Non-target Bark Beetles in <i>Ips duplicatus</i> (Sahlberg) Pheromone Traps Baited with Host Volatiles

  • Mihai-Leonard DUDUMAN “Ștefan cel Mare” University of Suceava, Forestry Faculty, Applied Ecology Laboratory, Universității Street 13, Suceava
  • Nicolai OLENICI National Institute of Research and Development in Silviculture “Marin Dracea”, Calea Bucovinei 73 bis, Câmpulung Moldovenesc

Abstract

Response of several non-target bark beetles (Coleoptera: Curculionidae, Scolytinae) to different combinations of the northern spruce bark beetle’s synthetic pheromone with the monoterpenes (-)-alpha-pinene and (+)-limonene has been studied in choice experiments in the field with flight barrier traps. The experiments were organized in four Norway spruce stands (40-50 years old) outside its natural area, in the north-east of Romania, where Ips duplicatus (Sahlberg) populations had reached an epidemical level. Each experiment had five treatments randomly replicated in six blocks within each experimental plot. Four non-target bark beetle species were captured together with Ips duplicatus: I. typographus (L.) (2611 beetles), Pityogenes chalcographus (L.) (184 beetles), Hylastes cunicularius Erichson (107 beetles) and Dryocoetes autographus (Ratzeburg) (24 beetles), representing 1.77%, 0.13%, 0.07% and 0.02% respectively of total captures. Beetles of I. typographus were attracted by synthetic pheromone blend of I. duplicatus and have intensified their response in the presence of (-)-alpha-pinene or a combination between (-)-alpha-pinene and (+)-limonene, but the other species have been captured in the traps accidentally. The positive response of I. typographus to the present formulation of I. duplicatus pheromone suggests the possibility to use the pheromone dispensers for both species in the same traps when mass-trapping is the main goal, but new studies should clarify the real effects of putting together pheromone dispensers of I. typographus or P. chalcographus with those of I. duplicatus.

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Author Biography

Nicolai OLENICI, National Institute of Research and Development in Silviculture “Marin Dracea”, Calea Bucovinei 73 bis, Câmpulung Moldovenesc
Senior Researcher, Forest Protection Laboratory
Published
2015-12-02
How to Cite
DUDUMAN, M.-L., & OLENICI, N. (2015). Non-target Bark Beetles in <i>Ips duplicatus</i&gt; (Sahlberg) Pheromone Traps Baited with Host Volatiles. Notulae Botanicae Horti Agrobotanici Cluj-Napoca, 43(2), 576-581. https://doi.org/10.15835/nbha4329856
Section
Research Articles