Publications
NIBIOs employees contribute to several hundred scientific articles and research reports every year. You can browse or search in our collection which contains references and links to these publications as well as other research and dissemination activities. The collection is continously updated with new and historical material.
1982
Authors
Peder BraatheAbstract
No abstract has been registered
Abstract
No abstract has been registered
Authors
Øystein AustaråAbstract
Because Panolis flammea (Denis & Schiff.) has become an important pest of Pinus contorta in Scotland in recent years but has not as yet been recorded as a pest of this tree in the nordic countries, its distribution in Norway was investigated with pheromone traps in 1980 and 1981. The noctuid was found in 25 of 36 localities surveyed. The northern distribution was extended from Kvamme in More to Namsos in Sor-Trondelag. In southern Norway, the moth was recorded from several localities further inland than was previously known, and from several new localities along the west coast. Four other noctuids attracted by the synthetic pheromone analogue used are listed.
1981
Authors
Finn Roll-Hansen Helga Roll-HansenAbstract
No abstract has been registered
Authors
Finn H. BrækkeAbstract
No abstract has been registered
Authors
Finn H. BrækkeAbstract
No abstract has been registered
Authors
Finn H. BrækkeAbstract
No abstract has been registered
Authors
Finn H. BrækkeAbstract
No abstract has been registered
Authors
Finn H. BrækkeAbstract
No abstract has been registered
Abstract
Thanasimus formicarius (L.) responds to racemic ipsdienol and ipsenol and less to (S)-cis-verbenol. All three are pheromone components in several bark beetles of the genus Ips. Synergistic effects appeared when the components were combined. Methylbutenol alone, the specific pheromone component of Ips typographus, elicited no response, but synergestic effects appeared when methylbutenol was combined with cis-verbenol and ipsdienol. The sympatric species Thanasimus femoralis (Zett.) responds to (S)-cis-verbenol, while ipsdienol and ipsenol synergize the response.