Impatiens spp.
Impatiens
7 Related Pests
Impatiens necrotic spot virus
virus
Tomato spotted wilt tospovirus, Impatiens strain
Africa: Egypt, Uganda; Asia: China, Iran, Japan, South Korea; Europe: Belgium, Bosnia and Herzegovina, Bulgaria, Czechia, Finland, France, Germany, Greece, Gurnsey, Hungary, Italy, Lithuania, Netherlands, North Macedonia, Poland, Portugal, Serbia, Slovenia, Spain, Sweden, UK; North America: Canada, Costa Rica, Guatemala, Mexico, Panama, USA; Oceania: Australia, New Zealand; South America: Chile, Colombia.
Widespread
Korea
2024-09-07
The virus is closely related to Tomato spotted wilt virus and a member of the Tospovirus group of viruses which are thrip transmitted. Seed transmission is unlikely and not reported for any host.
Wide host range. Main: Impatiens. Other: many ornamentals and vegetables.
No
INSV00-2, CABICPC
Seed is not known to be a pathway.
INSV00-2, CABICPC
Difficult to control. Field control must consider the virus and the vector for success.
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-1, CORBFA-3
Listed as a potential host, not common. No evidence that seed is a pathway.
CORBFA-1, CORBFA-3
Ralstonia solanacearum
bacterium
Bacillus musae, Bacillus musarum, Bacillus nicotianae, Bacillus sesami, Bacillus solanacearum, Bacterium solanacearum, Bacterium solanacearum var. asiatica, Bacterium solanacearum var. asiaticum, Burkholderia solanacearum, Chromobacterium nicotianae, Erwinia nicotianae,
Erwinia solanacearum, Phytobacterium solanacearum, Phytomonas ricini, Phytomonas solanacearum, Phytomonas solanacearum var. asiatica, Pseudomonas batatae, Pseudomonas ricini,
Pseudomonas solanacearum, Pseudomonas solanacearum var. asiatica, Pseudomonas tectonae,
Xanthomonas solanacearum, Xanthomonas solanacearum var. asiatica
Worldwide
AL, AR, CT, DE, FL, GA, HI, IL, IN, LA, MI, NH, NJ, NY, NC, PA, SC, SD, VA, WI
China
2025-08-13
Ralstonia solanacearum spreads mainly through infected vegetative planting material, contaminated soil or water, root contact, mechanical injury, and sometimes insect vectors, with wild hosts serving as reservoirs that can contaminate irrigation sources. True seed infection is rare and confirmed in peanut, while seed contamination in other crops such as tomato, pepper, eggplant, and soybean has been reported but not substantiated, making seed a minor pathway compared with other transmission routes. Pest is on USDA Plant Protection and Quarantine Select Agents and Toxins list.
Over 250 species, particularly tropical and subtropical crops, are susceptible to races of the R. solanacearum species complex, with tomato, tobacco, aubergine, potato, banana, plantain, and Heliconia being the most significant worldwide, while other hosts include Anthurium spp., groundnut, Capsicum annuum, cotton, rubber, sweet potato, cassava, castor bean, and ginger.
No
CABI CPC, RALSSL-8, RALSSL-12
No references found indicating seed is a pathway.
CABI CPC, RALSSL-8, RALSSL-12
Crop Protection Compendium. Wallingford, UK: CAB International. www.cabi.org/cpc.
Hudelson, B. 2020. Ralstonia Wilt. https://hort.extension.wisc.edu/articles/ralstonia-wilt/
EFSA Panel on Plant Health, 2019. Pest categorisation of the Ralstonia solanacearum species complex. European Food Safety Authority Journal, 17(2), 5618, 28pp.
Tobacco mosaic virus
virus
TMV U1, type, Vulgare or Common strain
tobacco mosaic tobamovirus,
VMT (Virus mosaique de tabac)
Worldwide
Widespread
Mexico
2023-08-21
Broad host range. Cultivated species listed below.
No
Occasionally listed as a host, no evidence that seed is a pathway.
Tobacco ringspot virus
virus
Anemone necrosis virus, Annulus tabaci, Blueberry necrotic ringspot virus, Nicotiana virus 12, Soybean bud blight virus, Tobacco Brazilian streak virus, Tobacco ringspot nepovirus, Tobacco ringspot virus No. 1
Worldwide
Widespread
Korea, China
2025-09-15
Tobacco ringspot virus is a Nepovirus with a broad host range that causes ring spots, mottling, stunting, and yield loss. It is transmitted primarily by dagger nematodes (Xiphinema spp.) in soil, but can also spread through infected seed in certain crops (mainly soybeans), mechanical contact with sap or contaminated tools, and, in some cases, via infected pollen.
Extensive host range includes many weed, fruit and ornamental plant species. Main: peppers, watermelon, melon, cucumber, soybean, tomato.
No
CABI CPC, DPV WEB
No references found indicating Impatien spp. seed is a pathway.
CABI CPC, DPV WEB
Tobacco streak virus
virus
Annulus orae, Asparagus stunt virus, Black raspberry latent ilarvirus, Datura quercina virus, New logan virus, Micotiana virus 8, Nicotiana virus vulaerans, Tobacoo streak ilarvirus, Tracttus orea
Africa: South Africa; Asia: China, India, Iran, Japan; Europe: Denmark, France, Italy, Netherlands, Russia, Serbia, Slovenia, UK; North America: USA; Oceania: Australia, New Zealand; South America: Venezuela
CA, CO, FL, GA, ID, IA, IL, KS, KY, MA, MI, MN, NC, NJ, NY, OH, OK, OR, PA, WA, WI
Korea, Thailand
2025-08-19
Tobacco streak virus is transmitted mainly through infected pollen carried by thrips and by mechanical means. Seed transmission has been reported but occurs inconsistently, making it a minor but possible pathway depending on the host.
Extensive host range includes many weeds, fruit and ornamental plant species. Over 70 species reported as hosts. The vegetables and agronomic crops listed below are important hosts of Tobacco streak virus
No
CABI CPC, DPV WEB, TSV000-10
No evidence that seed is a pathway. No references found. Impatiens is reported as a host for TSV, especially in greenhouses where thrips are present.
CABI CPC, DPV WEB, TSV000-10
Crop Protection Compendium. Wallingford, UK: CAB International. www.cabi.org/cpc.
Description of Plant Viruses ; http://dpvweb.net/dpv/
Sastry, K.S., Mandal, B., Hammond, J., Scott, S.W., Briddon, R.W. 2019. Petunia spp.. In: Encyclopedia of Plant Viruses and Viroids. Springer, New Delhi. https://doi.org/10.1007/978-81-322-3912-3_686
Tomato spotted wilt virus
virus
Tomato spotted wilt tospovirus, Tomato spotted wilt virus group
Worldwide
Widespread
2023-08-21
Seed is not a pathway for Tospoviruses, including Tomato spotted wilt virus
Wide host range. Over 800 plant species are known hosts. Primarily ornamentals,flowers. No evidence that small grains or corn are hosts.
No
TSWV00-1, TSWV00-3
Seed is not a pathway for Tospoviruses, including Tomato spotted wilt virus.
TSWV00-1, TSWV00-3
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