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Infestation of Norway spruce seedlings by Cryphalus asperatus: New threat for planting of forests?

Author

Listed:
  • Tomáš Fiala
  • Jaroslav Holuša

    (Faculty of Forestry and Wood Sciences, Czech University of Life Sciences, Prague, Czech Republic)

Abstract

Cryphalus asperatus (Coleoptera: Curculionidae, Scolytinae) is described as an exceptional but important secondary pest of Norway spruce seedlings. Of the 10 000 seedlings transported to one location in the Ore Mountains, Central Europe in 2020, in total 1 500 seedlings were killed by C. asperatus. The infestation and death of seedlings probably resulted in part from the substantial local increase in the local abundance of C. asperatus after the sanitation felling of many Ips typographus-infested and otherwise damaged trees; the felled trees provided many branches suitable for C. asperatus feeding. In addition, the seedlings were probably stressed by the multi-hour transportation (probably drought) from the forest nursery.

Suggested Citation

  • Tomáš Fiala & Jaroslav Holuša, 2021. "Infestation of Norway spruce seedlings by Cryphalus asperatus: New threat for planting of forests?," Plant Protection Science, Czech Academy of Agricultural Sciences, vol. 57(2), pages 167-170.
    • Handle: RePEc:caa:jnlpps:v:57:y:2021:i:2:id:112-2020-pps
    DOI: 10.17221/112/2020-PPS
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    References listed on IDEAS

    as
    1. M. Pop & E. Kula & P. Maňas & R. Kajfosz, 2010. "Chemical thinning in blue spruce (Picea pungens Engelm.) stands and its effects on cambioxylophagous fauna," Journal of Forest Science, Czech Academy of Agricultural Sciences, vol. 56(5), pages 225-235.
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