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Almond
Year-Round IPM Program
These practices are recommended for a monitoring-based IPM
program that reduces water quality problems related to pesticide
use. Links take you to information on how to monitor, forms to
use, and management practices. Track your progress through the
year with the annual checklist
form. This program covers the major
pests of almonds; information on additional pests is included
in the Almond
Pest Management Guideline.
Each time a pesticide application is considered, review the Pesticide
Application Checklist
at the bottom of this page for more information on how to minimize
water quality problems.
Dormant/delayed dormant season activities |
| What should you be doing at this time? |
| Count mummy nuts in orchard. |
| If more than 2 nuts per tree remain, knock off and destroy mummy nuts to reduce navel
orangeworm and brown rot before February 1. |
| Let resident vegetation or cover crop grow, but cut it short before bloom. |
| Consider applying postemergent
herbicides**
in rows in January if preemergents were not used. |
Take a dormant spur sample for scale and mite eggs mid-November to
mid-January.
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Keep records of other pests you may see:
- Peach twig borer hibernacula
- Peachtree borer
- Shothole borer
- American plum borer
- Armillaria root rot (oak root fungus)
- Pocket gophers
- Voles
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| Consider treatment** for peach twig borer with environmentally
sound material or delay treatment until bloom. |
Bloom to postbloom period activities |
Fruit development period activities (late April to start of shaking) |
| What should you be doing at this time? |
| Look for nuts or leaves stuck in trees well after harvest, indicating hull
rot. |
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Monitor for rust leasions. If present, apply zinc sulfate (ZnSO4)
to reduce overwintering leaves. |
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After fall rain begins, monitor for shot hole leaf lesions with fruiting
structures.
- Treat** if needed according to PMG.
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| If use of preemergent herbicide** in rows is planned,
time it properly. |
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Survey weeds:
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| Don’t bother to seed a cover crop unless you have sparse resident vegetation. |
**Pesticide application checklist |
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Before a pesticide application is made and when planning for possible applications in an IPM program,
review and complete this checklist to minimize water quality and other problems.
- Follow each practice in the year-round IPM Program.
- Identify target pest, treatment threshold, trigger, or justification for treatment.
- Consider nonchemical alternatives.
- Identify important natural enemies that might be impacted by pesticide application.
- Choose a pesticide from the UC IPM Pest Management Guidelines for the target pest, considering
impact on natural enemies and consulting the UC
IPM Watertox Database for water quality concerns. Select an alternative chemical or nonchemical
treatment when risk is high.
- Consider chemical class if pesticide resistance is an issue.
- Identify sensitive areas (for example, waterways or riparian areas) surrounding your application
site.
- Identify practices or mitigation measures to be used to reduce pesticide movement off-site.
- Choose sprayers and application methods that minimize off-site movement.
- Review and follow pesticide handling, storage, and disposal guidelines.
- After an application is made, record application date, product used, rate, and location of application.
Follow up to confirm that treatment was effective.
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