Year-Round IPM Program Pages
This year-round IPM program covers the major pests of nectarine in California.
About Bloom (green tip to petal fall)
- Why is this season important in an IPM program?
- Mitigate pesticide effects to minimize air and water contamination.
What should you be doing at this time?
- Oriental fruit moth (February 15)
- Omnivorous leafroller (February 20)
- San Jose scale (February 25)
Check traps and keep records (example monitoring/degree-days form—PDF).
If using mating disruption for oriental fruit moth, place dispensers in orchard after first moth is caught but no later than March 5.
- Western flower thrips
- Peach twig borer
- Fruittree leafroller
- Obliquebanded leafroller
Monitor for other pests, including stink bugs and plant bugs, as well as known invasive pests (spotted wing drosophila, light brown apple moth).
When rainy conditions promote disease, time fungicide treatment according to Nectarine Pest Management Guidelines:
Monitor for diseases:
- Monitor twig cankers beginning late March.
- Treat with fungicide if needed according to Nectarine Pest Management Guidelines.
- Fruiting structures in leaf lesions as long as weather is wet.
Manage if needed according to Nectarine Pest Management Guidelines.