Cadang-cadang disease of palm and other diseases
R. F. LEE (1). (1) USDA ARS, Riverside, CA, U.S.A.
The ornamental palm and the date palm industries are economically important in the United States. These industries are susceptible to invasive pathogens and pests. Viroid diseases of palm are one example. Coconut cadang-cadang disease, caused by a viroid, has killed over 30 million coconut palms in Southeast Asia. Tinangaja disease, also caused by a viroid, occurs in Guam. Many date palm production areas in the Eastern Hemisphere consider the red palm weevil, <i>Rhynchophorus ferrugineus</i>, to be the most damaging pest of palm economically. The red palm weevil has been found in Aruba in the Southern Caribbean area, and more recently in the Laguna Beach area of California. The giant palm weevil, <i>R. palmarum</i>, is established in tropical America, including Central America, and has been reported in Southern California. The etiology, epidemiology, and management of these pests will be discussed.
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