Year-Round IPM Program Pages
This year-round program covers the major pests of apricot in California.
Bloom (red bud to petal fall)
- Special issues of concern related to water quality: pesticide applications, drift, runoff.
- Mitigate pesticide effects to minimize air and water contamination.
What should you be doing during this time?
If peach twig borer was not treated in the dormant season, apply a bloomtime treatment according to the Pest Management Guidelines.
Install pheromone traps for peach twig borer in the orchard no later than March 15 in the San Joaquin Valley and the Central Coast and April 1 in the Sacramento Valley.
- Check traps and keep records to determine timing of an in-season treatment.
- In orchards where mating disruptants are to be used, place dispensers in orchard as soon as moths are caught in traps.
Apply fungicide treatments as needed according to the Pest Management Guidelines for:
Watch for these invertebrate pests:
- Cankerworm
- Citrus cutworm
- Green fruitworm
- Fruittree leafroller
- Obliquebanded leafroller
- Western tussock moth larvae
- Katydids (from Madera south—on weed cover or feeding on lower leaves in the crotch of the tree)
Manage according to Pest Management Guidelines.
Manage orchard floor vegetation.
- Cut ground cover short
Note weeds escaping treatment and their location in the field. Pay particular attention to weeds escaping control after glyphosate use, which might be an indication of resistance.
Watch for crowned sparrows and house finches to minimize damage to fruit buds.
- Manage according to the Pest Management Guidelines.
Other pests you may see:
- Peachtree borer
- European red mite
- Bacterial canker
- Mealy plum aphid