Septoria are ascomycete pycnidia-producing fungi that cause numerous leaf spot diseases on field crops, forages and many vegetables including tomatoes which are known to contract Septoria musiva from nearby cottonwood trees, and is responsible for yield losses. The genus is widespread, and estimated to contain 1072 species. Pycnidia produce needle-like pycnidiospores.
Zymoseptoria tritici, synonyms Septoria tritici, Mycosphaerella graminicola, is a species of filamentous fungus, an ascomycete in the family Mycosphaerellaceae. It is a wheat plant pathogen causing septoria leaf blotch that is difficult to control due to resistance to multiple fungicides. The pathogen today causes one of the most important diseases of wheat.
Phaeosphaeria nodorum is a major fungal pathogen of wheat, causing the disease Septoria nodorum blotch. It is a member of the Dothideomycetes, a large fungal taxon that includes many important plant pathogens affecting all major crop plant families.
Septoria aciculosa is a fungal plant pathogen infecting strawberries. This pathogen primarily affects coniferous trees, particularly those in the pine family (Pinaceae). This fungus is known to cause a specific disease called "needle cast" or "Septoria needle cast."
Septoria ampelina is a fungal plant pathogen that affects grapes causing septoria leaf spot.
Septoria azaleae is a fungal plant pathogen infecting azaleas.
Septoria campanulae is a fungal plant pathogen infecting bellflowers. It is closely related to other species from hosts in Apiaceae, such as Septoria aegopodina and Septoria oenanthis.
Septoria citri is a fungal plant pathogen infecting citruses.
Septoria cucurbitacearum is a fungal plant pathogen infecting cucurbits. Symptoms of Septoria leaf spot are similar on all the cucurbits infected.
Septoria helianthi, also known as Septoria leaf spot, is a fungal plant pathogen infecting sunflowers.
Septoria humuli is a fungal plant pathogen infecting the hop plant.
Septoria hydrangeae is a fungal plant pathogen infecting hydrangeas.
Septoria lactucae, or lettuce septoria blight, is a pathogenic leaf fungus that is found on lettuce.
Septoria menthae is a fungal plant pathogen infecting mint. It is the causal organism of mint leafspot.
Septoria ostryae is a fungal plant pathogen infecting hazelnut. It causes discoloured blotches on the foliage and can cause leaves to drop prematurely.
Septoria pisi is a fungal plant pathogen infecting peas.
Septoria selenophomoides is a fungal plant pathogen infecting orchids. It causes leaf spots, starting with small yellowish lesions on the plant's leaves and darkening to brown or black. If the infection develops further, the leaves and fruit fall from the orchid and spread the infection.
Septoria secalis also known as Septoria Leaf Blotch is a fungal plant pathogen infecting rye.
Septoria fragariaecola is a fungal plant pathogen infecting strawberries.
Mycosphaerella eumusae is a fungal disease of banana, causing Eumusae leaf spot. Its symptoms are similar to black leaf streak. M. eumusae is the predominant Mycospharella of banana in mainland Malaysia and in Thailand, and is present in Mauritius and Nigeria. Septoria eumusae is an anamorph of Mycosphaerella eumusae.
