Bionomics of european shot-hole borer (Xyleborus dispar [Fabricius], Coleoptera, Scolytidae) in apple orchards of southeastern Slovenia | Bionomija vrtnega zavrtaca (Xyleborus dispar [Fabricius], Coleoptera, Scolytidae) v jablanovih nasadih jugovzhodne Slovenije
2007
Pavlin, K., Smihelska c. 14, 8000 Novo mesto (Slovenia) | Trdan, S., Ljubljana Univ. (Slovenia). Biotechnical Fac., Agronomy Dept.
In 2006, we have studied the occurrence of European shot-hole borer (Xyleborus dispar [Fabricius]). In 2006, alcohol traps were placed in intensive orchards in four locations on Dolenjska and Posavje regions (Otocec near Novo mesto, Dvor near Zuzemberk, Gora near Krsko and Arnova sela). The flight dynamics was monitored with special alcohol traps (different types and different concentrations of ethanol) from the beginning of April to the end of August 2006. The aim of the research was to study the seasonal dynamics of the pest, its developmental cycle and potential hosts. The results of the monitoring confirmed our hypothesis that the beetle has only one generation per year and that higher attacks of this pest are usually in orchards, which are near to the forest. We established that the weather conditions have high influence on the flight dynamics of the European shot-hole borer. In the paper, the bionomics of the pest, with special emphasis on the influence of weather conditions on its development and the harmfulness of the pest are discussed.
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