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Microdochium panattonianum (anthracnose of lettuce )
Microdochium panattonianum
anthracnose of lettuce
Ascochyta suberosa, Didymaria perforans, Marssonia panattoniana, Marssonia perforans, Marssonina panattoniana
Africa: Libya, Mauritius; Asia: India, Indonesia, Iran, Japan, Lebanon, Philippines, Turkey; Europe: Austria, Bulgaria, Cyprus, Denmark, France, Germany, Greece, Hungary, Ireland, Italy, Latvia, Netherlands, Romania, Serbia, Sweden, Switzerland, UK; North America: Canada, USA; Oceania: Australia, New Zealand.
AK, CA, FL, ID, MI, NC, OR, TX, WA
2025-12-26
fungus
-
Main: endive, lettuce
MARSPA
Microdochium panattonianum is a fungal pathogen that overwinters in soil or crop debris, surviving up to 4 years, and can also persist in weed hosts. The disease mainly occurs during prolonged wet periods, with optimal infection at 68–72°F, spreads via spores from foliar lesions by splashing water, and affects all lettuce types. However, Romaine and head lettuce are most susceptible.
Crops
Cichorium endivia
endive
No
No references found indicating that endive seed is a pathway.
Production of lettuce seed in dry climates may be applied to endive seed production.
2025-12-26 13:24:33
Lactuca sativa
lettuce
No
MARSPA-2, MARSPA-3, MARSPA-4, CABI CPC, MARSPA-6, MARSPA-7, MARSPA-8, MARSPA-9
Microdochium panattonianum, has been evaluated for seed transmission using artificially inoculated seed and seed from infected plants. Neither approach produced infected seedlings, and because lettuce seed is typically produced in dry climates unfavorable for the pathogen, seed is not considered a pathway. Other sources of inoculum, such as soilborne microsclerotia and infected crop debris, are more important in disease epidemiology.
No
No sources indicate that a seed test has been developed for M. panattonianum.
Cultural
Produce lettuce seed in dry climates where Microdochium panattonianum is not disease problem.
CABI CPC
2025-12-26 14:01:24
MARSPA-2
Farr, D.F. and Rossman, A.Y. Fungal Databases, Systematic Mycology and Microbiology Laboratory, ARS, USDA. 2018, http://nt.ars-grin.gov/fungaldatabases/
MARSPA-3
Davis, R.M., Subbarao, K.V., Raid, R.N., and Kurtz, E.A. 1997. Compendium for lettuce diseases. American Phytopathological Society: St. Paul, Minnesota (USA).
MARSPA-4
Galea VJ, Price TV, 1988. Infection of lettuce by Microdochium panattonianum. Transactions of the British Mycological Society, 91:419-425
CABI CPC
Crop Protection Compendium. Wallingford, UK: CAB International. www.cabi.org/cpc.
MARSPA-6
Horita, H., Yasuoka, S., Ozawa, S., & Sato, M. (2001). Anthracnose of lettuce caused by Microdochium panattonianum in Hokkaido. (Abstract)
MARSPA-7
Patterson, C.L., and Grogan, R.G. (1991). Role of microsclerotia as primary inoculum of Microdochium panattonianum, incitant of Lettuce Anthracnose. Plant Disease 75, 134-138.
MARSPA-8
Ochoa, O., Delp, B. and Michelmore, R.W. (1987). Resistance in Lactuca spp to M. panattoninia (lettuce antracnose). Euphytica 36, 609-614.
MARSPA-9
Blancard, D., Lot, H. and Maisonneuve, B. (2006). A colour atlas of diseases of lettuce and related salads crops: observation, biology and control. Wiley. ISBN: 978-1-84076-050-7. 376 pages.
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