Infectious bush thickening (BT) and bush encroachment (BE) are caused by the densification of alien and indigenous woody shrub and tree species, such as Senegalia mellifera (black thorn), Vachellia species (Senegalia and Vachellia were previously known as Acacia spp) and Prosopis (mesquite). BE refers to instances where woody species (shrubs and trees) establish in areas … Continue reading Infectious bush thickening and encroachment