Treatment Schedules by Region

Treatment strategies for the Asian citrus psyllid are different in various regions of the state depending on if the psyllid is well-established (requiring an area-wide management strategy) or is new to an area (requiring an eradication strategy). More details about eradication strategies and treatments can be found on the University of California’s website.

Below are the currently scheduled coordinated and area-wide treatments across the state. All dates and information are subject to change. For additional questions or information, contact your grower liaison about area-wide management and how to implement the recommended protocols.

Central Coast

Winter 2022 Treatment:

  • January 3 - January 23, 2022
    • Citrus growers with 25 or more trees are asked to treat for ACP during this time frame, or as close to it as possible considering weather and orchard conditions.

Eradication – no area-wide treatment

All treatments will follow the same progression through the county’s psyllid management areas (PMAs) as in previous years. Growers are also encouraged to include an ACP-effective material when spraying for other pests during the summer months.

Central Valley

Eradication – no area-wide treatment

Check back later for treatment dates.

Eradication – no area-wide treatment

Eradication – no area-wide treatment

Eradication – no area-wide treatment

Southern California

Winter 2022:

  • December 20, 2021 - February 6, 2022
    • The District is requiring that both conventional and organic applicators spray the perimeter of your grove(s) first. Winter 2022 ACP Treatments are currently open with most Growing Zones starting on January 3rd or 10th. If you are not sure which zone you are in or the agreed upon treatment dates, please contact Curtis Pate at curtis@agtegrity.net.

Check back later for treatment dates.

2021/2022 ACP Treatment Schedule

  • Winter Treatment – Nov. 16 – Dec. 15, 2021

Winter 2022:

  • January 3 - 17, 2022: Pauma Valley and San Pasqual Valley
  • January 10-24, 2022: Anza Borrego PCD
    • *Organic operations must do two applications within 10 days of each other with at least one application within the treatment window.