Alien Pests Can Spread Quickly: Wooly Ash Aphid Prociphilus fraxinifolii (Hemiptera: Eriosomatidae) Has Occupied Europe in 18 Years

Prociphilus fraxinifolii (woolly ash aphid) is a pest of trees (Fraxinus spp.). This species, which native to North America, was first recorded in Europe 2003, Budapest, and then began spread quickly. In 2019–2021, we detected P. Belarus (Brest) eight regions European Russia, namely Astrakhan, Nizhny Novgorod, Samara, Saratov, Smolensk, Tambov, Volgograd Voronezh regions. By 2021, has over vast territory Europe: from Spain the west Volga River east. The distance between westernmost easternmost localities 4180 km. known range disjunctive: Armenia, Belarus, Bulgaria, Germany, Great Britain, Hungary, Poland, Romania, 16 Russia. case indicates that some alien pests are able occupy whole less than two decades after record continent. It can infest species F. excelsior, but all our findings, as well most findings indicated literature, were on pennsylvanica introduced America. We never found excelsior even near infested trees.