''Peyronellaea curtisii'' (leaf scorch) is a fungal plant pathogen first described by
Miles Joseph Berkeley and received its current name in 2010.
Formerly it was ''Stagonospora'' (syn. ''Stagonosporopsis'') ''curtisii''. It is a cause of leaf blotch, and its substrates include ''
Narcissus
Narcissus may refer to:
Biology
* ''Narcissus'' (plant), a genus containing daffodils and others
People
* Narcissus (mythology), Greek mythological character
* Narcissus (wrestler) (2nd century), assassin of the Roman emperor Commodus
* Tiberiu ...
'', ''
Galanthus
''Galanthus'' (from Ancient Greek , (, "milk") + (, "flower")), or snowdrop, is a small genus of approximately 20 species of bulbous perennial herbaceous plants in the family Amaryllidaceae. The plants have two linear leaves and a single ...
'' and ''
Hippeastrum''.
Symptoms
''Peyronellaea curtisii'' causes red-brown spots on leaf tips of ''Narcissus'' and other members of the family Amaryllidaceae; this gives them a scorched appearance that is easily mistaken for frost damage. A yellowish discolouration then spreads down the leaf; more spots may develop as the leaf withers, turns brown and die away. Minute black fungal fruiting bodies may be visible on the foliage. The flowers and flower stalks may also display brown spots and marks.
On hippeastrum bulbs the fungus causes red spots that may develop into soft, sunken patches. Leaf scorch fungus can also affect other members of the ''
Amaryllidaceae
The Amaryllidaceae are a family of herbaceous, mainly perennial and bulbous (rarely rhizomatous) flowering plants in the monocot order Asparagales. The family takes its name from the genus ''Amaryllis'' and is commonly known as the amaryllis fa ...
'', including ''
Amaryllis'', ''
Crinum'', ''
Nerine
''Nerine'' (nerines, Guernsey lily, Jersey lily, spider lily) is a genus of flowering plants belonging to the family (biology), family Amaryllidaceae, subfamily Amaryllidoideae. They are bulbous perennial plant, perennials, some evergreen, asso ...
'', ''
Sprekelia'' and ''
Sternbergia
''Sternbergia'' is a genus of Eurasian and North African plants in the Amaryllis family, subfamily Amaryllidoideae.Waldstein, Franz de Paula Adam von & Kitaibel, Pál. 1804. Descriptiones et Icones Plantarum Rariorum Hungariae 2: 172
The genus ...
''.
RHS:Narcissus leaf scorch
/ref>
References
Bibliography
*
*
Fungal plant pathogens and diseases
Pleosporales
Fungi described in 2010
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