Herbarium Catalogue.

Royal Botanic Gardens Kew, (2020). Herbarium Catalogue Royal Botanic Gardens Kew, Richmond, UK. English language

Virtual Herbaria Austria.

Virtual Herbaria Austria, (2020). Virtual Herbaria Austria University of Vienna, Vienna, Austria. English language

First report of brown rot on peach, nectarine, cherry, and plum fruits caused by Monilinia fructicola in Bulgaria.

Bobev, S. G., Angelov, L. T., Poucke, K. van, Maes, M., (2020). Plant Disease 104(5), 1561-1561. American Phytopathological Society (APS Press), St. Paul, USA. English language

First report of Phytophthora pistaciae causing root and collar rot on nursery plants of Pistacia lentiscus in Italy.

Linaldeddu, B. T., Mulas, A. A., Bregant, C., Piras, G., Montecchio, L., (2020). Plant Disease 104(5), 1564-1564. American Phytopathological Society (APS Press), St. Paul, USA. English language

A phytoplasma survey reveals the presence of 'Candidatus Phytoplasma fragariae' in Ulmus spp. and Acer pseudoplatanus in Belgium.

Jonghe, K. de, Goedefroit, T., Deeren, A. M., Fauche, F., Steyer, S., (2020). Forest Pathology 50(5) Wiley, Berlin, Germany. English language

Continuing expansion of non-indigenous crayfish species in Northern Europe: first established spiny-cheek crayfish Faxonius limosus (refinesque, 1817) population in Estonia.

Kaldre, K., Paaver, T., Hurt, M., Gross, R., (2020). BioInvasions Records 9(1), 127-132. Regional Euro-Asian Biological Invasions Centre (REABIC), Helsinki, Finland. English language

North European and Baltic Network on Invasive Alien Species.

NOBANIS, (2020). North European and Baltic Network on Invasive Alien Species English language

Invasive species compendium.

Rojas-Sandoval, J., (2020). Invasive Species Compendium(3853) CABI, Wallingford, UK. English language

First report of Stromatinia gladioli causing neck and corm rot of Crocus sativus in Spain.

Muñoz, R. M., Lerma, M. L., Castillo, P., Armengol, J., Somoza, E., Woodhall, J. W., (2020). Plant Disease 104(1), 282-282. American Phytopathological Society (APS Press), St. Paul, USA. English language

First report of Phytophthora acerina, P. pini, and P. plurivora causing root rot and sudden death of olive trees in Italy.

Linaldeddu, B. T., Bregant, C., Montecchio, L., Favaron, F., Sella, L., (2020). Plant Disease 104(3), 996-996. American Phytopathological Society (APS Press), St. Paul, USA. English language