Daucus carota
carrot
32 Related Pests
Carrot red leaf virus
virus
Australia, New Zealand, Japan, USA, Canada, Europe
Reported in CA, WA, PA, OR
Korea
2021-11-15 19:31:23
Part of the Carrot motley virus complex and requires Carrot mottle virus to cause economic losses and symptoms. Aphid transmitted only.
Limited to Umbelliforaceae hosts. The only economic crops infected are carrot and parsley
No
CTRLV0-2,CTRLV0-3,CTRLV0-4,CTRLV0-5,
Transmitted by aphids only. Seed is not known to be a pathway. Seed transmission is not known to occur.
CTRLV0-2,CTRLV0-3,CTRLV0-4,CTRLV0-5,
Brunt, AA, Crabtree, K., Dallwitz, MJ, Gibbs, AJ, Watson, L. and Zurcher, EJ. (eds.). Plant Viruses Online: Descriptions and Lists from the VIDE Database, Version: 16th 1997. http://bio-mirror.im.ac.cn/mirrors/pvo/vide/refs.htm
Waterhouse, PM and Murant, AF. 1982. Carrot red leaf virus Datasheet 249. Description of Plant Viruses website; http://dpvweb.net/dpv/
International Seed Federation Regulated Pest List Database, www.pestlist.worldseed.org Nyon Switzerland.
Krass CJ and Schlegel DE, 1974. Motley dwarf virus disease complex of California carrots. Phytopathology 64:151-152
Carrot mottle virus
virus
Australia, New Zealand, Japan, USA, Europe
CA, PA, WA, WI
Korea
2021-11-15 19:31:34
Part of a complex with CaRLV. Not known to produce symptoms without this associated virus (CMOV00-3)
Limited. carrot and parsley (Petroselinum crispum) only important crops infected by this virus
No
CMOV00-2,CMOV00-3,CMOV00-4,CMOV00-5,
Seed is not known to be a pathway. No evidence of seed transmission.
CMOV00-2,CMOV00-3,CMOV00-4,CMOV00-5,
Brunt, AA, Crabtree, K., Dallwitz, MJ, Gibbs, AJ, Watson, L. and Zurcher, EJ. (eds.). Plant Viruses Online: Descriptions and Lists from the VIDE Database, Version: 16th 1997. http://bio-mirror.im.ac.cn/mirrors/pvo/vide/refs.htm
Murant, AF, 1974. Carrot mottle virus Datasheet 137. Description of Plant Viruses ; http://dpvweb.net/dpv/
International Seed Federation Regulated Pest List Database, www.pestlist.worldseed.org Nyon Switzerland.
Krass CJ and Schlegel DE, 1974. Motley dwarf virus disease complex of California carrots. Phytopathology 64:151-152
Carrot yellow leaf virus
virus
Japan, Netherland, United Kingdom
Not known to be in the US
Korea
2021-11-15 19:31:12
carrot
No
CYLV00-1,CYLV00-2
Seed is not known to be a pathway for this virus.
CYLV00-1,CYLV00-2
Brunt, AA, Crabtree, K., Dallwitz, MJ, Gibbs, AJ, Watson, L. and Zurcher, EJ. (eds.). Plant Viruses Online: Descriptions and Lists from the VIDE Database, Version: 16th 1997. http://bio-mirror.im.ac.cn/mirrors/pvo/vide/refs.htm
International Seed Federation Regulated Pest List Database, www.pestlist.worldseed.org Nyon Switzerland.
Tomato black ring virus
virus
Lettuce Ringspot Virus, Bean Ringspot Virus, Beet Ringspot Virus, Celery Yellow Vein Virus, Lettuce Ringspot Virus,Potato Bouquet Virus, Potato Pseudo-Aucuba Virus,Tomato Black Ring Nepovirus
India, Japan, Turkey, throughout Europe
Not known to occur
China, Korea, Mexico, Thailand
2022-11-03 18:40:04
Wide host range reported. Requires the Dagger nematode to transmit this virus
Wide host range, however many are experimental only. Important crops listed below.
No
ISF RPLD,TBRV00-1,RICH ISTA,
There is no evidence that carrot is a host for this virus.
ISF RPLD,TBRV00-1,RICH ISTA,
International Seed Federation Regulated Pest List Database. pestlist.worldseed.org Nyon Switzerland
Tomato Black Ring Virus. In: Crop Protection Compendium. Wallingford, UK: CAB International. www.cabi.org/cpc.
