Pacific Pests, Pathogens & Weeds - Mini Fact Sheet EditionOil palm genetic orange spotting (205)
Pacific Pests, Pathogens & Weeds - Mini Fact Sheet EditionOil palm genetic orange spotting (205)
Summary
- Widespread distribution. On oil palms, but the viroid is related to Coconut cadang-cadang viroid and Coconut tinangaja viroid of cocounts. Wherever oil palms are grown. Of minor importance; sometimes 1-2% after 3 years.
- Of interest because Coconut cadang-cadang viroid of coconut causes the spotting disease in oil palm, and the spotting viroid of oil palm causes cadang-cadang in coconuts, a lethal disease.
- Spots 2-3 mm on all but the youngest leaves, palms stunted and bunches and nuts smaller than normal. Decline occurs over 20 years.
- Spread in seed, and perhaps when harvesting.
- Cultural control: remove palms when symptoms first seen.
- Chemical control: none recommended.
Common Name
Oil palm genetic orange spotting
Scientific Name
Oil palm orange spotting viroid, and its abbreviation is OOSVd. A viroid is a length of RNA, much smaller than the RNA of the smallest virus, and without a protein coat. OOSVd is closely related to a viroid in the Philippines, Coconut cadang-cadang viroid (CCCVd), which causes a lethal disease in coconuts and other palms.
AUTHOR Grahame Jackson
Information (and Photos 1&2) Dagmar Hanold and John Randles, Waite Agricultural Research Institute, University of Adelaide, Glen Osmond, South Australia.
Produced with support from the Australian Centre for International Agricultural Research under project PC/2010/090: Strengthening integrated crop management research in the Pacific Islands in support of sustainable intensification of high-value crop production, implemented by the University of Queensland and the Secretariat of the Pacific Community.
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