To learn more
about HLB, visit the 2011 and 2008
Research Conference Proceedings

Risk-Based Residential HLB/ACP
Survey for California, Texas, and Arizona

October 2013

By Tim R. Gottwald, Ph.D.
Research Leader/Plant Pathology
U.S. Dept. of Agriculture
Agricultural Research Service

Watch Presentation (46 min 57 sec)

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Summary: This presentation will help consultants, growers, regulators and other practitioners in the Florida, Texas, California and Arizona citrus growing regions to understand and employ a risk based urban survey for early detection of Citrus Huanglongbing (HLB). HLB is a devastating citrus disease threatening many citrus industries and growing regions worldwide. The capacity for HLB to increase very rapidly highlights the importance of early detection and response when dealing with exotic and invasive diseases; developing a detection protocol for HLB for California, Texas and Arizona is the primary objective of this research. The importance of an effective detection system for HLB is underlined by the existence of the large urban citrus population with no disease or vector control that exists as a mixed landscape with commercial citrus production and which poses a continual treat of vector and disease immigration. By the end of the presentation, concerned stakeholders will understand the underlying survey model and risk factors utilized to develop an overall risk algorithm that is used to maximize targeting of manpower and resources and optimize disease/vector detection and response.

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