| 論文英文摘要 |
Pineapple fruitlet core rot (FCR, or black spot) occurs in many pineapple-growing countries, and is also a severe pineapple fruit disease in Taiwan, causing tremendous loss. No effective method of controlling this disease has been developed yet in Taiwan. To help the research and management of this disease in the future, this article summarized results from domestic and foreign research. The pathogens causing FCR are complicated, mainly including Talaromyces funiculosus ( =Penicillium funiculosum) a n d Fusarium ananatum. Recent studies also showed that several other Talaromyces spp. and Fusarium spp. were also associated with FCR. Symptoms of FCR are light to dark brown necrosis and dry rot of fruitlets. Diseased fruits might not have visible external symptoms, or could show uneven ripening. Foreign research showed that the infection occurred between open heart stage and flowering stage, during which high rainfall and low temperature were conducive to disease development. There is no reliable chemical for controlling this disease currently in either Taiwan or foreign countries. At the moment, this disease could only be controlled by planting resistant cultivars, and adjusting flower forcing timing to escape from the disease. Though there are already many studies about FCR abroad, the pathogen species and ecology of this disease in Taiwan might be different and remain unclear currently. Therefore, more investigations and research should be conducted in the future. |