The needs of Florida watermelon producers motivate Yiannis Ampatzidis to use artificial intelligence (AI) to detect pathogens early and accurately. One such disease, downy mildew, spreads like wildfire, said Ampatzidis, a University of Florida Institute of Food and Agricultural Sciences (UF/IFAS) associate professor of agricultural and biological engineering. In newly published research, Ampatzidis used spectral reflectance — the energy a …