Potato aphids are active in some fields in Southern Aroostook. The incidence of potato aphids increased markedly on all our tower traps collected Monday of this week.
Seed growers should remember that potato plants are susceptible to PVY infection as long as there is green plant material visible.
Please note that the aphid economic thresholds are for colonizing aphids only.
Colonizing Aphid Recommended Economic Thresholds
- Seed: 10% of plants with aphids, or 1 winged Green peach aphid
- Processing/Tablestock: 50% of plants with aphids, or 1 winged Green peach aphid