Heterodera avenae Wollenweber, 1924
gall
tje roots are abnormally short and strongly bushy branched. From mid-summer numerous globular bodies are attached, half a mm large, initially white, later yellowish brown to dark brown. They are cysts, the rear part of the females, filled with eggs. Inside the roots live numerous nematodes. Infected plants are strongly weakened.
host plants
Poaceae, oligophagous
Avena fatua, sativa; Bromus; Festuca; Hordeum; Lolium; Poa; Secale cereale; Trisetum; Triticum aestivum & subsp. spelta, monococcum, turgidum subsp. dicoccon + durum + polonicum; Zea mays.
references
Bongers (1988a), Buhr (1964b, 1965a), Griffin (1988a), Maafi, Sturhan, Kheiri & Geraert (2007a), Melgarejo Nárdiz, García-Jiménez, Jordá Gutiérrez ao (2010a), Roskam (2019a).