Ipomoea chlorotic speckle virus

The causative agent is Carlavirus chloroipomoeae, a plant-infecting virus belonging to the Carlavirus genus. This pathogen induces systemic infection within susceptible hosts, interfering with plant cellular functions and developmental physiology.

The disease primarily affects species within the Ipomoea genus, including ornamental morning glories and sweet potatoes (Ipomoea batatas). These crops are susceptible to viral accumulation, which can disrupt growth cycles and yield potential in agricultural and horticultural settings.

Diagnostic symptoms include chlorotic spots, mosaic patterns, and vein banding on the leaves. In more severe stages of infection, plants may exhibit stunted growth, leaf curling, and a significant reduction in flower production, which diminishes the overall ornamental or agricultural value of the crop.

Disease dissemination occurs largely through aphid vectors that transmit the virus while feeding on plant sap. Additionally, the virus can be spread through mechanical transmission, often facilitated by human activities such as pruning or handling infected plants using contaminated tools without proper sterilization.

Management practices focus on preventative measures, including the exclusion of infected materials through rigorous plant health inspections. Strategies include:

• Utilizing virus-indexed propagation material.
• Monitoring and managing aphid populations.
• Sanitizing gardening tools between uses.
• Rogueing and destroying symptomatic plants to eliminate infection sources.