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Our ornamental screen is a starting point for identifying pathogens in ornamental plants for which we have not yet assembled a regular screen. For some plants, we recommend different sets of tests instead of this general screen. Please call us if you would like us to suggest tests to include in a screen for your ornamental crop. We will be happy to make recommendations.
Among the viruses we most often detect in ornamental crops are Tomato spotted wilt virus and Impatiens necrotic spot virus, both transmitted by thrips. These two viruses can cause disease in many plants, with symptoms that can be mistaken for nutritional disorders, fungal diseases, or other problems. As research on these two common viruses progresses, the list of plants that they are known to infect continues to grow.
Other viruses that most often occur in ornamentals are cucumber mosaic virus, transmitted by aphids, and tobacco and tomato ringspot viruses, transmitted by nematodes, seeds or by propagating infected plants.
Pathogen |
Symbol |
Spread by |
Test protocol |
| Alfalfa Mosaic Virus | AMV | aphid, mechanical, seed | ELISA |
| Arabis Mosaic Virus | ArMV | nematode, mechanical, seed | ELISA |
| Broad Bean Wilt Virus | BBWV | ELISA | |
| Chrysanthemum Virus B | CVB | aphid, mechanical | ELISA |
| Cucumber Mosaic Virus | CMV | aphid, mechanical, seed | ELISA |
| Impatiens Necrotic Spot Virus | INSV | thrips, mechanical | ELISA |
| Potyvirus Group Test | POTY | aphid, mechanical, seed | ELISA |
| Prunus Necrotic Ringspot Virus | PNRSV | mechanical, seed | ELISA |
| Tobacco Mosaic Virus | TMV | contact, mechanical, seed | ELISA |
| Tobacco Ringspot Virus | TRSV | insect, nematode, mechanical, seed | ELISA |
| Tobacco Streak Virus | TSV | thrips, mechanical, seed | ELISA |
| Tomato Aspermy Virus | TAV | aphid, mechanical, seed | ELISA |
| Tomato Mosaic Virus | ToMV | contact, mechanical, seed | ELISA |
| Tomato Ringspot Virus | ToRSV | nematode, mechanical, seed | ELISA |
| Tomato Spotted Wilt Virus | TSWV | thrips, mechanical | ELISA |
Pathogen |
Symbol |
Spread by |
Test protocol |
| Alstromeria Mosaic Virus | AlMV | aphid, mechanical | ELISA |
| Broad Bean Wilt Virus | BBWV | aphid, mechanical | ELISA |
| Phytopthora | Phyt | contact, mechanical, soil, water | ELISA |
| Ralstonia (Pseduomonas) solanacearum | Rs | mechanical, propagation, soil, water | ELISA |
| Tobacco Rattle Virus | TRV | mechanical, nematode, seed | ELISA |
| Verticillium dahliae | Vdah | contact, mechanical, soil, water | ELISA |
| Erwinia carotovora | Ec | mechanical, soil, water | Immunoblot |
| Xanthomonas campestris | Xc | contact, mechanical, soil, water | Immunoblot |
| Arabis Mosaic Virus | ArMV | nematode, mechanical, seed | PCR |
| Carlavirus group test | Carla | aphid, mechanical | PCR |
| Luteovirus group test | Luteo | aphid | PCR |
| Nepovirus group test | Nepo | nematode, mechanical, seed | PCR |
| Phytoplasmas | Phyto | leafhopper | PCR |
| Potexvirus group test | Potex | insect, contact, mechanical | PCR |
| Potyvirus group test | Poty | aphid, mechanical, seed | PCR |
| Tobacco Rattle Virus | TRV | nematode, mechanical, seed | PCR |
| Tobamovirus group test | Tobamo | contact, mechanical, seed | PCR |