Richardson, MJ. 1990. An Annotated List of Seedborne Diseases. International Seed Testing Association, Zurich Switzerland.
Ditylenchus dipsaci
nematode
Anguillula devastatrix, Anguillula dipsaci, Anguillula secalis, Anguillulina dipsaci,Anguillulina dipsaci var. communis, Ditylenchus allocotus, Ditylenchus amsinckiae, Ditylenchus dipsaci var. tobaensis, Ditylenchus fragariae,Ditylenchus sonchophila, Ditylenchus trifolii, Tylenchus allii Tylenchus devastator, Tylenchus devastatrix
Tylenchus dipsaci, Tylenchus havensteini, Tylenchus hyacinthi, Tylenchus putrefaciens
Worldwide in temperate climates.
Widespread
Brazil
2023-05-05 19:09:29
Ditylenchus dipsaci is known to attack over 450 different plant species, including many weeds. There are approximately 20 biological races known that tend to prefer certain hosts.
No
DITYDI-3,CABI CPC,ISF RPLD,
Pathway not proven. Though seed pathway was speculated (DITYDI-3), seed used for research was not cleaned and conditioned. Debris associated with the seed may have carried D. dipsaci.
DITYDI-3,CABI CPC,ISF RPLD,
Sieve method
DITYDI-3,
Used for research. This method has not been standardized or validated.
Seed fumigation
DITYDI-3,
Crop rotation with non-hosts and fumigation most effective
Green and Sime, 1979. The Dispersal of Ditylenchus dipsacii in vegetable crops. Annals of Applied Biology 92; 263-270
Crop Protection Compendium. Wallingford, UK: CAB International. www.cabi.org/cpc.
International Seed Federation Regulated Pest List Database. pestlist.worldseed.org Nyon Switzerland
Candidatus liberibacter solanacearum
phytoplasma
Liberibacter psyllaurous, Liberibacter solancearum, Candidatus Liberibacter psyllaurous, psyllid yellows, zebra complex
Canada, Mexico, Central America, Northern Europe, New Zealand, Honduras, Mexico, Finland, Sweden, Norway, France, Spain, Canary Islands.
TX, NB, CO, KS, WY, NM, AZ, NV, CA, ID, OR, MT, ND, UT, WA
China, Thailand, Korea
2021-11-15 19:09:10
Primarily found in potatoes and tomatos in US, Not known to occur in carrots, peppers or celery in the US.
potato, tomato, pepper, tobacco, eggplant, other solanaceus weeds Reported on carrot, celery.
No
LIBEPS-1,LIBEPS-3,LIBEPS-4,
Pathway not proven. This bacterium requires the Bactericera trigonica or Trioza apicalis psyllid for transmission. There is one report of possible seed as a pathway, (LIBESP-3) that has yet to be substantiated.
LIBEPS-1,LIBEPS-3,LIBEPS-4,
Candidatus liberibacter solanacearum In: Crop Protection Compendium. Wallingford, UK: CAB International. www.cabi.org/cpc.
Bertolini, E., Teresani, G.R., Loiseau, M., Tanaka, F.A.O., Barbé, S., Martínez, C., Gentit, P., López, M. M. and Cambra, M. (2015). Transmission of ‘Candidatus Liberibacter solanacearum’ in carrot seeds. Plant Pathology 64: 276–285.
International Seed Federation Regulated Pest List Database. pestlist.worldseed.org Nyon Switzerland
Dickeya chrysanthemi
bacterium
Eriwina chrysanthemi (and pathovars,varieites), Pectobacterium chrysanthemi (and pathovars,varieties), Erwinia carotovora pvs. chrysanthemi/parthenii, Pectobacterium carotovorum pvs. chrysanthemi/parthenni
Worldwide
Widespread
Mexico, China
2022-11-11 19:41:39
Dickeya chrysanthemi strains have been isolated from a number of different hosts in different countries. The list of all susceptible plants after inoculation by Dickeya chrysanthemi would be far longer than the natural host range, and difficult to establish. There is little if any information on seed as a pathway for this pathogen and therefore should not be regulated.
Eriwina chrysanthemi has been reclassified into Pectobacterium spp. and Dickeya spp.
