Recently, it has been shown thatremote sensing and hyperspectral imaging can also help inpathogen diagnosis (Lowe et al. 2017; Kuska et al. 2015;Qin et al. 2009) and can facilitate the early detection andmonitoring of fire blight in the commercial orchards(Jarolmasjed et al. 2019; Bagheri et al. 2018). For example,RGB and multispectral imaging, and hyperspectral sensingdetected potential spectral bands for early fire blight symptomsin apple orchards (Jarolmasjed et al. 2019). The nearinfraredspectroscopy coupled with specific statistical approacheswas also able to detect fire blight in nonsymptomaticleaves in pear (Bagheri et al. 2018). Theseimage-based disease detection tools again require special instrumentsand technical expertise for imaging and data analysis.However, they might resolve the uncertainties betweenfire blight infection and related symptoms from nectria twigblight and spray damage.