, 2012
NetherlandsPresentOostenbrink, 1954; CABI/EPPO, 2012
PolandPresentCABI/EPPO, 2012
PortugalPresentAbrantes et al., 1987; CABI/EPPO, 2012
-AzoresPresentCABI/EPPO, 2012
RomaniaPresentCABI/EPPO, 2012
Russian FederationPresentTebenkova and Ivanova, 1989
SlovakiaPresentLi?ková et al., 2007; CABI/EPPO, 2012
SloveniaPresentCABI/EPPO, 2012
SpainPresentCABI Bioscience SQWORM database; CABI/EPPO, 2012
-Spain (mainland)PresentCABI/EPPO, 2012
UKPresentCABI Bioscience SQWORM database; CABI/EPPO, 2012
-England and WalesPresentCABI/EPPO, 2012
Yugoslavia (former)PresentGrujicic, 1969


AustraliaPresentColbran and McCulloch, 1965; CABI/EPPO, 2012
-New South WalesPresentMcLeod and Doyle, 1987; CABI/EPPO, 2012
-QueenslandPresentColbran and McCulloch, 1965; CABI/EPPO, 2012
-South AustraliaPresentGrandison and Wallace, 1975; CABI/EPPO, 2012
-TasmaniaPresentPethybridge et al., 2008; CABI/EPPO, 2012
-VictoriaPresentHollaway, 2002; CABI/EPPO, 2012
-Western AustraliaPresentRiley and Kelly, 2002; CABI/EPPO, 2012

Growth Stages

Top of page Seedling stage, Vegetative growing stage

List of Symptoms/Signs

Top of page
SignLife StagesType
Roots / necrotic streaks or lesions
Roots / reduced root system
Roots / soft rot of cortex
Whole plant / dwarfing

Natural enemies

Top of page
Natural enemyTypeLife stagesSpecificityReferencesBiological control inBiological control on
Pasteuria penetrans Parasite

Pathway Vectors

Top of page
VectorNotesLong DistanceLocalReferences
Clothing, footwear and possessions Yes
Containers and packaging - woodWith planting material. Yes
Land vehiclesIn soil. Yes
Mail Yes
Soil, sand and gravel Yes

Plant Trade

Top of page
Plant parts liable to carry the pest in trade/transportPest stagesBorne internallyBorne externallyVisibility of pest or symptoms
Bark adults; eggs; juveniles Yes Pest or symptoms not visible to the naked eye but usually visible under light microscope
Bulbs/Tubers/Corms/Rhizomes adults; eggs; juveniles Yes Pest or symptoms not visible to the naked eye but usually visible under light microscope
Roots adults; eggs; juveniles Yes Pest or symptoms not visible to the naked eye but usually visible under light microscope
Seedlings/Micropropagated plants adults; eggs; juveniles Yes Pest or symptoms not visible to the naked eye but usually visible under light microscope
Stems (above ground)/Shoots/Trunks/Branches adults; eggs; juveniles Yes Pest or symptoms not visible to the naked eye but usually visible under light microscope
Plant parts not known to carry the pest in trade/transport
Fruits (inc. pods)
True seeds (inc. grain)


Top of page

Abrantes IM de O; Faria CAT de; Santos MSN de A, 1987. Root-lesion nematode (Pratylenchus spp.) in Portugal. Nematologia Mediterranea, 15(2):375-378.

Andersen HJ, 1979. Migratory nematodes in Danish barley fields. I. The qualitative and quantitative composition of the fauna. Tidsskrift for Planteavl, 83(1):1-8

Bajaj HK; Bhatti DS, 1982. Nematodes associated with cotton in Haryana and Punjab with description of two new leptonchid nematodes. Indian Journal of Nematology, 12(1):6-13

CABI/EPPO, 2012. Pratylenchus thornei. [Distribution map]. Distribution Maps of Plant Diseases, No.April. Wallingford, UK: CABI, Map 1124 (Edition 1).

