Incidence of Cadang-Cadang Disease of Coconut Palm in the Philippines. B. Zelazny, UNDP/FAO Coconut Research and Development Project, Albay Research Center, Guinobatan, Albay 4908, Philippines. E. Pacumbaba, UNDP/FAO Coconut Research and Development Project, Albay Research Center, Guinobatan, Albay 4908, Philippines. Plant Dis. 66:547-549. Accepted for publication 21 July 1981. Copyright 1982 American Phytopathological Society. DOI: 10.1094/PD-66-547.

By a new survey method, the total number of new cases of cadang-cadang disease in the Philippines in 1978 and 1980 was estimated to be 391,000 and 209,000 trees, respectively. The decline was significant and independent of changes in the age distribution of the palms. Comparison with earlier records showed a considerable decline in incidence of the disease during the last 20 yr.

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