Fulgian rust was a disease that affected plants, though Droghenian wheat was resistant to it.
History and specifics[]
In the 2360s decade, Brentis VI suffered an outbreak of Fulgian rust, which destroyed crops over two consecutive years. In the year 2364, the Federation starship USS Enterprise-D went there on an urgent mission to deliver a consignment of Droghenian wheat before its specified planting time. (TNG novel: Survivors)