Stemphylium botryosum

{{Short description|Species of fungus}}

{{Speciesbox

| image =Schnittlauch_Stemphyllium_botryosum_-_Jan_Hinrichs-Berger,_LTZ_Augustenberg.jpg

| genus = Stemphylium

| species = botryosum

| image_caption = Chives (Allium schoenoprasum) with a Stemphylium botryosum infestation on the leaf tips.

| authority = Wallr., (1833)Wallr., Fl. crypt. Germ. (Norimbergae) 2: 300 (1833)

| synonyms = {{Taxon list

|Pleospora tarda|E.G. Simmons, Sydowia 38: 291 (1986)

|Stemphylium botryosum subsp. asperulum|Sacc., Michelia 2(no. 7): 376 (1881)

|Stemphylium botryosum var. domesticum|Sacc., Syll. fung. (Abellini) 4: 522 (1886)

|Stemphylium domesticum |(Sacc.) Mussat, in Saccardo, Syll. fung. (Abellini) 15: 402 (1901)

|Stemphylium botryosum var. caulium|Roum., Revue mycol., Toulouse 9(no. 33): 29 (1887)

|Stemphylium botryosum var. tragopogonis|Linn, Phytopathology 32: 154 (1942)

|Stemphylium botryosum f. lactucum|Padhi & Snyder, Phytopathology 44: 179 (1954)

|Stemphylium botryosum var. majus|Bat. & J.L. Bezerra [as 'major'], Publicações Inst. Micol. Recife 343: 17 (1962) }}

}}

Stemphylium botryosum (family Pleosporaceae, order Pleosporales) is a species of fungi and plant pathogen infecting several hosts including alfalfa, red clover, peanut, soybean, lentils, beet, tomato, lettuce, hemp and carnations.

It was originally found on Medicago sativa (Alfalfa) in Ontario, Canada and named as Pleospora tarda {{Au|E.G Simmons}} but it was later found to be the anamorph of Stemphylium botryosum {{Au|Wallr. 1833}}.{{cite web |title=Species Fungorum - Names Record |url=https://www.speciesfungorum.org/Names/NamesRecord.asp?RecordID=130295 |website=www.speciesfungorum.org |access-date=8 August 2023}}