Asian Citrus Psyllid in California: an Economic Analysis of Efficient Management and Control Strategies

Project: Research project

Project Details


This proposal is in response to SCRI mandated research focus areas (2) Efforts to identify and address threats from pests and diseases, including threats to specialty crop pollinators, and (3) Efforts to improve production efficiency, productivity, and profitability over the long term. Asian Citrus Psyllid (ACP, Diaphorina citri Kuwayama) is an invasive insect species that has been present in Florida since 1998, but was not sighted in California (San Diego County) until August 2008. ACP damages citrus by feeding on the leaf and depositing a large amount of honeydew, as well as vectoring the bacterium that causes Citrus Greening Disease (CGD, huanglongbing). If left unchecked, the California Department of Food and Agriculture (CDFA) estimates potential damage at $224.0 million annually. Given the financial constraints facing CDFA, the decision of whether to commit resources to: (1) excluding pests from entering, (2) allowing entry, but eradicating upon discovery, or (3) allowing entry, and controlling dispersion through existing techniques, is a critically important problem. This study proposes to develop a spatio-temporal optimal control modeling framework to determine the optimal allocation of resources to these three activities, taking into account: (1) whether it will be possible to incentivize the grower community to mount a cooperative management effort on their own, and (2) the market impacts of an uncontrolled ACP infestation. We plan to communicate the practical application of our results to CDFA officials through seminars and industry stakeholders (growers and processors) through industry meetings organized by the California Citrus Mutual (CCM).
Effective start/end date9/1/108/31/13


  • US Department of Agriculture (USDA): $312,471.00


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