Results 61 to 70 of about 2,680 (218)

Natura 2000 Cusma Site Scolytidae

open access: yesBulletin of University of Agricultural Sciences and Veterinary Medicine Cluj-Napoca. Agriculture, 2010
SUMMARY The emergence and development of pest outbreaks over thresholds, hazardous or critical, can lead to serious disturbances of the forest ecosyste ms, thus making human intervention indispensable. The main pest of windfall and snow affected pine fo rests are the Scolytidae family strain beetles (Simionescu et. all. 2000).
Paul BELDEAN   +2 more
openaire   +2 more sources

Ergebnisse der Albanien-Expedition 1961 des 'Deutschen Entomologischen Institutes'. 86. Beitrag. Coleoptera: Scolytidae.

open access: yes, 1971
Bearbeitet wurden die Scolytidae der Ausbeute der Albanien-Expedition des Deutschen Entomologischen Institutes, die 21 Exemplare in sechs Arten umfasst; alle sechs sind Erstmeldungen für die Fauna Albaniens.
Schedl, Karl Eduard
core   +1 more source

Pine Sawflies, Neodiprion spp. (Insecta: Hymenoptera: Diprionidae)

open access: yesEDIS, 2005
Pine sawfly larvae, Neodiprion spp., are the most common defoliating insects of pine trees, Pinus spp., in Florida. Sawfly infestations can cause growth loss and mortality, especially when followed by secondary attack by bark and wood-boring beetles ...
Wayne N. Dixon
doaj   +1 more source

Population dynamics of tree-killing bark beetles [PDF]

open access: yes, 2010
During outbreak periods, the European spruce bark beetle and the North American mountain pine beetle are able to kill millions of coniferous trees. Throughout the 20th century, six outbreaks have occurred in Sweden and four in British Columbia, with ...
Kärvemo, Simon
core  

The genus Prorops Waterson, 1923 (Hymenoptera, Bethylidae) from Madagascar

open access: yes, 2012
Three species of the genus Prorops Waterson, 1923 occur in Madagascar. Prorops nasuta Waterson, 1923 is recorded for the first time from Madagascar and two new species are described and illustrated: P. sparsa sp. nov. and P. impotens sp. nov., both based
Celso O. Azevedo   +3 more
core   +1 more source

Adult Diapause in Coleoptera

open access: yesPsyche: A Journal of Entomology, 2012
Recent studies dealing with adult (reproductive) diapause in the Coleoptera are reviewed, as a kind of supplement to the classic compendia. In the first two sections, the general characteristics of adult diapause are described and principal terms ...
Ivo Hodek
doaj   +1 more source

Scolytidae und Platypodidae

open access: yes, 1938
(Uploaded by Plazi from the Biodiversity Heritage Library) No abstract provided.
openaire   +1 more source

Identifizierung von Haplotypen bei Pityogenes chalcographus (Col., Scolytidae) durch SSCP

open access: yes, 2008
Pityogenes chalcographus is a widely distributed spruce pest in Eurasia (KNIZEK et al. 2005). In 70ies, E. Führer studied the intraspecific variation of this spruce bark beetle and detected race differentiation among European populations based on ...
Stauffer, Christian   +2 more
core  

Zur Synonymie der Borkenkäfer, XIII (Coleoptera: Scolytidae). 222. Beitrag zur Morphologie und Systematik der Scolytoidea).

open access: yes, 1963
Die vorliegende Arbeit enthält Ergänzungen und Berichtigungen zu drei neueren Veröffentlichungen von F. G. Browne über Scolytiden im Zusammenhang mit den Vorarbeiten des Verfassers zur Herausgabe einer Neuauflage des entsprechenden Bandes der "Genera ...
Schedl, Karl Eduard
core   +1 more source

Pine Shoot Beetle, Tomicus piniperda (Linnaeus) (Insecta: Coleoptera: Scolytidae)

open access: yesEDIS, 2005
Tomicus piniperda (Linnaeus), a pine shoot beetle native to Europe, was first discovered in the United States in July 1992, in a Christmas tree plantation in Ohio. Since then, intensive surveying by the U.S.
Michael Thomas   +2 more
doaj   +5 more sources

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