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Fungal associates of the spruce bark beetle Ips typographus L. (Col. Scolytidae) in relation to different trapping methods
Author(s) -
Viiri H.
Publication year - 1997
Publication title -
journal of applied entomology
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.795
H-Index - 60
eISSN - 1439-0418
pISSN - 0931-2048
DOI - 10.1111/j.1439-0418.1997.tb01444.x
Subject(s) - biology , bark beetle , pheromone trap , botany , bark (sound) , spore , pest analysis , trapping , curculionidae , pheromone , horticulture , ecology
Ips typographus transports spores of various sapwood‐staining fungi, mainly in the pits of the pronota and elytra. When pheromone trapping is used to collect beetles, the spores of fungi from different beetles may mix. Therefore, the species composition of fungi associated with J. typographus was investigated in eastern Finland using beetles caught by different trapping methods. The beetles were collected individually by hand or in pheromone traps with or without vermiculite used as insulating material in trap containers to prevent surface contamination between beetles. The beetles were inoculated into Norway spruce logs with a cork borer and the frequencies of fungi were determined by isolation of fungi from bark and sapwood. The most frequent ophiostomatoid species were O. penicillatum and O. europhioides. Other common fungi were Graphium and Leptographium species. The species that were isolated occasionally were O. ainoae, O. bicolor, O. piceae, O. tetropii and C. polonica. Relationships between fungal observations were analysed one by one. In pairwise comparison of pheromone trapping and individually collected beetles, the frequencies of fungi isolated from beetles differed significantly. However, when all trapping methods were compared simultaneously, the differences were not significant.