Abstract
In Surinam no red ring disease in coconut, caused by the nematodeRhadinaphelenchus cocophilus, could be found under natural conditions. An inoculation experiment with the nematode in coconut palm and an experiment in oil palm where an entry for the vectorRhynchophorus palmarum was made, resulted in red ring symptoms. Collection of weevils of the speciesR. palmarum in coconut and oil palm plantations and in wild vegetation, showed that both vectors and nematodes occur in considerable numbers. The slow development of red ring in the inoculation experiment and of little leaf — another symptom, caused byR. cocophilus — in a period of excessive drought might give an explanation for the absence of red ring in Surinam. In the main coconut growing areas rainfall is poor as compared with other coconut-growing countries in the Caribbean.
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