CDFA Pest Prevention Plant Regulation Practice Exam

Citrus canker is classified as which type of pathogen?

1. Virus

2. Bacteria

3. Fungus

4. Parasite

The correct answer is: Bacteria

Citrus canker is classified as a bacterial pathogen, specifically caused by the bacterium Xanthomonas citri subsp. citri. This bacterial disease affects various citrus plants, leading to the development of lesions on leaves, stems, and fruit, which can ultimately reduce the quality and yield of citrus crops. Understanding that citrus canker is caused by bacteria is crucial for the implementation of appropriate control measures, which often involve regulatory actions, such as monitoring and eradicating infected plants to prevent its spread. The focus of management practices typically includes the use of resistant plant varieties, sanitation measures, and, in some instances, the application of bacterial-inhibiting treatments. Identifying citrus canker correctly as a bacterial disease is essential for effective pest prevention and plant regulation strategies.