* Evans IR (1996) Impact of fire blight on rosaceous species in central Alberta. Acta Horticulturae 411, 27-28.
* Giorgi S, Scortichini M (2005) Molecular characterization of Erwinia amylovora strains from different host plants through RFLP analysis and sequencing of hrpN and dspA/E genes. Plant Pathology 54, 789-798.
* Van der Zwet, Keil HL (1979) Fire blight: a bacterial disease of rosaceous Plants. USDA Handbook no. 510. USDA, Washington (US), 200 p.
* Gavrilovic V, Obradovic A, Milajasevic S, Zivkovic S, Arsenijeviec M, Vojinovic M (2008) Sorbus sp - New host of Erwinia amylovora in Serbia. Acta Horticulturae 793, 351-355.
* Ahmed M, van de Vossenberg BTLH, Cornelisse C, Karssen G (2013) On the species status of the root–knot nematode Meloidogyne ulmi Palmisano and Ambrogioni, 2000 (Nematoda, Meloidogynidae). ZooKeys 362: 1-27.
------- confirmed host
* Yee WL, Norrbom AL (2017) Provisional List of Suitable Host Plants of the Apple Maggot Fly, Rhagoletis pomonella (Walsh) (Diptera: Tephritidae), Version 1.0, 20pp, in USDA Compendium of Fruit Fly Host Information (CoFFHI)
Edition 2.0; https://coffhi.cphst.org/.
------- confirmed host
* Yee WL, Goughnour RB (2008) Host use by and new host records of apple maggot, western cherry fruit fly, and other Rhagoletis species (Diptera: Tephritidae) in western Washington state. Pan-Pacific Entomologist 84: 179–193
