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Occurrence - According to farmers, the original disease focus was Equatorial Guinea. The disease occurred in Camerron for the first time in 1937 at Ebodié, sparing few palms and then it spread by successive leaps, leaving zones of coconut palms several kilometres long free of the disease, but killing almost 90% of palms in the disease foci within 2 to 3 years. Following the losses caused by this disease, major replanting operations were implemented between 1945 and 1954. The phytoplasma infection which is called "Kribi disease" stll exists in Cameroon (as of 9/99) and has pushed farmers to abandon coconut cultivation. Actually the disease is still a problem because there is a loss of interest in creating coconut plantation. Nobody is taking care of the disease.
However, in Togo where people have a lot of interest in coconut plantation, scientists have used one cultivar from Cameroon called "nain rouge" for crosses with local material. The hybrid is reputed to be resistant to the disease.
Coste, R. & Guichard (1934) Le noix de cocotier. Cameroun Agricole, Forestier, Minier. 5, 6-39.
Heim, R. & Chevaugeon, J. (1948) La pourriture fétide du coeur Cocotier au Cameroun. Rev. Path. Vég. 27 (4), 195-216. Also R.A.M. 30, 35-36 (1951).
Grimaldi, J. & Nonveiller, G. (1965) La maladie des cocotiers de Kribi. Cameroun Agric 90, 18-27.
Grimaldi, J. (1966) La maladie des cocotiers de Kribi. Cameroun Agric 101, 38-46.
Anon (1972) Le problem cocotier dan la region de Kribi. Cameroun Agricole, Pastoral et Forestier 130, 27-31.
Dollet, M., Gianotti, J., J.L. Renard & S.K. Ghosh. (1977) Etude d'un jaunissement letal des cocotiers au Cameroun: la maladie de Kribi. Observations d'organismes de type mycoplasmes. Oleaginéux 32: 317-322.
Dollet, et al 1977
Spread - dates and places of subsequent outbreaks (ditto)
Currently active areas - dates and places (seek information/confirmation)
Suspected new outbreaks - specify whether confirmed or unconfirmed (reference)
Other palm/plant hosts
New hosts, new vectors, new strains or suspected loss of resistance - confirmed or unconfirmed
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