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).

mod 12.x.2019