Year-Round IPM Program Pages
This year-round IPM program covers the major pests of both commercial and seed potato production fields in California.
About Emergence Through Row Closure
- Mitigate pesticide effects on air and water quality.
What should you be doing during this time?
Watch for pests of foliage including:
Note presence of pests or damage (example monitoring form and manage according the Pest Management Guidelines.
Monitor for tuberworm adults (Central and Southern California).
Apply insecticide if needed according to the Pest Management Guidelines.
Use hilling to shape beds that facilitate tuber coverage during tuber bulking.
If white mold has been a problem in previous potato crops, apply fungicide at flowering according to the Pest Management Guidelines.
Consider application of nematicides via chemigation based on degree day model of nematode lifecycle.
Irrigate as needed.
Apply fertilizer as needed according to soil and petiole tests. Avoid over- or under-fertilization (especially nitrogen).