Onions - a new host for Meloidogyne chitwoodi
In California (US) young onion plants (Allium cepa) showed severe stunting and root galling. Reason for these symptoms were investigated and it was found that Meloidogyne chitwoodi (potential EPPO A2 quarantine pest) was the causal agent of this disease. The pathogenity of the nematodes was confirmed in greenhouse tests. This is the first report of the root-knot nematode infesting onions.
Sources
Westerdahl, B.B.; Anderson, C.E.; Noffsinger, E.M. (1993) Pathogenicity of the Columbia root-knot nematode (Meloidogyne chitwoodi) to onions.
Plant Disease 77, p. 847.