"There was nothing "natural" about monoculture. It was a consequence of imperialist requirements and machinations, extending into areas that were politically independent in name. Monoculture was a characteristic of regions falling under imperialist domination. Certain countries in Latin America such as Costa Rica and Guatemala were forced by United States capitalist firms to concentrate so heavily on growing bananas that they were contemptuously known as “banana republics.” In Africa, this concentration on one or two cash crops for sale abroad had many harmful effects. Sometimes, cash crops were grown to the exclusion of staple foods—thus causing famines. For instance, in Gambia rice farming was popular before the colonial era, but so much of the best land was transferred to groundnuts that rice had to be imported on a large scale to try to counter the fact that famine was becoming endemic. In Asante, concentration on cocoa raised fears of famine in a region previously famous for yams and other foodstuff. Yet the threat of famine was a small disadvantage compared to the extreme vulnerability and insecurity of monoculture. When the crop was affected by internal factors such as disease, that amounted to an overwhelming disaster, as in the case of Gold Coast cocoa when it was hit by swollen-shoot disease in the 1940s. Besides, at all times, the price fluctuations (which were externally controlled) left the African producer helpless in the face of capitalist maneuvers."