Кл.слова (ненормированные):
Ash -- Forest health -- Fraxinus -- Invasive pest -- Pest insects -- Range expansion -- Accidents -- Expansion -- Food supply -- Population statistics -- Agrilus planipennis -- Ash trees -- Coleoptera -- Emerald ash borer -- Far North -- Most likely -- Plantings -- Population densities -- Forestry
Аннотация: Agrilus planipennis is a devastating invasive pest of ash trees in European Russia, Ukraine, and North America. To monitor the north-western limit of its European invasive range, in June 2018 we established 10 study plots along the federal highway M10 (Russia) that runs between Moscow and Saint Petersburg through Tver’ City (approx. 180 km from Moscow), and lined with ash trees. On each plot, 2–4 Fraxinus pennsylvanica trees with heights ranging 6.1–17.0 m and diameters ranging 7.0–18.0 cm were girdled, i.e., 50 cm of their bark were removed. The study plots were visited and girdled trees were examined in September and November, 2018, and in October, 2019. Observations revealed that the current continuous north-western limit of A. planipennis range in European Russia coincides with the north-western border of Tver’ City and this range limit has not distinctly shifted north-westward during 2015–2019. In spite of the rich food supply (due to abundant F. pennsylvanica and F. excelsior plantings) in Tver’ City and along roads going to and from, the population density of A. planipennis in the area is currently low. Recent (September 2020) sudden detection of a spatially isolated A. planipennis outbreak approx. 520 km far north-westward from Tver’ (in Saint Petersburg) suggested that A. planipennis most likely had arrived at Saint Petersburg not by gradual stepwise (flying tree-to-tree) expansion of its continuous invasive range in Tver’ City, but as a result of its accidental introduction by means of, e.g., “insect-hitchhiked” vehicles, transported plants for planting, and/or other commodities. The proximity of the reported A. planipennis outbreak to the borders of the EU (approx. 130 km to Estonia and Finland) requires urgent measures for its containment and control, and constant monitoring. © 2021 by the authors. Licensee MDPI, Basel, Switzerland.
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Держатели документа:
Department of Forest Protection, Wood Science and Game Management, Saint Petersburg State Forest Technical University, Institutskiy Per. 5, Saint Petersburg, 194021, Russian Federation
Department of Biogeography and Environmental Protection, Saint Petersburg State University, Universitetskaya Nab. 7–9, Saint Petersburg, 199034, Russian Federation
Department of Forest Zoology, V.N. Sukachev Institute of Forest, Federal Research Center “Krasnoyarsk Science Center of the Siberian Branch of the Russian Academy of Sciences”, Akademgorodok 50, Krasnoyarsk, 660036, Russian Federation
Department of Forest Mycology and Plant Pathology, Swedish University of Agricultural Sciences, Uppsala, SE-750, Sweden
Доп.точки доступа:
Musolin, D. L.; Selikhovkin, A. V.; Peregudova, E. Y.; Popovichev, B. G.; Mandelshtam, M. Y.; Baranchikov, Y. N.; Vasaitis, R.