Acute oak decline (AOD) is a relatively newly described disease. Symptomatic trees are characterised by stem bleeds, necrotic lesions in the live tissue. Several abiotic and biotic factors can be responsible for tree death, however the tissue necrosis and stem weeping is thought to be caused by a combination of bacterial species. Bueno-Gonzalez V, Brady C, Denman S, Plummer S, Allainguillaume J, Arnold D. have described Pseudomonas daroniae sp. nov. and Pseudomonas dryadis sp. nov., as probable causing agents of the disease. (International Journal of Systematic and Evolutionary Microbiology. 2019 Aug 7:ijsem003615.) Is AOD different from wet wood disease? We have isolated Pseudomonas dryadis from other trees with wet wood symptoms.