Title: Reproduction of a woodwasp, Urocerus japonicus (Hymenoptera: Siricidae) using no maternal symbiotic fungus
Author: Fukuda, Hideshi;
Source: In: McManus, Michael L.; Liebhold, Andrew M., eds. Proceedings: Ecology, Survey and Management of Forest Insects; 2002 September 1-5; Krakow, Poland. Gen. Tech. Rep. NE-311. Newtown Square, PA: U.S. Dept. of Agriculture, Forest Service, Northeastern Research Station. 130-131.
Publication Series: Other
Description: Most woodwasps (Siricidae) are symbiotically associated with the specific fungus, Amylostereum spp. Female adults inoculate the fungus during their oviposition in sapwood of the host trees (Morgan 1968). Woodwasp larvae can digest sapwood with low nutritional quality with the aid of symbiosis (Kukor and Martin 1983). In the earlier study, we clarified that a woodwasp with no fungal symbionts, Xeris spectrum can utilize the fungal symbionts of other woodwasp species without possessing any symbiotic fungi of its own (Fukuda and Hijii 1997). Moreover, the larvae of fungus-carrying woodwasp species cannot develop on living trees. The female adults oviposit selectively on fresh trees that are presumed to be suitable for fungus propagation, because the conditions of the wood at the time of oviposition affect propagation of the fungus (Fukuda 2002). Whether fungus-carrying woodwasps can develop using no maternal symbiotic fungus or not has never been studied. Thus, I conducted fungus-isolation and oviposition experiments to evaluate the preference and performance of U. japonicus on fungus-inoculated trees.
Keywords: Amylostereum fungus, fungus-isolation, oviposition preference, survival rate, Urocerus japonicus
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Fukuda, Hideshi 2003. Reproduction of a woodwasp, Urocerus japonicus (Hymenoptera: Siricidae) using no maternal symbiotic fungus. In: McManus, Michael L.; Liebhold, Andrew M., eds. Proceedings: Ecology, Survey and Management of Forest Insects; 2002 September 1-5; Krakow, Poland. Gen. Tech. Rep. NE-311. Newtown Square, PA: U.S. Dept. of Agriculture, Forest Service, Northeastern Research Station. 130-131.
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