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PP355: Stem and Fruit Canker of Dragon Fruit in South Florida

Figure 4. Effect of temperature on the percentage of spore germination (closed circle) and colony size (open triangle) of Neoscytalidium dimidiatum after incubating at different temperatures for 24 hours. The higher the temperature, the more spores germinate in 24 hours. Once germinated, the pathogen grows faster between 27? and 37?, compared with that between 15? and 23?. The optimum temperature for pathogen growth is around 32?.