TR4-infected banana shows blackened, discoloured and weakened vascular tissue within the stem.
Photo: ©TR4GN


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Fusarium Tropical Race 4 (TR4) has arrived in Latin America. It is a major threat to banana producers, many of them are smallholder farmers. There is no viable, fully effective treatment of soil or plants to control or cure Fusarium in the field.

After its first detection in Asia more than 20 years ago, and its subsequent shift to Africa in 2013, TR4 has finally arrived in Latin America. On August 8, the Colombian Institute of Agriculture (ICA) officially announced that TR4 has been found on six farms in La Guajira, the North East of the country. Subsequently, the ICA announced the declaration of a National Emergency. 

A phytosanitary alert for Fusarium Tropical Race 4 (TR4) in Latin America and the Caribbean was published by the TR4 Task Force on 15 August 2019. The TR4 Task Force is part of the World Banana Forum (WBF) of the Food and Agriculture Organization of the United Nations (FAO), and established the TR4 Global Network (TR4GN), a knowledge hub on the prevention of the spread of TR4.

TR4 is considered as the world’s greatest threat to banana production. If unchecked, it can wipe out an entire plantation.

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