Potato Virus Y
- Issue type
- disease
- Seedborne
- No
- Resistance code
- PVY, PepMoV, TEV, pvr2-1, pvr2-2, pvr4
Symptoms
Vein-banding mosaic and puckered young leaves, with stunted plants and small unmarketable pods. Spread by aphids in seconds of probing, which is why insecticides rarely prevent it.
Management
Resistance genes are the practical control, and commercial pepper varieties list potyvirus resistance (PVY, TEV, PepMoV) as a package because the same recessive pvr genes often cover several. Reflective mulch delays aphid arrival; roguing infected plants early limits the within-field spread.
Varieties with documented resistance
| Variety | Level | Code | Basis | Days | Breeding |
|---|---|---|---|---|---|
| Aristotle | resistant | PVY | Independently observed | 70-75 | F1 hybrid |
| Paladin | resistant | PVY | Independently observed | 70-78 | F1 hybrid |
| Revolution | resistant | PVY | Breeder declared | 72-78 | F1 hybrid |
| King Arthur | resistant | PVY | Breeder declared | 68-72 | F1 hybrid |
| Carmen | resistant | PVY | Breeder declared | 60-80 | F1 hybrid |
| Chichimeca | resistant | PVY | Breeder declared | 65-80 | F1 hybrid |
| Red Knight | resistant | PVY | Breeder declared | 57-75 | F1 hybrid |
| Giant Marconi | resistant | PVY | Breeder declared | 70-80 | F1 hybrid |
| Turnpike | resistant | PVY | Breeder declared | 65-80 | F1 hybrid |
| Archimedes | resistant | PVY | Breeder declared | 60-80 | F1 hybrid |
| Tracer | resistant | PVY | Breeder declared | 55-72 | F1 hybrid |
| Sprinter | resistant | PVY | Breeder declared | 55-72 | F1 hybrid |
This is the page where the difference matters most, because it is where a variety gets chosen for its resistance. Breeder declared means the claim comes from whoever breeds or sells the seed, which for most resistance genes is the only evidence that exists. Independently observed means an institution with no stake in the sale grew the plant and reported what happened.
Sources & References
Evidence: 2 sources, all independent references.
- Pepper Production Guides · University of Florida IFAS Extension, University or Government
- Overview of Biotic Stresses in Pepper (Capsicum spp.): Sources of Genetic Resistance, Molecular Breeding and Genomics · International Journal of Molecular Sciences (2020), Peer-Reviewed