Primarily ornamentals and flowers. Only hosts of Dickeye chrysanthemi or Dickeya zeae are listed below. (Ma, et.al. 2007)
No
ERIWCH-4,ERIWCH-9,ERIWCH-1,
References established carrot as a host. No evidence that seed is a pathway for this pathogen.
ERIWCH-4,ERIWCH-9,ERIWCH-1,
International Seed Federation Regulated Pest List Database. pestlist.worldseed.org Nyon Switzerland
Tower and Beraha. 1976. Core-rot; A bacterial disease of carrot. lant Dis. Rept. 60:357-359
Dickeya chrysanthemi In: Crop Protection Compendium. Wallingford, UK: CAB International. www.cabi.org/cpc.
Burkholderia gladioli pv. allicola
bacterium
Phytomonas allicola, Pseudomonas allicola, Pseudomonas gladioli pv allicola
Israel, Australia, New Zealand, Brazil
Not known to occur
China, Korea
2021-10-26 21:22:13
Primarily isolated from soil or wet onion residues.
The only natural host is onion. Artifical inoculation includes iris, tulip, narcissus and carrot
No
PSDMGA-2,
Carrot is only a host by artificial inoculation.
PSDMGA-2,
International Seed Federation Regulated Pest List Database. pestlist.worldseed.org Nyon Switzerland
Candidatus phytoplasma asteris
phytoplasma
Worldwide
Widespread
2021-11-15 19:27:42
AY phytoplasmas are not seed transmissable and seed is not a pathway in any host.
Wide host range, primarily herbaceous dicots, though strains infect monocots and woody ornamentals
No
PHY01-1,PHY01-2,
Seed is not a pathway for AY phytoplasmas
PHY01-1,PHY01-2,
Pseudomonas syringae pv. maculicola
bacterium
Bacterium maccullochianum,
Bacterium maculicola,
Bacterium maculicola var. japonicum, Phytomonas maculicola,
Pseudomonas maculicola,
Pseudomonas maculicola
Worldwide
Widespread
China
2021-04-26 21:08:56
There is no evidence that seed is a pathway for this pathogen.
Brassicaceae family
No
PSDMMC-3,
No evidence that carrot is a host for this pathogen.
PSDMMC-3,
International Seed Federation Regulated Pest List Database. pestlist.worldseed.org Nyon Switzerland
Alternaria radicina
fungus
Macrosporium daucinum, Pseudostemphylium radicinum, Stemphylium radicinum, Thyrospora radicina
Worldwide
Widespread
Mexico
2022-09-22 18:56:58
This pathogen is not quaranted anywhere in the world. Not reported in MX
Only carrot is known to be a host of this pathogen
Yes
ALTERA-1,ALTERA-2,ISF RPLD,
Seed transmission of this pathogen in carrot is well documented and accepted
ISTA blotter method is the NSHS Standard Method (ALTERA-4)
ALTERA-1,ALTERA-2,ISF RPLD,
Blotter assay, Agar plating, PCR
ALTERA-2,ALTERA-3,ALTERA-4,ALTERA-5,
Hot water, Hot sodium hypochlorite, Thiram soaks
ALTERA-1,ALTERA-2,
Alternaria radicina In: Crop Protection Compendium. Wallingford, UK: CAB International. www.cabi.org/cpc."
Pryor, BM, Davis, RM, Gilbertson RL, 1994 Detection and eradication of Alternaria radicina on carrot seed. Plant Disease 78:452-456
International Seed Federation Regulated Pest List Database. pestlist.worldseed.org Nyon Switzerland
Pryor BM, Gilbertson, RL. 2001 A PCR-based assay for detection of Alternaria radicina on carrot seed. Plant Disease 85; 18-23
Seed Health Testing Method for Alternaria radicina rb 3.1.http://www.seedhealth.org/files/pdf/Vegetable_Crops.pdf
International Rules for Seed Testing. Annexe to Chapter 7: Seed Health Testing Methods. 2014. 7-002a: Blotter method for the detection of Alternaria radicina on Daucus carota (carrot)
Alternaria dauci
fungus
Alternaria brassicae var. dauci, Alternaria porri f.sp. dauci, Alternaria carotae, Macrosporium dauci, Macrosporum carotae, Polydesmus exitiosus var. dauci, Sporidesmium exitiosum var. dauci
Worldwide
Widespread
Mexico
2021-08-26 16:32:46
This pathogen is not quaranted anywhere in the world (ALTEDA-1). This pathogen has been reported in MX.
