Peanut leaf spot caused by Nothopassalora personata

GIORDANO, FRANCISCO; ODDINO, CLAUDIO; PALACIOS, SOFÍA; PASTOR, NICOLÁS; TORRES, ADRIANA

TROPICAL PLANT PATHOLOGY

SOC BRASILEIRA FITOPATHOLOGIA

Año: 2021 p. 139 - 151

1982-5676

Nothopassalora personata is a cosmopolitan plant pathogenic fungus that causes late leaf spot (LLS) of peanut, the main foliar 13 diseases of this crop. The disease emerged during the last decade in the USA and Argentina. Severely affected plants are early 14 defoliated and yield is decreased by 40?50%. During the last decades, effective LLS management worldwide has been achieved 15 using chemical fungicides, which may negatively affect human and animal health as well as the natural stasis of the soil native 16 microbiota. This review provides an updated view of the new research conducted to understand and effectively manage the 17 disease, based mainly on host plant resistance judicious use of fungicides together with other cultural practices such as crop 18 rotation. Breeding for resistance remains challenging, but new SNPsmarkers for leaf spot diseases have beenmapped and may be 19 useful for improving host resistance which can reduce reliance on fungicides, especially after the ban of chlorothalonil in the E.U. 20 Biocontrol using bacterial and fungal agents open new possibilities to reduce the use of chemical fungicides.