Cucumber mosaic

The causative agent of the disease is the Cucumber mosaic virus (CMV), which belongs to the Cucumovirus genus. This plant virus is considered one of the most economically significant pathogens due to its global distribution and its ability to infect a vast range of plant species.

The host range of this virus is exceptionally wide, including more than 800 species of monocots and dicots. Among the most susceptible crops are cucumbers, melons, squashes, tomatoes, peppers, celery, and many ornamental plants such as lilies and gladioli.

The disease symptoms typically include a mosaic pattern on leaves consisting of light green, yellow, and dark green mottling. Affected plants often exhibit severe leaf curling, stunting, and deformation. Fruit development is frequently compromised, showing reduced size, mottled skin, and overall poor market quality.

The transmission of the virus occurs via two main pathways: insect vectors and mechanical contact. Aphids are the primary vectors, acquiring the virus by feeding on infected plants and transmitting it to healthy ones within seconds. Mechanical spread occurs through contaminated tools, clothing, or direct plant-to-plant contact.

• Implement strict weed control to eliminate virus reservoirs around field edges.
• Monitor and control aphid populations using targeted insecticide treatments.
• Rogue out and destroy infected plants immediately upon symptom detection.
• Sanitize all farming tools and equipment to prevent cross-contamination.
• Select and plant virus-resistant or tolerant crop cultivars.