Brassicaceae family
cabbage, broccoli, cauliflower, brussel sprouts, rapeseed, turnip, chinese cabbage, mustard, radish
2 Related Pests
Phymatotrichopsis omnivora
fungus
Hydnum omnivorum, Ozonium auricomum, Ozonium omnivorum, Phymatotrichopsis omnivorum, Phymatotrichum omnivorum
North America: Mexico, USA
AZ, AK, CA, HI, LA, NV, NM, OK, TX, UT
China
2025-08-05
Phymatotrichopsis omnivora is a soil-borne fungus primarily found in warm, alkaline soils, which can lead to sudden plant death and root decay. The pathogen spreads through soil and root contact, survives for years via sclerotia, and is very difficult to manage once established.
Mainly affects cotton but can infect over 2,000 dicot species, causing major losses in crops and ornamentals, while monocots are largely immune.
No
CABI CPC, EPPO, PHMPOM-4
Seed is not considered a pathway for any of its hosts.
CABI CPC, EPPO, PHMPOM-4
Crop Protection Compendium. Wallingford, UK: CAB International. www.cabi.org/cpc.
OEPP/EPPO Global Database - European and Mediterranean Plant Protection Organization
Uppalapati, S. R., Young, C. A., Marek, S. M., & Mysore, K. S. (2010). Phymatotrichum (cotton) root rot caused by Phymatotrichopsis omnivora: retrospects and prospects. Molecular plant pathology, 11(3), 325-334.
Alternaria alternata
fungus
Alternaria tenuis, Alternaria tenuissima, many others
Worldwide
Widespread
Korea
2022-09-13
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-3, ALTEAL-7
Pathway not proven. Many species of Brassicaceae have been reported as hosts for A. alternata, though A. brassicaeae and A. brassicola are more common and economically important. There is no evidence of seed transmission and A. alternata is primarily considered opportunistic (ALTEAL-7).
ALTEAL-3, ALTEAL-7
Search the database