The main host of Alternaria dauci. is carrot. Other umbielliferous crops are susceptible in nature, celery, parsley, parsnip. Other crops, cabbage, tomato, lettuce, radish and cucumber, were attacked in laboratory studies, but not considered natural hosts.
Yes
ALTEDA-1,ALTEDA-2,ALTEDA-4,ALTEDA-7,
Seed transmission of this pathogen on carrot is well established and accepted.
Blotter incubation is the NSHS Standard Method.
ALTEDA-1,ALTEDA-2,ALTEDA-4,ALTEDA-7,
Blotter incubation
ALTEDA-6,ALTEDA-7,ISTA,
This test has been validated by the ISTA and the NSHS
Thiram soak, Thiram and Iprodione
ALTEDA-1,ALTEDA-2,
Alternaria dauci In: Crop Protection Compendium. Wallingford, UK: CAB International. www.cabi.org/cpc.
Strandberg, JO. 1984. Efficacy of fungicides on persistance of Alternaria dauci on carrot seed. Plant Disease 68:39-42
Strandberg, JO. 1988. Detection of Alternaria dauci on carrot seed. Plant Disease 72;531-534
International Seed Federation Regulated Pest List Database. www.pestlist.worldseed.org. Nyon, Switzerland
Seed Health Testing Method for Alternaria dauci Rb 2.1 National Seed Health System. http://www.seedhealth.org
International Rules for Seed Testing. International Seed Testing Association; www.seedtest.org
Mycocentrospora acerina
fungus
Centrospora acerina, Cercospora acerina
China, Japan, Chile, Bulgaria, France , Netherlands, Norway, Sweden, United Kingdom
WA, AK, CA, GA, NC
Brazil, China
2022-04-13 18:00:16
celery, carrot, lettuce, caraway. Weeds are common hosts
No
MYCCAC-5,
Seed is not known to be a pathway. No references found indicating seed is a pathway.
MYCCAC-5,
International Seed Federation Regulated Pest List Database. www.pestlist.worldseed.org Nyon, Switzerland
Leptosphaeria libanotis
fungus
Plenodomus libanotidis, Phoma sanguinolenta, Phoma rostrupii
Europe
Not known to occur
China, Korea
2021-04-20 19:42:39
carrot
No
LEPTLB-2,RICH ISTA,
No evidence that seed is a pathway for this pathogen. There were no references found indicating that seed is a pathway for Leptosphaeria libanotis. Seed has been implicated as a pathway for its asexual stage, Phoma rostrupii, in Russia and surrounding areas (RICH ISTA). However, no original references have been found to support these claims. Until original references are found, these statements are considered unsupported and seed is not considered to be a pathway for this fungus in carrot.
LEPTLB-2,RICH ISTA,
Broad bean wilt virus
virus
Broad bean wilt fabavirus, Catalpa chlorotic leaf spot virus, Nasturtium ringspot virus, Nasturtium white spot virus, Pea streak virus, Patchouli mild mosaic virus, Patchouli mild mottle virus, Petunia ringspot virus, Tropaeolum ringspot virus, Plantago II virus
Worldwide
FL, MN, NY, OH, VT, SC, WI
Mexico
2021-04-01 18:06:48
MX Organic List for beet and spinach. Only artificial inoculation of faba bean has resulted in possible seed transmission. Not known to be common in nature. BBWV is not known to be seed borne in other crops.
Broad bean wilt virus has been reported in natural infections of 180 species of 41 plant families and thus has a very extensive natural host range. Occurs primarily in Eurpoe and Asia
No
BBWV00-1,BBWV00-5,DVP WEB,
Seed is not known to be a pathway. Very little data verifying carrot as a host.
BBWV00-1,BBWV00-5,DVP WEB,
Tomato spotted wilt virus
virus
Tomato spotted wilt tospovirus, Tomato spotted wilt virus group
Worldwide
Widespread
2023-08-21 17:00:09
Seed is not a pathway for Tospoviruses, including Tomato spotted wilt virus
Wide host range. Over 800 plant species are known hosts. Primarily ornamentals,flowers. No evidence that small grains or corn are hosts.
No
TSWV00-1,TSWV00-2,TSWV00-3,
Seed is not a pathway for Tospoviruses, including Tomato spotted wilt virus.
TSWV00-1,TSWV00-2,TSWV00-3,
Tomato Spotted Wilt Virus. In: Crop Protection Compendium. Wallingford, UK: CAB International. www.cabi.org/cpc.