Colbran RC; McCulloch JS, 1965. Nematodes associated with wheat in Queensland. Qd. J. Agric. Anim. Sci., 22:353-356.

Coolen WA; Hendricks GJ, 1972. Monografie over de nematologische situatie in de Belgische rozenteelt. Merelbeke, Belgium: Publikatie nr. W 10, Rijksstation voor Nematologie und Entomologie.

Darekar KS; Shelke SS; Mhase NL, 1990. Nematodes associated with groundnut in Maharashtra State, India. Bioved, 1(1):99-100; 4 ref.

D'Errico FP, 1970. Su alcuni nematodi fitoparassiti trovati in Italia. Boll. Lab. Entomol. Agraria Filippo Silvestri, Portici, Italy, 28:183-189.

Desaeger J; Rao MR, 2001. The potential of mixed covers of Sesbania, Tephrosia and Crotalaria to minimise nematode problems on subsequent crops. Field Crops Research, 70(2):111-125.

Devi NR, 2009. Plant parasitic nematodes associated with Indian pennywort Centella asiatica (L.) urban in Manipur. Journal of Threatened Taxa, 1(12):617-618.

Doucet MC, 1988. Description of four populations of Pratylenchus (Nematoda: Tylenchida) prominent in the Province of Cordoba, Argentina. Revista de Ciencias Agropecuarias (Co^acute~rdoba), 6:7-21; 16 ref.

Edongali EA; El-Malih AKR, 1988. Pratylenchus thornei on almond in Libya. International Nematology Network Newsletter, 5(3):44; 5 ref.

Eissa MFM, 1982. Control of Pratylenchus thornei parasitizing potato under field conditions of Saudi Arabia. Research Bulletin, Faculty of Agriculture, Ain Shams University, No.1742:14pp.

Eissa MFM; Moussa FF, 1982. Efficacy of some systemic nematicides on nematode populations and yield of wheat in Nile-Delta with reference to a new criterion "Nematistatic value" for evaluation of nematode population characteristics. Research Bulletin, Faculty of Agriculture, Ain Shams University, Cairo, No. 1741:10 pp.

Elbadri GAA; Bert W; Geraert E, 2001. Tylenchida associated with different crops in Sennar State (Sudan). Mededelingen - Faculteit Landbouwkundige en Toegepaste Biologische Wetenschappen, Universiteit Gent [Proceedings of the 53rd International Symposium on Crop Protection, Gent, Belgium, 8 May 2001. Part II.], 66(2b):633-643.

Elek¦ioglu IH, 1995. Occurrence of Pasteuria bacteria as parasites of plant-parasitic nematodes in the East Mediterranean region of Turkey. Nematologia Mediterranea, 23(2):213-215; 12 ref.

Fortuner R, 1977. Pratylenchus thornei. C.I.H. Descriptions of Plant-parasitic Nematodes Set 7, No. 93:3 pp.

Fourie H; McDonald AH; Loots GC, 2001. Plant-parasitic nematodes in field crops in South Africa. 6. Soybean. Nematology, 3(5):447-454.

Gotoh A; Ohshima Y, 1963. Pratylenchus species and their geographical distribution in Japan (Nematoda: Tylenchida). Jap. J. Appl. Ent. Zool., 7:187-199.

Grandison GS; Wallace HR, 1974. The distribution and abundance of Pratylenchus thornei in fields of strawberry clover (Trifolium fragiferum). Nematologica, 20(3):283-290

Greco N; Vito de M; Reddy MV; Saxena MC, 1984. A preliminary report of survey of plant parasitic nematodes of leguminous crops in Syria. Nematologia Mediterranea, 12:87-93.

Grujicic G, 1969. Contributions to the study of parasitic nematodes on wheat in Yugoslavia. Savremena Poljoprivreda, 17(11/12):531-539

Grujicic G, 1969. Contributions to the study of parasitic nematodes on wheat in Yugoslavia. Savremena Poljoprivreda, 17(11/12):531-539

Hollaway GJ, 2002. Effect of oat (Avena sativa) on the population density of Pratylenchus thornei in the field. Australasian Plant Pathology, 31(2):147-149.

