Heterodera hordecalis(HETDHO)
Distribution details in Sweden
* Andersson S (1976) Occurrence and behaviour of Heterodera hordecalis Andersson and H. bifenestra Cooper in Sweden, with some references to H. avenae Wollenweber and a similar Heterodera sp. Meddelanden Statens Vaztskyddsanstalt 16(170), 245-287.
* USDA (1985) Pests not known to occur in the United States or of limited distribution. No. 70. Heterodera hordecalis. USDA APHIS-PPQ, Beltsville, USA.
* USDA (1985) Pests not known to occur in the United States or of limited distribution. No. 70. Heterodera hordecalis. USDA APHIS-PPQ, Beltsville, USA.