International Seed Federation Regulated Pest List Database. www.pestlist.worldseed.org
Kormelink R. 2005. Tomato spotted wilt virus Datasheet 412. Description of Plant Viruses Online. 2016. www.dpvweb.net.
Xanthomonas hortorum pv. carotae
bacterium
Bacterium carotae, Phytomonas carotae, Pseudomonas carotae, Xanthomonas campestris pv. carotae, Xanthomonas carotae
Worldwide
Widespread
Mexico
2022-10-11 01:02:27
The period from infection of plant tissue to symptoms is usually short, under favorable conditions. This period may increase when conditions are not favorable, with genetic resistance, other disease or pest pressure, or physiological stress. Symptoms may also be inconspicuous, masked, or atypical under similar conditions or stress. When symptoms are present, confirm the causal agent with laboratory diagnoses. Prolonged periods of latency resulting in asymptotic plants has not been documented for this pathogen. Literature showing that random sampling of apparently healthy plants to detect latent populations of this pathogen has not been found.
carrot, coriander
Yes
XANTCR-3,XANTCR-2,XANTCR-8,
Seed as a pathway well established and accepted. Populations of bacteria in seed samples must be high to cause disease losses.
The seed wash method is a standard method of the NSHS
XANTCR-3,XANTCR-2,XANTCR-8,
Seed wash, PCR
XANTCR-3,XANTCR-5,XANTCR-7,
The seed wash method is the standard method of the NSHS.
Hot water seed treatment
XANTCR-4,XANTCR-8,
Kuan T-L, Minsavage GV, Gabrielson RL, 1985. Detection of Xanthomonas campestris pv. carota in carrot seed. Plant Disease, 69:758-760
Chupp Ch, Sherf AF, 1960. Vegetable diseases and their control. New York, USA: The Ronald Press Company
International Seed Federation Regulated Pest List Database. pestlist.worldseed.org Nyon Switzerland
Umesh K, Davis R, Gilbertson R, 1996. Seed contamination thresholds associated with occurrence of bacterial blight of carrots and development of a DNA based detection method for Xanthomonas campestris pv. carotae. Phytopathology, 86: S11
Xanthomonas hortorum pv carotae Seed Health Testing Method Rb 1.1. 2015. The National Seed Health System (NSHS) www.seedhealth.org
Ark PA, Gardner MW, 1944. Carrot bacterial blight as it affects the roots. Phytopathology, 34:415-420
Streptomyces scabiei, Streptomyces ipomoceae, Streptomyces acidiscabies, Streptomyces stelliscabiei
bacterium
Streptomyces scabiei is worldwide, other Streptomycese spp. are more localized.
Streptomyces cabiei is widespread in the United States, other Streptomyces spp. are more localized.
Sudan
2022-09-13 18:33:51
There are many beneficial Streptomyces spp. that suppress pathogens or enhance nodulation in alfalfa. There are no known Streptomyces pathogens of alfalfa. No reports of any Streptomyces in Sudan
Streptomyces scabiei is primarily a pest of potato, but is found on other root crops such as carrot, parsnip, radish and beet. Streptomyces ipoomceae is a pathogen of sweet potato, only. Streptomyces acidiscabies and Streptomyces stelliscabiei are pests of potato only. There are no known Streptomyces pathogens of alfalfa. Only hosts of Streptomyces scabiei reported below.
No
CABI CPC,
Seed is not known to be a pathway. Carrot is a minor host of this pathogen.
CABI CPC,
Crop Protection Compendium. Wallingford, UK: CAB International. www.cabi.org/cpc.
Phytophthora medicaginis
fungus
Phytophthora megasperma, Phytophthora megasperma f.sp. medicaginis, Phytophthora sojae f.sp. medicaginis
Japan, Pakistan, Turkey, Argentina, S. Africa, Canada, Australia, Europe
Widespread
China
2022-06-27 17:07:24
This pathogen has not been reported in China
lucerne/alfalfa, chickpea
No
PHYTME-1,
Not a host. A host by artificial inoculation only. No references found verifying that domestic carrot is a natural host.
PHYTME-1,
Phytophthora medicaginis In: Crop Protection Compendium. Wallingford, UK: CAB International. www.cabi.org/cpc.
