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Articles by Anne Nerg

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article id 5585, category Article
Päivi Lyytikäinen, Jarmo K. Holopainen, Pirjo Kainulainen, Anne Nerg, Seppo Neuvonen, Tarmo Virtanen. (1996). Performance of pine sawflies under elevated tropospheric ozone. Silva Fennica vol. 30 no. 2–3 article id 5585. https://doi.org/10.14214/sf.a9230
Keywords: Pinus sylvestris; Neodiprion sertifer; air pollution; ozone; Gilpinia pallida; resin acids
Abstract | View details | Full text in PDF | Author Info

Concentration of the phytotoxic air pollutant, ozone (O3) is continually increasing in the lower layer of the troposphere. The purpose of this study was to compare performance of pine sawflies on Scots pine (Pinus sylvestris L.) seedlings in ambient and future levels of ozone. Scots pine seedlings were grown in field fumigation system where the ozone doses in fumigated plots were 1.5–1.6 times the ambient level. Larvae of the European pine sawfly (Neodiprion sertifer Geoffroy and Gilpinia pallida Klug) were reared on the foliage of Scots pine. The levels of resin acids and monoterpenes in foliage were analysed. There were no significant effects of ozone fumigation on sawfly performance or levels of defence compounds in pine foliage. The results suggest that the elevated ozone concentrations do not strongly affect the needle quality of young Scots pine and the importance of these two diprionid sawfly species forest pests.

  • Lyytikäinen, E-mail: pl@mm.unknown (email)
  • Holopainen, E-mail: jh@mm.unknown
  • Kainulainen, E-mail: pk@mm.unknown
  • Nerg, E-mail: an@mm.unknown
  • Neuvonen, E-mail: sn@mm.unknown
  • Virtanen, E-mail: tv@mm.unknown

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