Browsing NIBIO Brage by Author "Norli, Hans Ragnar"
Now showing items 1-7 of 7
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Attraction of Chrysotropia ciliata (Neuroptera, Chrysopidae) Males to P-Anisaldehyde, a Compound with Presumed Pheromone Function
Thöming, Gunda; Koczor, Sándor; Szentkirályi, Ferenc; Norli, Hans Ragnar; Tasin, Marco; Knudsen, Geir (Peer reviewed; Journal article, 2020-06-26)In a field-trapping experiment with plant volatiles, we observed notably high attraction of green lacewing (Chrysotropia ciliata) males to the compound p-anisaldehyde. Based on this finding, we initiated the present study ... -
Kairomone-assisted trap cropping for protecting spring oilseed rape (Brassica napus) from pollen beetles (Coleoptera: Nitidulidae)
Thöming, Gunda; Solhaug, Knut Asbjørn; Norli, Hans Ragnar (Peer reviewed; Journal article, 2020-04-30)BACKGROUND Pollen beetles are key pests in oilseed rape (OSR) production. These beetles use visual and olfactory cues to locate their host plants at specific phenological stages, hence trap cropping may represent an ... -
Patterns and roles of lignan and terpenoid accumulation in the reaction zone compartmentalizing pathogen-infected heartwood of Norway spruce
Nagy, Nina Elisabeth; Norli, Hans Ragnar; Fongen, Monica; Østby, Runa Berg; Heldal, Inger; Davik, Jahn; Hietala, Ari Mikko (Peer reviewed; Journal article, 2022-02-10)Tree defense against xylem pathogens involves both constitutive and induced phenylpropanoids and terpenoids. The induced defenses include compartmentalization of compromised wood with a reaction zone (RZ) characterized by ... -
Retention and distribution of pesticides in planted filter microcosms designed for treatment of agricultural surface runoff
Butkovskyi, Andrii; Jing, Yuying; Bergheim, Hege; Lazar, Diana; Gulyaeva, Ksenia; Odenmarck, Sven R.; Norli, Hans Ragnar; Nowak, Karolina M.; Miltner, Anja; Kästner, Matthias; Eggen, