Photo 1. Lettuce leaf spot, Cercospora lactucae-sativae. Some spots have joined together, especially at the margins.
Photo 3. Brown leaf spots, Cercospora lactucae-sativae, on an older leaf. This is where the infections begin.
Lettuce leaf spot
Cercospora lactucae-sativae; previously known as Cercospora longissima. It is closely related to Cercospora apii.
AUTHOR Grahame Jackson
Photos 1&2 Kohler F, Pellegrin F, Jackson G, McKenzie E (1997) Diseases of cultivated crops in Pacific Island countries. South Pacific Commission. Pirie Printers Pty Limited, Canberra, Australia.
Produced with support from the Australian Centre for International Agricultural Research under project PC/2010/090: Strengthening integrated crop management research in the Pacific Islands in support of sustainable intensification of high-value crop production, implemented by the University of Queensland and the Secretariat of the Pacific Community.
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