Arabis mosaic virus
virus
Arabis mosaic nepovirus, Ash ring and line pattern virus, Forsythia yellow net virus, Hop nettlehead virus,Jasmine yellow blotch virus, Raspberry yellow dwarf virus, Rhabarber mosaik virus (rhubarb mosaic virus), Rhubarb mosaic virus
Worldwide
CT, FL, MI, MN, MO, NE, NY, OH, SC
Mexico, China, Korea, Brazil, Thailand
2022-10-08 00:16:31
This virus has been reported in Mexico, China (CABI, 2017), but natural spread may be limited to EU (Murant, 1974).
Wide host range including many vegetable, agronomic and fruit species
No
ARMV00-1,ARMV00-2,ARMV00-7,
There is no evidence that seed is a pathway for this crop.
ARMV00-1,ARMV00-2,ARMV00-7,
Arabis Mosaic Virus. In: Crop Protection Compendium. Wallingford, UK: CAB International. www.cabi.org/cpc.
Neergaard, P. 1977. Seed Pathology Vol. 1. The MacMiilian Press.
International Seed Federation Regulated Pest List Database. www.pestlist.worldseed.org. Nyon Switzerkand
Tobacco rattle virus
virus
Aster ringspot virus, Belladonna mosaic virus,Paeony mosaic virus, Paeony ringspot virus,Peony mosaic virus, Peony ringspot virus,Potato corky ringspot virus, Potato stem mottle virus,Ratel virus, Spinach yellow mottle virus, Tabakmauche Virus, Tabakstreifen und Kra, Tobacco rattle tobravirus,Tulip white streak virus
Worldwide
Widespread
Korea
2021-04-22 17:52:01
Transmitted in nature primarily by trichodorus and paratrichodorus nematodes. Seed is only known to be a pathway in some weed species.
Extensive host range
No
TRV000-1,TRV000-3,
Carrot is a known host of Tobacco rattle virus. No references were found indicating seed is a pathway for this virus.
TRV000-1,TRV000-3,
Tobacco necrosis virus
virus
Bean stipple streak virus, Chenopodium necrosis necrovirus, Cucumber systemic necrosis virus, Euonymus mosaic virus, Strawberry necrotic rosette virus, Tobacco necrosis necrovirus, Tulip Augusta disease virus, Tulip necrosis virus
South Africa, Japan, India, China, Turkey, Europe, UK, Canada, Australia, New Zealand, Brazil
CA, IL, NE, NY, UT, WI
Korea
2021-04-22 16:28:24
Tobacco necrosis virus probably worldwide, but often overlooked because it infects roots only. Seed is not known to be a pathway for this virus.
carrot, bean, cucumber, tomato, beet, potato, tulip
No
TNV000-2,TNV000-3,
Seed is not known to be a pathway.
TNV000-2,TNV000-3,
CABI, 2020
Pseudomonas cichorii
bacterium
Bacterium cichorii, Bacterium endiviae, Bacterium formosanum, Chlorobacter cichorii, Phytomonas cichorii, Phytomonas endiviae,Pseudomonas endiviae Kotte, Pseudomonas formosanum, Pseudomonas papaveris, Pseudomonas papaveris
Worldwide
Widespread, localized outbreaks
Thailand
2022-12-01 19:43:10
Pseudomonas cichorii has been shown to survive on artificially inoculated lettuce seeds. Many references have reported P. cichorii as seed transmitted, but despite field observation of early infections in hosts, there is no experimental data on transmission by seed.
Primarily lettuce, endive and other Asteraceae species.
No
PSDMCI-2,
Not proven to be a host. Several references indicated the pathogen was isolated in rotting roots, but pathogenicity was not proven.
PSDMCI-2,
International Seed Federation Regulated Pest List Database. pestlist.worldseed.org Nyon, Switzerland
Gibberella avenacea
fungus
Fusarium avenaceum, Fusarium avenaceum f.sp. fabae, Fusarium avenaceum subsp. aywerte, Fusarium roseum var. avenaceum
Worldwide, primarily in temperate regions.
Widespread
Thailand
2022-11-22 19:27:52
One of many Fusaria, Gibberella's that may contaminate kernels.
Primarily a grain and clover pathogen with a wide host range.
No
GIBBAV-2,GIBBAV-4,
G. avenacea causes root rots in carrots but there is no evidence that seed is a pathway in carrot.
GIBBAV-2,GIBBAV-4,
Pythium mamillatum
fungus
Globisporangium mamillatum
British Columbia, China
Not known to occur
Korea
2021-04-21 17:48:25
carrot
No
PYTHMA-2,
No references found indicating seed is a pathway. The importance of this pathogen in carrot is unknown.
