Erysiphe cichoracearum

Cucumbers Powdery mildew Erysiphe cichoracearum Bordeaux mixture, copper ammonium carbonate... 

Cole, J.S. Fernandez, D.L. (1970) Changes in the Resistance of Tobacco Leaf to Erysiphe cichoracearum D.C. Induced by Topping, Cytokinins and Antibiotics. Annals of Applied Biology 66, 239-243. 

Disease resistance represents one of the more difficult traits for selection. The primary diseases impacting Jerusalem artichoke production are sclerotinia wilt/rot (Sclerotinia sclerotiorum (Lib.) de Bary), rust (Puccinia helianthi Schw.), southern wilt/blight/collar rot (Sclerotium rolfsii Sacc.), and powdery mildew (Erysiphe cichoracearum DC.) (see Chapter 11). The importance of each disease is dependent upon the production site. For example, in Europe, sclerotinia is a critical disease, while rust and southern wilt are important diseases in North American production areas. Powdery mildew tends to be less important, in that Jerusalem artichoke appears to have reasonable levels of endogenous resistance. 

An obligate ascomycetes, Erysiphe cichoracearum DC., powdery mildew, can be moderately severe on some Jerusalem artichoke lines in the southern U.S., while others remain essentially disease-free (McCarter, 1993). E. cichoracearum infects a wide range of species, especially so in the Compositae family. It is found worldwide and is especially critical in the hot, humid tropics and subtropics. Damage in temperate regions tends to be limited. The disease appears as white to gray areas on the leaves and occasionally on the stems, which is caused by superficial mycelium. With... 

This active substance is also specifically effective only against powdery mildews, but its range of action is much wider than that of the other known members of the hydroxypyrimidine group. It is most effective against apple powdery mildew Podosphera leucotricha), cucurbit (Erysiphe cichoracearum) and rose (Sphaero-theca pannosa) powdery mildews. 

Table 7.2 Field test results of 3d and 3e against Erysiphe cichoracearum on cucumber. ...

RamoneU, K., Berrocal-Lobo, M., Koh, S. et al. 2005. Loss of function mutations in chitin responsive genes show increased susceptibUity to the powdery mildew pathogen Erysiphe cichoracearum. Plant Physiol., 138 1027-1036. 

Erysiphe cichoracearum Phytopathogenous fungus Fungus Blaeser et al. (2002)... 

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