Year-Round IPM Program Pages
This year-round IPM program covers the major pests of almond in California.
About Fruit Development
- Why is this crop stage important in an IPM program?
- Mitigate pesticide effects on air and water quality
What should you be doing during this time?
Monitor shoot strikes for peach twig borer and Oriental fruit moth; examine strikes to properly identify species.
- Manage if needed according to the Pest Management Guidelines.
Monitor San Jose scale:
- Pheromone traps are useful for detecting male scales and parasites.
Monitor navel orangeworm egg, and pheromone, traps:
- Keep records .
- Manage if needed according to the Pest Management Guidelines.
Monitor ant mounds (once during April or May)
- Keep records .
- Manage if needed according to the Pest Management Guidelines.
Monitor spider mites weekly:
- Keep records .
- Manage if needed according to the Pest Management Guidelines.
Take leaf samples in April or July to make sure that nitrogen levels do not favor hull rot.
Monitor for and manage if needed according to the Pest Management Guidelines:
- Alternaria leaf spot
- Bacterial spot
- Hull rot caused by Monilinia or Rhizopus spp.
- Rust
- Scab
- Shot hole
Assess weeds in late spring:
- Identify uncontrolled weeds to plan future management strategies.
- Keep records of monitoring.
- Continue to maintain ground cover to facilitate cultural practices and pest management.
Other pests you may see:
Insects:
- Brown mite
- European red mite
- Leaffooted bugs
- Obliquebanded leafroller
- Peach silver mite
- Peachtree borer
- Stink bugs
- Tenlined June beetle (where soils are very sandy)
Diseases:
- Almond leaf scorch
- Armillaria root rot (dying trees)
- Band canker (2nd to 6th leaf trees)
- Ceratocystis canker
- Silver leaf
- Wood-decay fungi (fruiting bodies)
- Noninfectious bud failure
Identify beginning of hullsplit; regulate irrigation during hullsplit to manage hull rot.