A new study found that coffee wilt disease, which has caused major crop losses in Africa, has repeatedly emerged due to genes jumping between different fungal species. These genes travel via special mobile DNA elements called Starships, which act like genetic vehicles carrying pathogenic genes from one fungus to another. When Fusarium fungi exchanged genes this way, they became better at infecting different varieties of coffee plants. Understanding how these genes move is crucial for protecting coffee crops from future disease outbreaks.