First report of Puccinia hemerocallidis in Portugal
Puccinia hemerocallidis (EPPO A2 List) is reported for the first time in Portugal. In November 2015, rust symptoms were observed on daylily plants (Hemerocallis sp.) in gardens in the areas of Lisbon and Tavira (mainland Portugal), and in Funchal (Madeira island). A study was conducted and the disease was found on H. lilioasphodelus in 6 out of the 9 gardens surveyed, with an incidence reaching 85 to 90%. Bright orange pustules, often covering a large part of the leaves (25 to 75% of leaf surface), were observed. Laboratory analysis (morphology, pathogenicity tests) confirmed the identity of the fungus. The authors noted that this first report in Portugal is also a first record for Europe. The possible dissemination of P. hemerocallidis into the European daylily industry, with over 2 000 European-bred cultivars, raises concerns.
The situation of Puccinia hemerocallidis in Portugal can be described: Present, first found in 2014 in several gardens in mainland Portugal and Madeira.
Sources
Silva E, Carvalho R, Nunes N, Ramos AP, Talhinhas P (2016) First report of Puccinia hemerocallidis causing daylily rust in Europe. Plant Disease 100(10), p 2163.