Senave issues phytosanitary alert for cassava disease in Paraguay

The National Service for Plant and Seed Quality and Health (Senave) has issued a phytosanitary alert in Paraguay regarding the potential arrival of the cassava witch broom disease. While the pathogen, Ceratobasidium theobromae, has not yet been detected within Paraguayan territory, authorities are activating surveillance mechanisms following its appearance in the surrounding region.

The disease attacks the plant's vascular system, disrupting the transport of water and nutrients. This can lead to severe deformities and growth reduction, with potential yield losses ranging from 80% to 100% in extreme cases. Because cassava is a staple food and a vital source of income for many Paraguayan families, the threat poses significant risks to food security and the rural economy.

Senave warned that the fungus can be transmitted through infected stakes, even those without visible symptoms, as well as through wind-borne spores and insect vectors. Producers are advised to use only certified materials, avoid stakes from affected areas, and report any suspicious symptoms immediately.