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Agrociencia
versão On-line ISSN 2521-9766versão impressa ISSN 1405-3195
Resumo
DOMINGUEZ-SERRANO, Daniel et al. The rose powdery mildew (Podosphaera pannosa). Agrociencia [online]. 2016, vol.50, n.7, pp.901-917. ISSN 2521-9766.
In Mexico the rose (Rosa sp.) is an ornamental species with economic importance and one of the most sought ornamental flowers; among the diseases that affect it the powdery mildew stands between them. This disease is caused by the biotroph Podosphaera pannosa which affects productivity, quality, marketing and production costs. The fungicides used to control this disease include demethylation and ergosterol biosynthesis inhibitors, and strobilurins which inhibit mitochondrial respiration. Some of these fungicides lose their effectiveness due to resistance the pathogen has acquired. The development of this pathogen is conditioned by different biotic and ecological aspects, as well as its genetic variability; although there is a broad range of control measures, both genetic and biological, these are insufficient. Currently, the alternative is to use resistance inducers such as potassium phosphite, silicon and acibenzolar-s-methyl, against pathogens as Peronospora sparsa and P. pannosa in rose cultivation. In this research the current information about the rosebush powdery mildew was analyzed and prospects for future studies of the disease.
Palavras-chave : Rosa sp.; Podosphaera pannosa; Erysiphales; ornamental plants.