Podosphaera fusca

{{Short description|Species of fungus}}

{{Speciesbox

| image = Podosphaera.fusca.-.lindsey.jpg

| image_caption = Leaf damage from Podosphaera fusca

| genus = Podosphaera

| species = fusca

| authority = (Fr.) U. Braun & Shishkoff, (2000)

| synonyms =

Erysiphe erigerontis-canadensis Lév., (1843)

Erysiphe fusca Fr., (1829)

Sphaerotheca elsholtziae Z.Y. Zhao, (1981)

Sphaerotheca erigerontis-canadensis (Lév.) L. Junell, (1966)

Sphaerotheca fusca (Fr.) S. Blumer, (1933)

Sphaerotheca melampyri L. Junell, (1966)

Sphaerotheca phtheirospermi Henn. & Shirai, (1900)

}}

Podosphaera fusca is a fungus that parasitically infects plants (a phytopathogen). It is one cause of powdery mildew in melons and gourds.{{cite journal |title=The powdery mildew fungus Podosphaera fusca (synonym Podosphaera xanthii), a constant threat to cucurbits |last1=Pérez-García|first1=A.|last2=Romero|first2= D. |last3=Fernández-Ortuño|first3=D. |last4=López-Ruiz|first4=F. |last5=De Vicente|first5=A. |last6=Torés Montosa|first6=Juan Antonio |journal=Molecular Plant Pathology |volume=10 |issue=2 |pages=153–160 |date=March 2009 |doi=10.1111/j.1364-3703.2008.00527.x |pmid=19236565 |pmc=6640438}} First published online 9 December 2008, {{doi|10.1111/j.1364-3703.2008.00527.x}}.

Some sources suggest that P. fusca should be considered synonymous with P. xanthii, while others maintain they are separate species in the subsection Magnicellulata of the section Sphaerotheca of the genus Podosphaera, {{as of|lc=y|2011}}, based on the size of chasmothecia, and on the thin-walled portion of the asci (oculus).{{cite journal |title=Podosphaera xanthii but not Golovinomyces cichoracearum infects Cucurbits in a Greenhouse at Salinas, California |first1=Cosme|last1=Bojorques Ramos |first2=Karunakaran|last2=Maruthachalam |first3=James D.|last3=McCreight |first4=Raymundo S.|last4=Garcia Estrada |journal=Cucurbit Genetics Cooperative Report |volume=33–34 |issue=24–28 |date=2010–2011 |pages=24–26 |url= http://cuke.hort.ncsu.edu/cgc/cgc3334/cgc3334-7.pdf |access-date=10 August 2015}}