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The European spruce bark beetle (Ips typographus) outbreak observed in the ‘Puszcza Białowieska’ Promotional Forest Complex since 2012 resulted in a total volume of 1.4 million m³ of dead trees in multiple spruce stands. The study aimed to assess the species composition of fungi occurring in spruce trunks at early stages of European spruce bark beetle attack. All the samples used in laboratory analyses...
Since its initial discovery in 1945, pitch canker caused by Gibberella circinata (anamorph Fusarium circinatum) has become one of the most important pine diseases in the world. It infests 57 pine species (including Pinus sylvestris) and Douglas−fir. F. circinatum has been reported in both nurseries and forests on all continents except Australia and Oceania. Both vegetative and reproductive parts of...
Pathogenic oomycetes represented mainly by the species of Phytophthora genus are among the most dangerous plant pathogens. They pose a serious threat for agricultural as well as wild plants, and are involved in forest decline worldwide. Over 140 pathogenic Phytophthora species have been identified so far. The common infection symptoms include rotting of below− and aboveground parts of plants, causing...
The work concerned the ascomycetous fungus Eutypella parasitica, which for several decades has been present in North America, where it attacks various species of maple. In 2005, for the first time it was recorded in Europe, in Slovenia. Later on it was found in Austria, Croatia, Germany, Hungary and the Czech Republic. In 2016 for the first time the species was reported in Poland, in the Polish−Czech...
Dieback of common ash is a worrying phenomenon that emerged in the early 1990s. The first symptoms were observed in 1992 in Poland. In 1996 the plague appeared in Lithuania, followed by Germany, Denmark, Czech Republic, Austria, Slovenia, Sweden and France (2002−2009), to finally reach the British Isles in 2012. At the beginning it was said about the disease of ash, but a few years later it became...
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