Grapevine powdery mildew
mildew (Erysiphe necator) is a widespread fungal disease that poses a serious threat to commercial viticulture worldwide. The pathogen (also known as Uncinula [...] 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 [...] During berry development, the pathogen colonizes the epidermis, causing the skin to lose elasticity. This frequently leads to berry cracking, which severely