Area of impact: Pods
Description: Buds bend to form a characteristic hook and may brown and fall off. Pods have brown patches and develop poorly. Young plants may be stunted.
Pathogen involved: Tobacco ringspot virus
Timing/Conditions: Can occur all season long most likely in fields next to clovers pastures or weedy areas.
Contributing factors: The disease is transmitted by seed usually but also by thrips grasshoppers and dagger nematodes.
Management practices: Plant virus-free seed and avoid planting beans next to pastures.