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December 2020 | E-Newsletter
CRB-funded Researcher Looking for 
Grower Cooperator in the San Joaquin Valley

     CRB-funded researcher Dr. Peter Ako Larbi, University of California Cooperative Extension (UCCE) Assistant Specialist, is looking for a grapefruit orchard in the San Joaquin Valley to conduct a spray drift experiment. The orchard must have a minimum row length of 500 feet and adjacent bare ground or low-lying vegetation 600 feet downwind. This experiment is expected to take place in March 2021.

     If you have such an orchard and would like to cooperate on this work or need more information, please contact Dr. Ako Larbi at or 863-430-3617.

Source: Dr. Peter Ako Larbi, University of California Cooperative Extension (UCCE)
Due to the COVID-19 pandemic, all CRB meetings and events listed are subject to change.
Please check for the most up-to-date information.
Looking for Continuing Education Credits?

   The University of California (UC) Statewide Integrated Pest Management Program is now providing a new online course on how to identify, monitor and manage citrus thrips. This course was developed by Dr. Beth Grafton-Cardwell and Dr. Joe Morse from the Department of Entomology at UC Riverside and Dr. Bodil Cass from the Department of Entomology at UC Davis. This is a great learning opportunity for citrus growers and pest management professionals to earn one hour of "Other" continuing education units approved by the California Department of Pesticide Regulation. 
For more information, please contact
Cheryl Reynolds with UC IPM at 
Two oranges with ring scars caused by citrus thrips feeding (Scirtothrips citri).
Credit: David Rosen
A second (left) and first (right) instar of citrus thrips. Young thrips are the most damaging to citrus fruit.
Credit: Jack Kelly Clark, UC IPM
Source: University of California Statewide Integrated Pest Management
HLB Quarantine Boundary 
in Orange, San Bernardino and Riverside Counties
     Effective December 9, 2020, the Department is expanding the huanglongbing (HLB) quarantine boundary in Orange, San Bernardino, and Riverside counties. CLICK HERE to view the map of the proposed boundary. 

     For questions regarding the regulations or map, please email Karina Chu at or Kiana Dao at or call 916-274-6300.
Source: California Department of Food and Agriculture (CDFA), Citrus Pest and Disease Prevention Division (CPDPD)
Check out the Fall 2020 edition of 

Citrograph Magazine

To view the Citrograph Index, click here
Industry Partners
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