Gibberella xylarioides (Fusarium xylarioides) is a species of fungus in the family Nectriaceae. It is the causative agent of Coffee Wilt Disease (CWD). The disease caused a severe problem in several countries in West and East Africa during the 1940s and 1950s. CWD was first seen in Coffea liberica. Main hosts Coffea arabica (arabica coffee) Coffea canephora (robusta coffee) Coffea liberica (Liberian coffee tree) Other Hosts Gossypium (cotton) Musa x paradisiaca (plantain)