Alternaria longipes
brown spot of tobacco
Alternaria brassicae var. tabaci, Alternaria tenuis f.sp. tabaci, Macrosporium longipes
Africa: Angola, Congo, Egypt, Kenya, Madagascar, Malawi, Mauritius, Morocco, Mozambique, Reunion, Somalia, South Africa, Sudan, Tanzania, Uganda, Zambia, Zimbabwe; Asia: Afghanistan, Bangladesh, China, Hong Kong, India, Indonesia, Israel, Japan, Malaysia, Nepal, North Korea, Oman, Pakistan, Singapore, Taiwan, Thailand, Turkey; Europe: Belgium, Bulgaria, Germany, Hungary, Italy, Netherlands, Poland, Portugal, Romania, Spain; North America: Canada, Dominican Republic, Haiti, Jamaica, Mexico, Panama, Puerto Rico, USA; Oceania: Australia, Fiji, New Zealand, Papua New Guinea; south America: Argentina, Bolivia, Brazil, Colombia, Venezuela.
CT, FL, GA, MN, NC, OR, PA, SC, VA
2025-10-29
fungus
Korea
Main: tobacco; Other: sunflower, potato
ALTELO
Alternaria longipes primarily infects tobacco, the only host of economic concern, causing brown leaf spot and significant foliar damage. It is transmitted via wind, rain splash, and contaminated plant debris, producing dark spores that thrive in warm, humid conditions. Seed is not known to be a pathway.
Crops
Capsicum annuum
pepper
No
ALTELO-1, ALTELO-2
Pepper has only been referenced as a host from Turkey in the 1930's (Farr and Rossman, 2020). There have been no other reports of pepper as a host.
2025-10-30 10:25:06
Daucus carota
carrot
No
ALTELO-2, ALTELO-3, CABI CPC
Vintel, et.al., 2002 identified this pathogen on carrot fields infected with A. dauci and did not prove pathogenicity. It is likely not a host.
2025-10-30 10:27:15
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
Crop Protection Compendium. Wallingford, UK: CAB International. www.cabi.org/cpc.
Helianthus annuus
sunflower
No
ALTELO-2, CABI CPC
CABI (2020) lists sunflower as a non-economical host. However, no other reference was found indicating sunflower is a host. Seed is not known to be a pathway for this pathogen.
2025-10-30 10:34:32
Solanum lycopersicum
tomato
Not a host
ALTELO-1
Tomato has only been inoculated in the laboratory. No reports of natural infections of the pathogen.
2025-10-30 10:35:19
Alternaria longipes. In: Crop Protection Compendium. Wallingford, UK: CAB International. www.cabi.org/cpc.
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