Orchids
Key warning symptoms:
The two most common orchid viruses, Cymbidium mosaic virus and
Odontoglossum ringspot virus, are spread by humans, when propagating
plants or cutting flowers. Both viruses are very stable and can survive for
a long time on hands, cutting tools and other surfaces. Aphids and
thrips can spread other viruses that frequently infect orchids.
Viral symptoms in orchids vary greatly from cultivar to cultivar,
and even from plant to plant. Some typical symptoms on leaves include
brown, black or yellow spots or streaks; ringspots and mosaic
patterns. Some symptoms that may be evident on flowers are distorted
shapes, brown streaks and color break.
Orchid Screen
Pathogen |
Symbol |
Spread by |
Test Protocol |
| Cucumber Mosaic Virus |
CMV |
aphid, mechanical, seed |
ELISA |
| Cymbidium Mosaic Virus |
CyMV |
contact, mechanical |
ELISA |
| Impatiens Necrotic Spot Virus |
INSV |
thrips, mechanical |
ELISA |
| Odontoglossum Ringspot Virus |
ORSV |
mechanical |
ELISA |
| Potyvirus Group Test |
POTY |
aphid, mechanical, seed |
ELISA |
| Tobacco Mosaic Virus |
TMV |
contact, mechanical, seed? |
ELISA |
| Tomato Ringspot Virus |
ToRSV |
nematode, mechanical, seed |
ELISA |
| Tomato Spotted Wilt Virus |
TSWV |
thrips, mechanical |
ELISA |
| Turnip Mosaic Virus |
TuMV |
aphid, mechanical |
ELISA |
Other tests available for orchid are:
Pathogen |
Symbol |
Spread by |
Test Protocol |
| Cymbidium Ringspot Virus |
CyRSV |
contact, mechanical |
ELISA |
| Carlavirus group test |
Carla |
aphid, mechanical |
PCR |
| Nepovirus group test |
Nepo |
nematode, mechanical, seed | PCR |
| Potyvirus group test |
Poty |
aphid, mechanical, seed |
PCR |
| Tobamovirus group test |
Tobamo |
contact, mechanical, seed |
PCR |
