Grapevine powdery mildew
require free water (such as rain or dew) to infect, making it a persistent threat throughout the entire growing season. Early detection and preventive, [...] mildew vary according to the phenological growth stage and the severity of the infection. Early signs manifest as chlorotic (pale green to yellow) spots, which [...] the pathogen colonizes the epidermis, causing the skin to lose elasticity. This frequently leads to berry cracking, which severely compromises fruit quality