Recent field surveys conducted in five common alder ecosystems in Portugal have shown
the occurrence of severe canopy dieback, bleeding canker and root rot symptoms indicative …

Waterways are ideal pathways for Phytophthora dispersal and potential introduction to
terrestrial ecosystems. While many Phytophthora species from phylogenetic clades 6, 9 and …

Between 2010 and 2015, an extensive survey of Phytophthora diversity was performed
across Portugal. Baiting and direct isolation tests obtained 48 Phytophthora taxa in 62 of 70 …

Extensive decline and mortality events of alder trees have recently been observed in several
riparian ecosystems in Italy. Since there is little information about the aetiology of this …

In western Ukraine, forest decline and dieback of several broadleaved tree species have
become increasingly evident during recent years, and surveys in some areas have shown …

Since the early 1990s, common alder (Alnus glutinosa) trees showing a variety of symptoms
such as a partial or complete canopy dieback, reddening of foliage, and bleeding cankers at …

Riparian formations encompass a diverse suite of transitional zones between terrestrial and
aquatic ecosystems. During the last decades, these formations have been impacted by …

A number of Phytophthora species have been identified as destructive plant pathogens and
invasive species. They have the potential to affect a wide range of host plants and cause …

Phytophthora species are well-known destructive forest pathogens, especially in natural
ecosystems. The wild apple (Malus sieversii (Ledeb.) Roem.) is the primary ancestor of M …

For many years, a progressive process in the decline of black alder has been observed in
Poland. Symptoms of alder dieback include withering and death of branches, stunted …