Xylella fastidiosa: a model for analyzing agricultural biosecurity

Area of Science:

• Agricultural science
• Plant pathology
• National security

Background:

• Hostile release of human pathogens is a documented threat.
• The risk posed by plant pests and pathogens to national economy and food supply is less understood.
• Exotic plant diseases pose a significant threat to U.S. agriculture and food security.

Purpose of the Study:

• To conduct a risk analysis for the introduction and spread of foreign plant pathogens into the U.S. agricultural system.
• To evaluate the threat of plant diseases to crops and agriculture-dependent industries using Xylella fastidiosa as a model.
• To assess the U.S. capacity for detecting, containing, and managing newly introduced plant pathogens.

Main Methods:

• Risk analysis framework development.
• Case study utilizing Xylella fastidiosa Citrus Variegated Chlorosis strain.
• Assessment of national detection, containment, and management capabilities.

Main Results:

• Identified vulnerabilities and limitations in the U.S. system for managing exotic plant pathogens.
• Provided a model for evaluating the economic and agricultural impact of plant diseases.
• Highlighted areas needing improvement in agricultural biosecurity.

Conclusions:

• Exotic plant diseases present a substantial risk to U.S. agricultural biosecurity.
• Current systems have limitations in detecting, containing, and managing foreign plant pathogens.
• A robust framework is needed for ongoing preparedness against agricultural biosecurity threats.