Plasmopara chaerophylli (Caspary) Trotter, 1926
on Anthriscus, Chaerophyllum
Anthriscus sylvestris, Belgium, prov. Antwerp, Geel, Neerhelst © Carina Van Steenwinkel
hypophyllous down
conidiophores (congo red staining)
conidia
gall
upperside of the leaf locally yellowed and blistered; corresponding underside with a greyish-white fungal bloom, consisting of erect, branched conidiophores.
hostplants
Apiaceae, narrowly oligophagous
Anthriscus cerefolium, nitidus, sylvestris; Chaerophyllum aromaticum, aureum, bulbosum, temulum.
references
Brandenburger (1085a), Doppelbaur, Huber & Poelt (1965a), Jage, Klenke, Kruse ao (2017a), Klenke & Scholler (2015a), Müller (2015a), Müller & Kokeš (2008a), Redfern & Shirley (2011a).
mod 2.ix.2018