Dianthus spp.
carnation
4 Related Pests
Rhodococcus fascians
bacterium
Corynebacterium fascians, Bacterium fascians, Phytomonas fascians, Pseudobacterium fascians, Rhodococcus rubropertinctus
Europe, North America, Central America, Australia, New Zealand, Iran, Russia, Egypt, Colombia
Widespread
Brazil, Thailand
2023-08-21
Though found in many US states, the pathogen is usually restricted and localized. Probably Worldwide, though not reported. Disease outbreaks are sporadic and usually related to poor sanitation. Bulbs, floral and greenhouse crops most susceptible to disease outbreaks. No reports of seed as a pathway in vegetables and agronomic crops.
Primarily a pest of ornamentals, woody ornamentals and floowers. Vegetables and agronomic crops reported susceptible to the bacterium are listed below. Transmits primarily through propagation.
No
CORBFA-3,CORBFA-1,
No evidence that seed is a pathway
CORBFA-3,CORBFA-1,
Septoria dianthi
fungus
Worldwide
OH, AL, IA, MI, NY, CA, HI, MS, TX, NC, NJ
Korea
2024-08-19
Septoria dianthi causes small circular brown spots with purplish brown borders on the leaves and stems of the plants. Small black specks may occur and lead to leaf deformation, necrosis, and scorching appearance. It can survive on infected plant debris. Once spores are released, they can be dispersed through wind, rain, and water.
Dianthus
No
SEPTDN-1,SEPTDN-2,SEPTDN-3
No references found indicating seed is a pathway.
SEPTDN-1,SEPTDN-2,SEPTDN-3
Farr, D.F., and Rossman, A.Y. Fungal Databases, Systematic Mycology and Microbiology Laboratory, ARS, USDA. 2020, http://nt.ars-grin.gov/fungaldatabases/
Michigan State University, Plant & Pest Diagnostics, Septoria leaf spot. https://www.canr.msu.edu/resources/septoria-leaf-spot
Trujillo, E. E., Shimabuku, R., Hashimoto, C., & Hori, T. M. (1989). Diseases and pests of carnation.
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
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-1,ERIWCH-14,
There is no evidence that seed is a pathway. No references found. Primarily spread by vegetative plant material.
ERIWCH-1,ERIWCH-14,
Dickeya chrysanthemi In: Crop Protection Compendium. Wallingford, UK: CAB International. www.cabi.org/cpc.
Daughtrey, M.L., et.al. 2018. Soft Rot Caused by Pectobacterium and Dickeya spp. In, Compendium of Bedding Plant Diseases and Pests. A. R. Chase, M. L. Daughtrey and R. A. Cloyd, Eds. The American Pathological Society, St. Paul., MN USA
Erwinia rhapontici
bacteria
Aplanobacter rhapontici, Bacillus rhapontici, Bacterium rhapontici, Erwinia carotovora var. rhapontici, Pectobacterium rhapontici, Phytomonas rhapontici, Pseudobacterium rhapontici,Xanthomonas rhapontici
Asia, Europe, Canada, Mexico, New Zealand
Western and Midwest states
Brazil
2023-04-20
Brazil lists this as Pectobacterium rhapontici.
Primarily rhubarb and wheat. Reported on a few vegetables.
No
CABI CPC,
No evidence that seed is a pathway. No references found indicating seed is a pathway.
CABI CPC,
Crop Protection Compendium. Wallingford, UK: CAB International. www.cabi.org/cpc.
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