Ace the 2026 PCA Plant Pathogens Exam – Unleash Your Inner Pest Buster!

The association of the virus with bean common mosaic disease is clearly defined in plant pathology. The Bean Common Mosaic virus (BCMV) is the specific pathogen that causes this particular disease in beans. BCMV leads to significant symptoms including mosaic patterns on the leaves, stunted growth, and reduced yield. The precise naming of the virus aligns directly with the disease it causes, which makes it a straightforward identification.

Bean Yellow Mosaic virus and Pea Mosaic virus, while related to other viral diseases that affect legumes, do not cause bean common mosaic disease specifically. Similarly, the Bean Leaf Roll virus has its pathogenesis and symptoms that are distinct from those associated with the common mosaic disease. Therefore, identifying the Bean Common Mosaic virus as the causative agent is critical for effective management and control strategies related to this disease in bean crops.