PYTHMA-2,
International Seed Federation Regulated Pest List Database. www.pestlist.worldseed.org. Nyon, switzerland
Radopholus similis
nematode
Anguillulina acutocaudatus, Anguillulina biformis, Anguillulina granulosa, Anguillulina similis, Radopholus acutocaudatus, Radopholus biformis, Radopholus citrophilus, Radopholus granulosus, Radopholus similis citrophilus, Rotylenchus similis, Tetylenchus granulosus, Tylenchorhynchus acutocaudatus, Tylenchus biformis, Tylenchus granulosus, Tylenchus similis
Worldwide
FL, HI, LA, TX,
Korea
2021-04-21 17:56:41
R. similis is a migratory endoparasitic species which completes its life cycle within the root cortex and tissues of corms and tubers. Primarily found in tropical climates of the world. Crops in temperate climates are not a risk.
carrot, tomato, corn, tropical fruit bearings plants, banana, coffee, spices, yam.
No
RADOSI-1,RADOSI-2,
Seed is not known to be a pathway for this nematode. Reported only on wild carrot.
RADOSI-1,RADOSI-2,
Meloidogyne fallax
nematode
Belgium, France, Germany, Netherlands, Sweden, Switzerland, England, N. Ireland, Australia, New Zealand
CA
Korea
2021-04-26 18:32:30
Seed is not known to be a pathway for Meloidogyne spp. root knot nematodes (MELGFA-2)
carrot, potato. Minor pest of other crops.
No
MELGFA-1,MELGFA-3,MELGFA-2,
Seed is not known to be a pathway.
MELGFA-1,MELGFA-3,MELGFA-2,
Meloidogyne fallax. In: Crop Protection Compendium. Wallingford, UK: CAB International. www.cabi.org/cpc. In:
International Seed Federation Regulated Pest List Database. pestlist.worldseed.org Nyon Switzerland
Lammers, W., Karssen, G., Jellema, P., Baker, R., Hockland, S., Fleming, C. and Turner, S. (2006). Meloidogyne minor Pest Risk Assessment. 08-14648 PPM Point 7.3. Plant Protection Services (NL) and Central Science Laboratory (UK). 52pp. (https://www.eppo.int...)
Nacobbus aberrans
nematode
Anguillulina aberrans, Nacobbus batatiformis, Nacobbus bolivianus, Nacobbus serendipiticus, Nacobbus serendipiticus bolivianus, Pratylenchus aberrans
Egypt, Argentina, Bolivia, Chile, Ecuador, Peru, Mexico
AR, CO, KS, MT, NE, SD, UT, WY
Korea
2023-08-21 22:10:17
Seed is not known to be a pathway for this nematode in any host.
potato, vegetables
No
NACOBA-1,
Seed is not known to be a pathway for this nematode in any host.
NACOBA-1,
Nacobbus aberrans. In: Crop Protection Compendium. Wallingford, UK: CAB International. www.cabi.org/cpc.
Meloidogyne chitwoodi
nematode
Mozambique, South Africa, Belgium, Turkey, France, Germany, Italy, Netherlands, Portugal, Sweden, Canada, Mexico, Argentina
CA, CO, ID, NV, MN, OR, WA, TX, UT, VA, WY
Korea
2021-04-26 18:30:50
Seed is not known to be a pathway for Meloidogyne spp. root knot nematodes (MELGCH-2)
potato primarily, alfalfa, carrot, tomato, Poeaceae grasses. In greenhouse studies: pea, corn, wheat, barley, oat and sugarbeet.
No
MELGCH-1,MELGCH-2,MELGCH-3,
Seed is not known to be a pathway
MELGCH-1,MELGCH-2,MELGCH-3,
Meloidogyne chitwoodii. In: Crop Protection Compendium. Wallingford, UK: CAB International. www.cabi.org/cpc.
Lammers, W., Karssen, G., Jellema, P., Baker, R., Hockland, S., Fleming, C. and Turner, S. (2006). Meloidogyne minor Pest Risk Assessment. 08-14648 PPM Point 7.3. Plant Protection Services (NL) and Central Science Laboratory (UK). 52pp. (https://www.eppo.int...)
