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Articles containing the keyword 'parasites'

Category : Article

article id 5276, category Article

Kari Heliövaara, Rauno Väisänen. (1986). Parasitization in Petrova resinella (Lepidoptera, Tortricidae) galls in relation to industrial air pollutants. Silva Fennica vol. 20 no. 3 article id 5276. https://doi.org/10.14214/sf.a15455

Keywords: Pinus sylvestris; Scots pine; insect damages; air pollution; Petrova resinella; gall stage; parasites

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

Paratization of Petrova resinella 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 empty or contained a dead larva. The proportion of paratisized galls did not depend on the distance from emission sources of industrial air pollutants.

The PDF includes an abstract in Finnish.

Heliövaara, E-mail: kh@mm.unknown
Väisänen, E-mail: rv@mm.unknown

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DeLong S. C., (2002) Using nature’s template to best advantage in the.. Silva Fennica vol. 36 no. 1 article id 571 (remove) | Edit comment

Jänterä A., (1954) “Metsälehti” as a means of forest information in.. Acta Forestalia Fennica vol. 61 no. 35 article id 7447 (remove) | Edit comment

Grøn A. H., (1954) Progressive forestry Acta Forestalia Fennica vol. 61 no. 10 article id 7422 (remove) | Edit comment

MacGregor J. J., (1954) The British forest economy and policy Acta Forestalia Fennica vol. 61 no. 16 article id 7428 (remove) | Edit comment

Ripatti P., (1992) Forest area changes of non-industrial private fo.. Silva Fennica vol. 26 no. 3 article id 5485 (remove) | Edit comment

Forsström M., (1960) Influence of the Settlement Act and the related .. Silva Fennica vol. 0 no. 104 article id 4692 (remove) | Edit comment

Niskanen A., Luukkanen O. et al. (1993) Evaluation of the profitability of fast-growing .. Acta Forestalia Fennica vol. 0 no. 241 article id 7503 (remove) | Edit comment

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