Filamentous Fungi and Yeasts Associated with Mites Phoretic on Ips typographus in Eastern Finland

The European spruce bark beetle (Ips typographus) has become a major forest pest in Finland recent years. is well-known vector of mainly ophiostomatoid fungi causing blue-stain timber and pathogens that have the ability to amplify insect damage. It also vectors other associated organisms, such as phoretic mites. ecology these mites remains poorly understood, including their associations with fungi. In this study, we considered filamentous yeasts on I. typographus. Fungal identifications were based DNA sequences phylogenetic analyses ITS and/or partial β-tubulin gene regions. Fifteen fungal species detected, eight seven Eleven percent beetles carried 74% at least one species. An average two per mite. most commonly found Grosmannia penicillata (25%), Ophiostoma bicolor (19%), O. ainoae (12%) brunneolum (12%). Of yeast species, was Wickerhamomyces bisporus (47%). This study first report typographus its Finland. Majority are those previously reported association results confirmed many However, nature symbiosis between mites, associates be understood.