Suspected case of TR4 found in Venezuela News comes just weeks after the fungus was confirmed to be present on a farm in northern Peru Fusarium wilt TR4 in a farm in Colombia Photo: Fernando García, KeyGene A suspected case of Fusarium wilt Tropical Race 4 has been reported on a banana farm in Venezuela, according to reports in the Latin American press. The news comes just weeks after it was confirmed that the deadly fungus had been discovered on a farm in northern Peru, sparking fears that attempts to contain the disease since its arrival in Colombia in 2019 are not working.