Juha Siitonen. (1990). Potential forest pest beetles conveyed to Finland on timber imported from the Soviet Union. Silva Fennica vol. 24 no. 3 article id 5431. https://doi.org/10.14214/sf.a15585

Keywords: Finland; forest pests; timber trade; Scolytidae; Soviet Union; pest introduction; timber import

Abstract | View details | Full text in PDF | Author Info

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 European parts of the Soviet Union and seven from Siberia. 23 species of Scolytidae and about 18 other phloeophagous species were found including three species new for Finland: Phaenops guttulata (Buprestidae), Ips subelongatus and Orthotomicus erosus (Scolytidae).

The PDF includes an abstract in Finnish.

Siitonen, E-mail: js@mm.unknown

Category : Article

article id 7435, category Article

Esko Kangas. (1954). On the possibility of pests being conveyed in export timber : survey of biological requirements. Acta Forestalia Fennica vol. 61 no. 23 article id 7435. https://doi.org/10.14214/aff.7435

Keywords: insects; timber transport; timber import; timber export; pests; plant protection; conveying of pests; plant protection regulations

Abstract | View details | Full text in PDF | Author Info

Many countries have enacted plant protection laws or statutes that consist timber imported into a country, both raw wood and processed timber. This has caused some inconvenience to the international timber trade. Necessary protection against the spread of pests via export is fully acceptable, but the protection should be based on actual need.
When considering processed or barked raw timber, the problem concerns only species that pass their development in the wood. The four most important biological requirements affecting the risk are 1) the tree species of the importing country and affinity of the pest, 2) climatic conditions of the importing country and the pest’s range and adaptability to the climate, 3) biological factors regulating the population, and 4) suitability of the individual development of the pest for transmission. These risks are discussed in the article.

It is concluded that it is possible largely to eliminate the species that might be conveyed via export timber. It is often possible to decide in advance what danger threatens the importing country from species that might be conveyed via export timber. This would make it possible to adapt plant protection regulations to suit the relation between the exporting and importing countries.

The Acta Forestalia Fennica issue 61 was published in honour of professor Eino Saari’s 60th birthday.

Kangas, E-mail: ek@mm.unknown

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