Full text of this article is only available in PDF format.

Kari Heliövaara

Occurrence of Petrova resinella (Lepidoptera, Tortricidae) in a gradient of industrial air pollutants.

Heliövaara K. (1986). Occurrence of Petrova resinella (Lepidoptera, Tortricidae) in a gradient of industrial air pollutants. Silva Fennica vol. 20 no. 2 article id 5264. https://doi.org/10.14214/sf.a15443

Abstract

The relationship between industrial air pollutants and the occurrence of galls of Petrova resinella (Lepidoptera, Torticiadae) was studied around the industrialized town of Harjavalta in Western Finland. There were 44 sampling sites set out at logarithmic distances along five transects (NW, W, SW, SE) froma a distive source of emissions. Each site consisted of three circular sample plots (30 m2) in young Scots pine (Pinus sylvestris L.) stands. The number of galls, including cankers from several years earlier, was highest in the vicinity of the factory complex on each transect. The highest number of two-year-old galls containing living larvae was usually recorded at the ends of the transects several kilometres from the factories. However, the significance of the differences both between zones and transects was rather low. Correlations between the deposition of heavy metals (Cd, Cu, Ni, Pb, Zn), used as an indication of the general level of air pollution, and the total number of galls, were positive and generally highly significant. It is concluded that P. resinella has benefitted from air pollution although perhaps to less extent than some sap-sucking species.

The PDF includes an abstract in Finnish.

Keywords
air pollution; Pinus sylvestris; Petrova resinella; Harjavalta; insect damages; galls

Published in 1986

Available at https://doi.org/10.14214/sf.a15443 | Download PDF

Creative Commons License

Register
Click this link to register for Silva Fennica submission and tracking system.
Log in
If you are a registered user, log in to save your selected articles for later access.
Contents alert
Sign up to receive alerts of new content

Your selected articles
Your search results
Nikula A., Nivala V. et al. (2019) Modelling the effect of habitat composition and .. Silva Fennica vol. 53 no. 1 article id 9918
Joensuu J., Heliövaara K. et al. (2008) Risk of bark beetle (Coleoptera, Scolytidae) dam.. Silva Fennica vol. 42 no. 2 article id 254
Jääskelä M., Heliövaara K. et al. (1997) Comparison of protection methods of pine stacks .. Silva Fennica vol. 31 no. 2 article id 5614
Peltonen M., Heliövaara K. et al. (1997) Forest insects and environmental variation in st.. Silva Fennica vol. 31 no. 2 article id 5613
Annila E., Heliövaara K. (1991) Chemical control of cone pests in a Norway spruc.. Silva Fennica vol. 25 no. 2 article id 5442
Heliövaara K., Löyttyniemi K. (1989) Effect of forest fertilization on pine needle-fe.. Silva Fennica vol. 23 no. 4 article id 5390
Heliövaara K., Väisänen R. (1989) Invertebrates of young Scots pine stands near th.. Silva Fennica vol. 23 no. 1 article id 5368
Heliövaara K., Väisänen R. (1989) Quantitative variation in the elemental composit.. Silva Fennica vol. 23 no. 1 article id 5367
Heliövaara K., Väisänen R. (1988) Interactions among herbivores in three polluted .. Silva Fennica vol. 22 no. 4 article id 5361
Heliövaara K., Väisänen R. (1986) Parasitization in Petrova resinella (Lepidoptera.. Silva Fennica vol. 20 no. 3 article id 5276
Heliövaara K. (1986) Occurrence of Petrova resinella (Lepidoptera, To.. Silva Fennica vol. 20 no. 2 article id 5264
Heliövaara K., Annila E. et al. (1983) Effect of nitrogen fertilization and insecticide.. Silva Fennica vol. 17 no. 4 article id 5197
Heliövaara K. (1982) The pine bark bug, Aradus cinnamomeus (Heteropte.. Silva Fennica vol. 16 no. 4 article id 5168
Väisänen R., Heliövaara K. (1994) Assessment of insect occurrence in boreal forest.. Silva Fennica vol. 0 no. 243 article id 7505
Heliövaara K., Väisänen R. et al. (1991) Quantitative biogeography of the bark beetles (C.. Silva Fennica vol. 0 no. 219 article id 7606
Heliövaara K., Väisänen R. (1984) Effects of modern forestry on Northwestern Europ.. Silva Fennica vol. 0 no. 189 article id 7636