Jelic A, 1992. A contribution to the study of phytoparasitic nematodes in wheat. Znanost i Praksa u Poljoprivredi i Prehrambenoj Tehnologiji, 22(1):229-236; 9 ref.

JOSHI LM; RENFRO BL; SAARI EE; WILCOXSON RD; RAYCHAUDHURI SP, 1970. Diseases of wheat in India other than rusts and smuts. Plant Disease Reporter, 54(7):594-597.

Khan A; Shaukat SS; Soomro MH; Samad MA, 2006. Nematodes associated with date-palm in Lasbela District, Balochistan, Pakistan. Pakistan Journal of Nematology, 24(2):191-197.

Kheiri A, 1972. Plant parasitic nematodes (Tylenchida) from Iran. Biologisch Jaarboek Dodonaea, 40:224-239.

Koliopanos CN; Kalyviotis-Gazelas C, 1979. Nematodes and host-plants identified for the first time in Greece. Annales de l'Institut Phytopathologique Benaki, 12(1):50-58

Li?ková M; Sasanelli N; D'Addabbo T, 2007. Some notes on the occurrence of plant parasitic nematodes on fruit trees in Slovakia. Plant Protection Science, 43(1):26-32.

Loof PAA, 1960. Taxonomic studies on the genus Pratylenchus (Nematoda). Tijdschr. Plantenziekten, 66:29-90.

McLeod RW; Doyle AD, 1987. Numbers of root lesion nematode (Pratylenchus thornei) in wheat yield decline areas. Plant Disease Survey New South Wales 1985-86, 55:19-22.

Meskine M; Abbad FA, 1993. Importance of plant parasitic nematodes associated with wheat and barley crops in Morocco. Al Awamia, No. 80:123-134; 12 ref.

Mojtahedi H; Santo GS; Kraft JM, 1988. First report of Pratylenchus thornei on dry land wheat in Washington State. Plant Disease, 72:175.

Oostenbrink M, 1954. Over de betekenis van vrijlevende wortelaaltjes in land- en tuinbouw. Versl. Meded. PlZiekt. Dienst Wageningen, 124:196-233.

Oostenbrink M; s'Jacob JJ; Kuiper K, 1956. An interpretation of some crop rotation experiences based on nematode surveys and population studies. Nematologica, 1:202-215.

Orion D; Krikun J; Sullami M, 1979. The distribution, pathogenicity and ecology of Pratylenchus thornei in the northern Negev. Phytoparasitica, 7(1):3-9

Oteifa BA; El-Sharkawi SE, 1965. Species identity of some Egyptian parasitic nematodes of onion. Bull. zool. Soc.Egypt, 20:55-62.

Oteifa BA; Rushdi M; El-Sharkawi SE, 1964. A preliminary survey of nematodes associated with onion fields of Assiut Province with special reference to distribution of parasitic genera. Bull. Sci. Technol. Assiut Univ., 7:205-252.

Oteifa BA; Rushdi M; Salem A, 1963. Nematodes associated with sugarcane. Bull. Sci. Technol. Assiut Univ., 6:251-261.

Perez B; Van Gundy SD; Stolzy LH; Thomason IJ; Laird RJ, 1970. Pratylenchus thornei, a nematode pest of wheat in Sonora, Mexico. Phytopathology, 60:1307.

Perichi G; Crozzoli R; Greco N; Rivas JT, 2002. Plant parasitic nematodes associated with sugarcane in Venezuela. Carabobo State. (Nematodos fitoparasíticos asociados a la caña de azúcar en Venezuela. Estado Carabobo.) Fitopatología Venezolana, 15(2):26-29.

