@article {13950,
	title = {Bark beetle calamity remained topical also in 2007},
	journal = {Forstschutz Aktuell},
	volume = {42},
	year = {2008},
	month = {Mai},
	pages = {8-10},
	type = {Article},
	abstract = {In 2007, 2.14 million m3 of wood were infested by bark beetle. This means a slight decrease of bark beetle damage compared to the year before. However, the record level of 2 million m3 has been exceeded the fifth consecutive year. Due to the massive wind throw from gales early in 2008, bark beetle gradation will remain a topical issue. Seven federal provinces joined the Austrian bark beetle monitoring system consisting of approximately 170 pheromone traps. The flight activity and especially the flight maxi-mum differed considerably. However, the flight showed a very consistent pattern starting early again, as expected.},
	keywords = {Ips typographus, Pityogenes chalcographus},
	isbn = {1815-5111},
	author = {Krehan, Hannes and Steyrer, Gottfried}
}
@article {13072,
	title = {Associations between Pityogenes bidentatus and fungi in young managed Scots pine stands in Poland},
	journal = {Forest Pathology},
	volume = {38},
	number = {3},
	year = {2008},
	month = {June},
	pages = {169-177},
	type = {Article},
	abstract = {The association between Pityogenes bidentatus and fungi was studied in young, managed Pinus sylvestris stands in Poland. Fungi were isolated from emerged adults and their galleries collected from four populations. In total, 2089 fungal isolates including 42 species, were obtained. Penicillium sp. 1 and Geosmithia sp. 1 were the most commonly isolated fungi from beetles (49\% and 41\% of beetles respectively). Geosmithia sp. 1 species was the dominant species in P. bidentatus galleries with a frequency of occurrence of 57.9\%. Hormonema dematioides was the second most abundant fungus in gallery systems (17.1\% of wood samples). Two of the isolated Geosmithia species were previously undescribed. Pityogenes bidentatus also vectored three ophiostomatoid species: Ophiostoma minus, O. piceae and Graphium sp. {\textquoteright}W{\textquoteright}. These species were occasionally isolated from beetles and their galleries, suggesting a non-specific relationship.},
	keywords = {Pityogenes bidentatus},
	isbn = {1437-4781},
	author = {Jankowiak, R. and Rossa, R.}
}
@article {11487,
	title = {Stored spruce timber as the breeding material for Pityogenes chalcographus (L.) (Col., Curculionidae, Scolytinae)},
	journal = {Lesne Prace Badawcze},
	volume = {69},
	number = {3},
	year = {2008},
	month = {2008},
	pages = {197-201},
	type = {Article},
	abstract = {The field analyses of unbarked spruce logs stored within the forest, done in 2005 and 2007, revealed its heavy infestation by Pityogenes chalcographus (frequency 36 and 73\%, respectively). The logs stored in sunny place were less infested, and the infestation density was not related to the section diameter. The frequency and infestation density was lower by 13 and 6.5 times, respectively, on the logs sprayed with lime. In 2006, high (88\%) P. chalcographus frequency was found on standing, infested trees next to the place of experiment from 2005. Stored spruce timber can serve as additional breeding material for the pest, but can also be used as trap logs. The consequences of such untypical occurrence for the threat to the surrounding spruce stands are discussed and possible forest protection practices are proposed.},
	keywords = {Pityogenes chalcographus},
	isbn = {1732-9442},
	author = {Grodzki, Wojciech and Plata, Jaroslaw}
}
@article {11419,
	title = {Natural regeneration of mixed spruce and fir stand (Abieti-Piceetum) damaged by spruce bark beetles in the area of Knezevo},
	journal = {Sumarstvo},
	volume = {2008},
	number = {3},
	year = {2008},
	month = {2008},
	pages = {53-64},
	type = {Article},
	abstract = {Natural regeneration in a mixed fir and spruce stand (Abieti [long dash] Piceetum) was resea- rched on the areas damaged by spruce bark beetles and reclaimed by clear cutting. The damage occurred in 2003 due to poorly applied forest order. All the infested and dead, mainly spruce trees, damaged by spruce bark beetles (Pityogenes chalcographus and Ips typographus) were removed by clear cutting in the form of irregular circular areas. The degree of regeneration, abundance and the characteristics of fir and spruce young growth were studieddepending on the aspect of the regeneration areas and their sizes. Natural regeneration of firand spruce stands after the reclamation of the damage caused by bark beetles should be adapted to a specific management system, because the differences in fir and spruce bioecological characters require different silvicultural procedures depending on the actual state. By the application of clear cutting in the form of circular areas with eccentric extensions, the conditions of spruce natural regeneration can be improved in the aim of achieving the technical goals of management of mixed fir and spruce forests.},
	keywords = {Ips typographus, Pityogenes chalcographus},
	isbn = {0350-1752},
	author = {Govedar, Zoran and Stanivukovic, Zoran and Zlokapa, Brane}
}
@article {10591,
	title = {Research on the proper usage of the pheromone trap method monitoring and mass trapping of Ips typographus L. and Pityogenes chalcographus L. in the federation of Bosnia and Herzegovina},
	journal = {Forstschutz Aktuell},
	volume = {44},
	year = {2008},
	month = {November},
	pages = {10-11},
	type = {Article; Meeting paper},
	abstract = {The purpose of this paper is to determine the number of installed synthetic pheromone baited traps for monitoring and mass trapping of 1ps typographus and Pityogenes chalcographus. the types of traps and pheromone dispensers and the propriety of used method on the site (trap position, trap distance of the nearest healthy spruce tree, trap height, etc.) are examined. The number of controlled traps was 1116; the number of those completely correctly placed traps was 223, that is 20 percent.},
	keywords = {Ips typographus, Pityogenes chalcographus},
	isbn = {1815-5111},
	author = {Dautbasic, Mirza and Trestic, Tarik and Mujezinovic, Osman and Bajric, Muhamed}
}
@article {9128,
	title = {Sympatric occurrence of diverged mtDNA lineages of Pityogenes chalcographus (Coleoptera, Scolytinae) in Europe},
	journal = {Biological Journal of the Linnean Society},
	volume = {94},
	number = {2},
	year = {2008},
	month = {June},
	pages = {331-340},
	type = {Article},
	abstract = {Differentiation among the European populations of the six-toothed spruce bark beetle Pityogenes chalcographus was observed for the first time in the 1970s as mating males from Northern Europe with females from Central Europe led to a significant decline in fecundity. Morphological examination revealed that P. chalcographus can be separated into two European races. Here, we investigated the genetic background of this separation by analysing 39 populations (n = 695), sequencing almost the complete cytochrome oxidase I gene (1543 bp) and applying single-strand conformation polymorphism. Phylogenetic analysis of 58 haplotypes yielded three major clades with a maximum sequence divergence of 2.33\%, indicating that the demographic events took place in the late Pleistocene. These results support the hypothesis of allopatric divergence of the mtDNA lineages, which postglacially came into sympatric existence in Europe. However, as a result of partial crossing incompatibility the diverged lineages retained their genetic identity during postglacial times.},
	keywords = {Pityogenes chalcographus},
	isbn = {0024-4066},
	author = {Avtzis, Dimitrios N. and Arthofer, Wolfgang and Stauffer, Christian}
}
