Results 51 to 60 of about 801 (188)
Spatial distribution of four spruce bark beetles in north-western Slovakia
Infestation density of four the most common spruce bark beetle species was estimated on 15 study sites (10 trees per site) in the Kysuce model region in 2006.
M. Turčáni, T. Hlásny
doaj +1 more source
Abstract The invasive sawfly Aproceros leucopoda causes severe defoliation of various elm species and thus can be a major pest in forest stands and urban environments. The overwintering biology of A. leucopoda has not been investigated so far; therefore, the aim of this study was to determine the cold tolerance strategy and cold hardiness of ...
Gábor Vétek +7 more
wiley +1 more source
Automated Optimal Motion Sequence of a 9-Bar Linkage
Automated optimization-driven analyses may lead to an emersion of innovative design approaches, while investigating the potentials in design, analysis and control of high-performance engineering structures, and adaptive architecture. In the present study,
Maria Matheou +3 more
doaj +1 more source
A beetle inventory using window traps was performed to examine the effect of forest restoration by artificial addition of dead wood on the abundance of beetles and to evaluate the risk of bark beetle damage in a forest restoration area.
Joensuu, Johanna +2 more
doaj +1 more source
Chemical thinning was applied in blue spruce (Picea pungens Engelm.) stands by the application of Roundup Klasik and Garlon 4 EC. The thinning efficacy of Garlon 4 EC was negligible, while that of Roundup Klasik reached nearly 100% when the full strength
M. Pop, E. Kula, P. Maňas, R. Kajfosz
doaj +1 more source
Cambioxylophagous fauna of young spruce stands damaged by snow in the Beskids
In 25 to 40-years-old stands damaged by snow in the Beskids, the fauna of cambioxylophages was analyzed both on standing breaks and lying break-off stems.
E. Kula, R. Kajfosz, W. Ząbecki
doaj +1 more source
Non-target Bark Beetles in Ips duplicatus (Sahlberg) Pheromone Traps Baited with Host Volatiles
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 ...
Mihai-Leonard DUDUMAN, Nicolai OLENICI
doaj +1 more source
The occurrences of early-arriving saproxylic beetles were examined on 1,200 fragments of Scots pine (Pinus sylvestris L.) logging residues generated by thinning in a single stand in the Drahanská Highlands in the Czech Republic.
J. Foit
doaj +1 more source
Automatic traps foster the monitoring and prediction of bark beetle swarming
Automated trap data help bark beetle management to act more timely and targeted, thereby facilitating an effective mitigation of outbreaks. Moreover, the immediate data transmission makes regular manual trap collections unnecessary. While swarming models cannot quantify absolute trap catches without site‐ and trap‐specific calibration, they provide ...
Sven Hofmann +3 more
wiley +1 more source
Dead wood retention and the risk of bark beetle attack [PDF]
Wind-felled Norway spruce trees left for conservation purposes and spruce stems stored as forest fuel may be colonised by the bark beetles Ips typographus and Pityogenes chalcographus (Coleoptera: Scolytidae).
Hedgren, Per Olof
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