<abstract xmlns="http://www.w3.org/1999/xhtml"><p> Ips duplicatus adults were sampled with pheromone-baited black window-slot traps (Theysohn) in 70- to 100-yearold Norway spruce (Picea abies) stands between 280 and 650 m a.s.l. in the eastern Czech Republic and southern Poland during 2000- 2010. Sets of 5-12 traps were placed about 20 m from the edge of the infested forest. Each trap was baited with a standard synthetic pheromone lure (ID Ecolure), and was setup 1.5-2.0 m above the ground. The objectives were to determine the relationship between the numbers of adults trapped in the overwintered generation and those in the offspring generation. According to data from 135 traps, the numbers of overwintered beetles captured in spring (April-June) were significantly higher than the numbers captured in summer (July-August), but the numbers of offspring beetles captured in summer were significantly correlated with the numbers overwintered beetles captured in spring. The spring captures can be used to estimate the threat caused by I. duplicatus during the whole vegetation season. The traps installed in summer should be used to determine the peaks in the bark beetle flight activity, thus enabling early identification of trees infested by I. duplicatus, especially inside stands.</p></abstract>

Ips duplicatus adults were sampled with pheromone-baited black window-slot traps (Theysohn) in 70- to 100-yearold Norway spruce (Picea abies) stands between 280 and 650 m a.s.l. in the eastern Czech Republic and southern Poland during 2000- 2010. Sets of 5-12 traps were placed about 20 m from the edge of the infested forest. Each trap was baited with a standard synthetic pheromone lure (ID Ecolure), and was setup 1.5-2.0 m above the ground. The objectives were to determine the relationship between the numbers of adults trapped in the overwintered generation and those in the offspring generation. According to data from 135 traps, the numbers of overwintered beetles captured in spring (April-June) were significantly higher than the numbers captured in summer (July-August), but the numbers of offspring beetles captured in summer were significantly correlated with the numbers overwintered beetles captured in spring. The spring captures can be used to estimate the threat caused by I. duplicatus during the whole vegetation season. The traps installed in summer should be used to determine the peaks in the bark beetle flight activity, thus enabling early identification of trees infested by I. duplicatus, especially inside stands.

Pheromone trapping of the double-spined bark beetle Ips duplicatus (Coleoptera: Curculionidae, Scolytinae): seasonal variation in abundance

Czech University of Life Sciences, Faculty of Forestry and Wood Sciences, Kamýcká 129, 165 21 Prague, Czech Republic, phone: +420737322550

Forest Research Institute, Department of Mountain Forestry, Fredry 39, 30-605 Kraków, Poland

Forestry and Game Management Research Institute, Prague, Office Frýdek-Místek, Na Půstkách 39, 738 01 Frýdek-Místek, Czech Republic

Folia Forestalia Polonica

Ips duplicatus adults were sampled with pheromone-baited black window-slot traps (Theysohn) in 70- to 100-yearold Norway spruce (Picea abies) stands between...

Pheromone trapping of the double-spined bark beetle Ips duplicatus (Coleoptera: Curculionidae, Scolytinae): seasonal variation in abundance

Pubblicato online: 08 giu 2013

Pagine: 3 - 9

DOI: https://doi.org/10.2478/ffp-2013-0001

Parole chiave
central Europe, flight activity, generation, Ips duplicatus, pheromone lure

This content is open access.

Pheromone trapping of the double-spined bark beetle Ips duplicatus (Coleoptera: Curculionidae, Scolytinae): seasonal variation in abundance

Pubblicato online: 08 giu 2013

Pagine: 3 - 9

DOI: https://doi.org/10.2478/ffp-2013-0001

Parole chiavecentral Europe, flight activity, generation, Ips duplicatus, pheromone lure

This content is open access.

Parole chiave
central Europe, flight activity, generation, Ips duplicatus, pheromone lure