Field Susceptibility of Almond (Prunus dulcis) Cultivars to Red Leaf Blotch Caused by Polystigma amygdalinum in Apulia (Italy) and Influence of Environmental Conditions.

ABSTRACT: Polystigma amygdalinum the causal agent of Red Leaf Blotch (RLB), is responsible for one of the most important foliar diseases affecting almond [Prunus dulcis (Miller) D.A. Webb] in the Mediterranean Basin and the Middle East. The study is aimed at improving knowledge on RLB epidemiology and the role of environmental conditions in disease development. Field monitoring was conducted from 2022 to 2025 in three almond orchards located in Apulia (southern Italy) and characterized by different microclimatic conditions. A total of 39 cultivars, including Apulian local germplasm and international cultivars ('Belona', 'Genco', 'Guara', 'Ferragnès', 'Filippo Ceo', 'Lauranne^® Avijor', 'Soleta', and 'Supernova'), were evaluated. Symptoms occurred from late spring to summer, r

SUBMITTER: Lucchese PG 

PROVIDER: S-EPMC12845356 | biostudies-literature | 2026 Jan

REPOSITORIES: biostudies-literature