EFSA Panel, P.L.H., Civera, A.V., Baptista, P., Berlin, A., Chatzivassiliou, E., Cubero, J., Cunniffe, N., de la Peña, E., Desneux, N., Di Serio, F., Filipiak, A., Hasiów-Jaroszewska, B., Jactel, H., Landa, B.B., Maistrello, L., Makowski, D., Milonas, P., Papadopoulos, N.T., Potting, R., Susi, H., van der Gaag, D.J., Battisti, A., Bragard, C., Mas, H., Rigling, D., Faccoli, M., Mikulová, A., Stergulc, F., Mosbach-Schulz, O., Streissl, F., & Gonthier, P. 2026a Commodity risk assessment of oak and walnut logs from the US. EFSA Journal 24: e9806

Keywords:

control

economic importance

host

Notes: The European Commission submitted to the EFSA Panel on Plant Health a Dossier from the United States proposing the use of a vacuum–steam–heat treatment as a stand-alone phytosanitary measure to mitigate the risk of entry of Bretziella fagacearum, Geosmithia morbida and its vector Pityophthorus juglandis (thousand cankers disease complex) into the EU when trading oak (Quercus alba, Q. rubra) and walnut (Juglans nigra) logs with bark from the US. EFSA assessed the likelihood that logs of oak and walnut target species would be free from EU quarantine pests, basing its evaluation solely on the efficacy of the proposed treatment. Among other pests, Lopholeucaspis japonica was selected for further evaluation. https://doi.org/10.2903/j.efsa.2026.9806

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