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• Rust diseases of cultivated grass species

  77-85

  Zsolt Varga

  Geza Fischl

  Views:

  70

  The authors made plant pathological investigations of 10 cultivated grass species and cultivars from September 2004 to June 2007. The aim was to determine species diversity and dominance relations of rust diseases of grasses. Four rust species (Puccinia recondita, P. graminis, P. coronata, P. striiformis) were determined on grasses, from among which crown rust (P. coronata), leaf rust (P. recondita) and their forma specialis caused higher infection. The first significant rust infection of grasses was observed on turion after harvesting at the end of July. The maximum value of rust fungi infection was determined in September. This work gives information on rust fungi incidence on cultivated grass species and discusses the curve of seasonal epidemic caused by Puccinia species.

• Fungal leaf spot diseases of cultivated grasses

  34-42

  Zsolt Varga

  Geza Fischl

  Views:

  74

  The authors made plant pathological investigations and data collections on grass species important in their seed production areas in Hungary (Keszthely) and Austria (Irdning). The aim was to determine species diversity and dominance relations of plant pathogenic fungal species found on the cultivated grasses of the two ecologically different locations. The present work details only the leaf spot causing fungi and does not inform on rust causing fungi, powdery mildew, and smuts. The work gives information on fungal incidence on grass species, their importance and symptoms of disease caused by Cercosporidium graminis, Ramularia pusilla, Drechslera spp., Bipolaris spp., Mastigosporium spp., Septoria, Ascochyta spp. and Colletotrichum graminicola.