"In Colombia, the government has sought to counter coca growth by building a solid regional and local economic base for agriculture, agro-industry, and forestry work. In addition, Colombia is currently developing a land tenure policy for traditional coca-growing areas to help solidify local support for licit alternatives to coca.15 For decades, alternative development has been a cornerstone of the international response to the illicit drug trade. The idea is to encourage drug crop farmers to shift to other profitable crops, such as cacao and coffee. However, the association of alternative development with law enforcement activities, including eradication and aerial spraying, has had a negative impact on the attitudes of the communities directly involved. That is a significant factor, because without the participation of these communities there is no chance of developing effective alternative crop programs."

Source

Organization of American States, General Secretariat, "The Drug Problem in the Americas," 2013, p. 34.
http://www.oas.org/documents/…