Solanum tuberosum
potato
3 Related Pests
Potato virus T
virus
Potato T capillovirus, Potato T trichovirus
Argentina, Bolivia, Costa Rica, Peru
Not known to occur
Mexico
2024-03-15 17:13:45
PVT is pollen- and seed-borne and is transmitted by inoculation of sap and mechanically through equipment.
Main: Potato. Other: Oca, Ulluco.
No
PVT000-2,CABI CPC,PVT000-3,PVT000-4,PVT000-5
PVT is shown to be pollen- and seed-borne and is transmitted by inoculation of sap. Healthy potato plants pollinated with pollen from infected plants showed no virus transmission (PVT000-3). Documentation shows transmission via tubers but no evidence shows seed as a natural pathway. EPPO notes it may be spread by true potato seed (TPS) through the movement of potato germplasm, although the significance of this in practice is less clear since it has only been rarely reported infecting gene bank accessions. Multiple sources note PVT is readily transmitted mechanically.
PVT000-2,CABI CPC,PVT000-3,PVT000-4,PVT000-5
Cultural, Mechanical
PVT000-5
Ensure parent plants used to produce TPS are free from PVT
Salazar LF, Harrison BD, 1978. Host range, purification and properties of potato virus T. Annals of Applied Biology, 89:223-235
Crop Protection Compendium. Wallingford, UK: CAB International. www.cabi.org/cpc.
Jones, R. C. (1982). Tests for transmission of four potato viruses through potato true seed. Annals of Applied Biology, 100(2), 315–320. https://doi.org/10.1111/j.1744-7348.1982.tb01944.x
Russo, M., Rubino, L., De Stradis, A., & Martelli, G. P. (2008). The complete nucleotide sequence of potato virus t. Archives of Virology, 154(2), 321–325. https://doi.org/10.1007/s00705-008-0300-x
EPPO (2024) Potato virus T. EPPO datasheets on pests recommended for regulation. https://gd.eppo.int (accessed 2024-03-15)
Potato virus Y
virus
brinjal mosaic virus, datura 437 virus, Marmor upsilon, potato acropetal necrosis virus, potato severe mosaic virus, potato virus 20, potato Y potyvirus, Solanum virus 2, Tabakrippenbraune Virus, tobacco vein banding, mosaic virus, tobacco veinal necrosis virus, tobacco vein-banding virus
Worldwide
Widespread
Mexico
2024-02-16 17:13:36
PVY is transmitted in a non-persistent manner by more than 50 aphid species. (CABI) PVY is not known to be seed borne in any host, including true potato seed. PVY is best controlled by the production, propagation and distribution of elite virus-free planting stocks, nucleus stocks of which are maintained under stringent conditions to prevent infection.
Primarily potato. Reported in tomato and pepper.
No
CABI CPC
PVY has not been reported in true seed, but transmission can occur readily in potato tubers. Incidence in seed potato tubers can be very high in the absence of certification schemes or with tolerant cultivars.
CABI CPC
Crop Protection Compendium. Wallingford, UK: CAB International. www.cabi.org/cpc.
Potato spindle tuber viroid
viroid
potato gothic virus, potato spindle viroid, spindle tuber viroid, tomato bunchy top viroid
Americas: Mexico, Costa Rica, Dominican Republic, Mexico, Peru, Venezuela. Africa: Egypt, Ghana, Kenya, Nigeria, Uganda. Asia: wide spread. Europe: Austria, Belarus, Belgium, Croatia, Czech Republic, Germany, Greece, Italy, Malta, Montenegro, Netherlands, Russia, Slovenia, Spain, Switzerland, UK, Ukraine. Australia.
pest eradicated (EPPO)
Brazil, China, Mexico, Thailand, The Republic of Korea
2023-12-08 15:36:46
Successful eradication of the viroid has been reported for the USA and Canada. PSTVd-7 data shows little evidence of asymptomatic plants and testing of asymptomatic plants did not increase detection of Potato spindle tuber viroid significantly, if at all. Concluded that inspection for Potato spindle tuber viroid symptoms was a "good aid" in determining if a tomato crop was infected with the viroid.
Mainly solanaceous crops, capsicum, and ornamentals
Yes
CABI CPC,EPPO,PSTVd-15,PSTVd-12,PSTVd-13
Potato is considered the main host of PSTVd. It is reported to be transmitted via true potato seed (TPS) but is reported to primarily spread mechanically.
CABI CPC,EPPO,PSTVd-15,PSTVd-12,PSTVd-13
RT-PCR
CABI CPC,EPPO,PSTVd-14
Mechanical,
PSTVd-13
Proper sanitation procedures are important to prevent mechanical transmission. Ensure use of healthy seeds.
Crop Protection Compendium. Wallingford, UK: CAB International. www.cabi.org/cpc.
OEPP/EPPO Global Database - European and Mediterranean Plant Protection Organization
Fernow KH, 1967. Tomato as a test plant for detecting mild strains of potato spindle tuber virus. Phytopathology, 57:1347-1352.
Benson AP, Singh RP, 1964. Seed transmission of potato spindle tuber virus in tomato. American Potato Journal, 41:294.
Hunter DE, Darling DH, Beale WL, 1969. Seed transmission of potato spindle tuber virus. American Potato Journal, 46:247-250.
Shamloul AM, Hadidi A, Zhu SF, Singh RP, Sagredo B, 1997. Sensitive detection of potato spindle tuber viroid using RT-PCR and identification of a viroid variant naturally infecting pepino plants. Canadian Journal of Plant Pathology, 19(1):89-96; 36 ref.
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