Zobrazeno 1 - 4
of 4
pro vyhledávání: '"metsätuholaiset"'
Autor:
Juha Siitonen
Publikováno v:
Silva Fennica, Vol 24, Iss 3 (1990)
Coniferous timber imported by rail from the Soviet Union in Finland was studied for the presence of potential forest and timber pest beetles. Systematic samples of fourteen lots of pine pulpwood were examined. Seven of the lots originated from the Eu
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::dc81e172779b1720008cc4df9d597dfb
http://hdl.handle.net/10138/15585
http://hdl.handle.net/10138/15585
Autor:
Esko Kangas
Publikováno v:
Acta Forestalia Fennica. 52
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::22a2667a5abded3269cdf5127139e459
https://doi.org/10.14214/aff.7383
https://doi.org/10.14214/aff.7383
Autor:
Rauno Väisänen, Kari Heliövaara
Publikováno v:
University of Helsinki
Silva Fennica, Vol 20, Iss 3 (1986)
Silva Fennica, Vol 20, Iss 3 (1986)
Paratization of L. in the gall stage was studied in the surrounding of Harjavalta, south-western Finland, in relation to industrial air pollution. Of the studied 283 galls, 28% produced a moth, 52% of the larvae/pupae were paratisized, and 20% were e
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::ed348bc62ff269a8e95d8a851d8bd7c9
https://researchportal.helsinki.fi/en/publications/40940db4-343d-43d2-a5bd-f28c238c6c72
https://researchportal.helsinki.fi/en/publications/40940db4-343d-43d2-a5bd-f28c238c6c72