Occurrence of powdery mildew on camelina in Entre Ríos, Argentina
DOI:
https://doi.org/10.14409/fa.2025.24.e0042Keywords:
Camelina sativa, Pseudoidium, Erysiphe, diseaseAbstract
In Argentina, the cultivation of winter brassicas is strategic for the sustainable management of agricultural systems and as a diversification alternative to winter cereals. At the beginning of October 2024, in the central west of the province of Entre Ríos, Argentina, camelina plants were observed with small areas similar to “patches”, whitish to grayish, powdery in appearance and located mainly on the upper part of the lower leaves, compatible with the characteristic sign of powdery mildew. The objectives were to biologically characterize and identify the causal organism of a disease observed on camelina plants in central western Entre Ríos, Argentina. The morphometry of the fungus and the signs and symptoms observed on leaves, stems, twigs, and silicules coincided with the descriptions made for Pseudoidium sp., anamorphic or asexual stage of Erysiphe sp. The absence of the teleomorphic stage of the fungus requires further studies to corroborate the identity of the species. As far as is known, this is the first mention of powdery mildew affecting camelina in Argentina.
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