International Seed Federation Regulated Pest List Database. pestlist.worldseed.org Nyon Switzerland
Xiphinema diversicaudatum
nematode
Dorylaimus diversicaudatus, Dorylaimus elongatus apud, Longidorus diversicaudatus, Xiphinema diversicaudatum, Xiphinema amarantum, Xiphinema basiri apud, Xiphinema israeliae apud, Xiphinema paraelongatum, Xiphinema sahelense apud, Xiphinema seredouense
Europe, Australia, New Zealand, Canada, India, Turkey, Morocco, South Africa
CA
Korea
2021-04-22 18:13:59
Found primarily in pasture and woodland areas. May spread nepoviruses. Seed is not known to be a pathway for dagger nematodes.
Wide host range
No
XIPHDI-2,
Seed is not known to be a pathway for dagger nematodes.
XIPHDI-2,
Xiphinema diversicaudatum. In: Crop Protection Compendium. Wallingford, UK: CAB International. www.cabi.org/cpc. In:
Alternaria longipes
fungus
Alternaria brassicae var. tabaci, Alternaria tenuis f.sp. tabaci, Macrosporium longipes
Worldwide
Widespread
Korea
2022-09-22 18:48:21
Korea lists this pathogen as Alternaria spp. This pathogen has been reported in Korea (Farr and Rossman, 2020). Tobacco is the only economic host of this pathogen. Occasional reports on some vegetables. Seed is not known to be a pathway (CABI, 2020)
tobacco
No
ALTELO-2,ALTELO-3,
Not a host. Vintel, et.al., 2002 identified this pathogen on carrot fields infected with A. dauci and did not prove pathogenicity.
ALTELO-2,ALTELO-3,
Farr, D.F., and Rossman, A.Y. Fungal Databases, Systematic Mycology and Microbiology Laboratory, ARS, USDA. 2020, http://nt.ars-grin.gov/fungaldatabases/
Vintal H, Shtienberg D, Shlevin E, and Ben-Noon E. 2002. First report of leaf blight caused by Alternaria longipes on carrots in Israel. Plant Disease 86: 186
Alternaria alternata
fungus
Alternaria tenuis, Alternaria tenuissima, many others
Worldwide
Widespread
Korea
2022-09-13 19:18:44
Korea listed this pathogen as Alternaria spp. A. alternata, A. tenuis and A. tenuissima have all been reported in Korea. A. alternata has often been found on seed in laboratory testing. There is little evidence of seed transmission. This fungus is ubiquitous and often of minor importance in its hosts.
Wide host range
No
ALTEAL-10,ALTEAL-11,ALTEAL-12,
Pathway not proven. A. alternata is a weak pathogen of carrot and can be found on carrot seed. No references were found on seed transmission of the fungus. A. alternata can produce toxins that can have detrimental effects on germination in the laboratory, but no references were found indicating this happens in the field. A. dauci and A. radicini are more important seed borne pathogens of carrot.
ALTEAL-10,ALTEAL-11,ALTEAL-12,
Blotter incubation
ALTEAL-30,
Blotter incubation assays (NSHS, 2020) used for A. dauci and A. radicini should detect A. alternata on seed.
Seed treatments; Hot water treatments.
See A. dauci and A. radicini. Seed treatments and disinfectants used for these pathogens should also be effective for A. alternata.
Lima, Cristina Batista de, Rentschler, Luana Lopes Assumpção, Bueno, João Tavares, & Boaventura, Ana Cláudia. (2016). Plant extracts and essential oils on the control of Alternaria alternata , Alternaria dauci and on the germination and emergence of carrot seeds ( Daucus carota L.). Ciência Rural, 46: 764-770. https://dx.doi.org/10.1590/0103-8478cr20141660
Tylkowska, K.; Grabarkiewicz-Szczesna, J.; Iwanowska, H. 2003. Production of toxins by Alternaria alternata and A. radicina and their effects on germination of carrot seeds. Seed Science and Technology 31:309-316
Konstantinova P, Bonnants PJ, van Gent-Pelzer MP, van der Zouwen P and van den Bulk R. 2002. Development of specific primers for detection and identification of Alternaria spp. in carrot material by PCR and comparison with blotter and plating assays. Mycol. Res. 106: 23–33
United Stated Department of Agriculture, Animal and Plant Health Protection Service National Seed Health System (USDA-APHIS NSHS) www.seedhealth.org
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