How should black measles be managed?

The management of black measles, a significant disease that affects grapevines caused by the fungus Diplodia viticola, involves specific treatment strategies aimed at reducing the presence of the pathogen and preventing further damage. Applying lime sulfur is an effective approach, as it not only helps to control fungal infections but also acts as a fungicide. The process involves ensuring that the lime sulfur reaches the cracks and crevices of the vines where the fungus may reside and multiply. This thorough application is crucial because it enables the treatment to penetrate areas that are otherwise difficult to access, thereby providing a more comprehensive solution to managing the disease.

In contrast, simply cutting off affected parts of the vine may not address the underlying problem, as the disease can still be present in untreated areas. Likewise, applying fungicides without the correct application method might not yield effective results if the pathogen is hidden in these crevices. Therefore, using lime sulfur represents a more holistic approach to managing black measles, focusing on the elimination of the pathogen and protecting the vines.