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Abstract
It is widely known that xylophagous insects do not usually attack healthy, resistant trees. In order to overcome these defenses, inner-bark feeding insects have developed symbiotic interrelationships with various organisms, fungi in particular. In this paper, using our own data together with that available in the literature, we analyze the forms of relationships between insects and fungi and the role of these interactions at various stages of wood decomposition. In doing so, we distinguish between the following fungal-insect relationships: 1) ambrosia mycetophagous insects, symbiotically associated with primary ambrosia fungi, 2) ambrosia xylomycetophagous (phloeomycetophagous) insects, symbiotically associated with wood-coloring fungi (auxiliary ambrosia fungi according to Batra 1985), 3) xylophagous insects, symbiotically associated with fungi causing vascular mycoses, 4) destructive xylo-, mycetophagous insects, associated with wood-destroying fungi. The representatives of the first three groups develop in living wood or fresh timber. Representatives of the last group develop in dead wood, though in the earliest stages they can colonize living, but irreversibly weakened wood.
Parent Publication
Citation
Krivosheina, Nina P. 1991. Relations between wood-inhabiting insects and fungi. In: Baranchikov, Yuri N.; Mattson, William J.; Hain, Fred P.; Payne, Thomas L., eds. Forest Insect Guilds: Patterns of Interaction with Host Trees; 1989 August 13-17; Abakan, Siberia, U.S.S.R. Gen. Tech. Rep. NE-153. Radnor, PA: U.S. Department of Agriculture, Forest Service, Northeastern Forest Experiment Station: 335-346.