Pethybridge SJ; Hay FS; Esker PD; Gent DH; Wilson CR; Groom T; Nutter FW Jr, 2008. Diseases of pyrethrum in Tasmania: challenges and prospects for management. Plant Disease, 92(9):1260-1271. HTTP://

Philis J, 1976. Occurrence and control of nematodes affecting carrot crops in Cyprus. Nematologia Mediterranea, 4:7-12.

Rakesh Pandey, 2003. Root-knot disease of safed musli. Indian Journal of Nematology, 33(1):64.

Riga E; Porter LD; Mojtahedi H; Erickson D, 2008. Pratylenchus neglectus, P. thornei, and Paratylenchus hamatus nematodes causing yield reduction to dryland peas and lentils in Idaho. Plant Disease, 92(6):979. HTTP://

Riley IT; Kelly SJ, 2002. Endoparasitic nematodes in cropping soils of Western Australia. Australian Journal of Experimental Agriculture, 42(1):49-56.

Rubilar P; Aballay E, 2006. Morphometrics of two Pratylenchus species associated with sugar beet in the Eighth Region (Bio-Bio), Chile. Fitopatología, 41(2):81-85.

Ryss A; Baicheva O; Stoyanov D, 1991. A new phytonematode for Bulgaria Pratylenchus pinguicaudatus Corbett, 1969 and morphological description of Pratylenchus thornei Sher et Allen, 1953 and Zygotylenchus guevarai Tobar Jimenez, 1963. Khelmintologiya, No. 30:3-8; 11 ref.

Sethi CL; Swarup G, 1971. Plant parasitic nematodes of North-Western India. III. The genus Pratylenchus. Indian Phytopathology, 24(2):410-412

SHER SA; ALLEN MW, 1953. Revision of the genus Pratylenchus (Nematoda : Tylenchidae). University of California Publications in Zoology, 57(6):441-470.

Shukla BN; Vadhera I; Tiwari SP; 2001, publ. 2002. Impact of deep summer ploughing, seed dressing and soaking with nematicide on Pratylenchus thornei. JNKVV Research Journal, 35(1/2):82-83.

Smiley RW; Sheedy JG; Easley SA, 2008. Vertical distribution of Pratylenchus spp. in silt loam soil and Pacific Northwest dryland crops. Plant Disease, 92(12):1662-1668. HTTP://

Subramaniyan S; Sivakumar CV, 1991. Pratylenchus species. Current Research, 20:17-20.

Teben'kova TM; Ivanova TS, 1989. Plant-parasitic nematodes of fruits in Tadzhikistan. 1. Nematodes of cultivated fruits in the lowland zone. Izvestiya Akademii Nauk Tadzhiskoi^breve~ SSR, Biologicheskikh Nauk, No. 3:7-11.

Thorne G, 1961. Principles of Nematology. London, UK: McGraw Hill.

Van Grundy SD; Perez B JG; Stolzy LH; Thomason IJ, 1974. A pest management approach to the control of Pratylenchus thornei on wheat in Mexico. Journal of Nematology, 6(3):107-116

Vito de M; Greco N; Oreste G; Saxena MC; Singh KB; Kusemenoglu I, 1994. Plant parasitic nematodes of legumes in Turkey. Nematologia Mediterranea, 22:245-251.

Vito Mdi; Catalano F; Zaccheo G, 2002. Reproduction of six populations of Pratylenchus spp. from the Mediterranean region on selected plant species. Nematologia Mediterranea, 30(1):103-105.

Yu Qing, 2008. Species of Pratylenchus (Nematoda: Pratylenchidae) in Canada: description, distribution, and identification. Canadian Journal of Plant Pathology, 30(3):477-485.

Zaki FA; Kaul V; Waliullah MIS, 1993. Plant parasitic nematodes associated with potato-turnip rotation and other vegetable crops in Kashmir. Indian Journal of Nematology, 21:174-175.

Distribution Maps

Top of page
You can pan and zoom the map
Save map