Peronospora


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Noun1.Peronospora - genus of destructive downy mildewsPeronospora - genus of destructive downy mildews  
fungus genus - includes lichen genera
family Peronosporaceae, Peronosporaceae - parasitic fungi: downy mildews
blue mold fungus, Peronospora tabacina - fungus causing a serious disease in tobacco plants characterized by bluish-grey mildew on undersides of leaves
onion mildew, Peronospora destructor - fungus causing a downy mildew on onions
Peronospora hyoscyami, tobacco mildew - fungus causing a downy mildew on growing tobacco
References in periodicals archive ?
The four best-known genera are Peronospora, Plasmopara, Pythium and Phytophthora.
The control of fungal diseases, mainly mildew (Peronospora destructor) and Alternaria solani was carried out with six applications of fungicides, four of metalaxyl (40g [L.sup.-1]) + mancozeb (640g [L.sup.-1]) at 35, 50, 65 and 80 DAT and two of tebuconazole (200 mL [L.sup.-1]) + trifloxystrobin (100 mL [L.sup.-1]) at 80 and 94 DAT.
The most limiting bunching onion diseases in the Boyaca region are downy mildew (Peronospora destructor) and the root rot (Burkholderia cepacia-Ditylenchus dipsaci complex).
Carbohydrate change in Tobacco systemically protected against blue mold by stem infection with Peronospora tabacina.
But fenugreek suffers from many fungal diseases viz., Cercospora leaf spot caused by Cercospora traversiana, root rot (Rhizoctonia solani), leaf spot (Ascochyta sp.), powdery mildew (Erysiphe polygoni), downy mildew (Peronospora trigonellae) and Fusarium wilt (Fusarium oxysporum) (Prasad et al., 2014) (3).
La enfermedad que aparece en orden de importancia es la Plasmopara viticola, o mildiu, o peronospora. (104) Se reporta la aparicion en Italia y en referencia a la sintomatologia se expresa que "la planta ech[o] algunos brotes, pero la enfermedad destruyo tambien mas tarde las uvas, que llegaron a secarse y aun a perder su color [...] la plaga se propago por sus esporos [...]" (RARU, 1882).
Soybean [Glycine max (L.) Merill)] can be attacked by several diseases, among which downy mildew caused by Peronospora manshurica (Naumov) Syd.can cause 8 to 14% damage to U.S.
Historically, this Qomycete was originally described by Farlow in 1882 as Peronospora halstedii, the name referring to Halsted, who first collected it on Eupatorium purpureum.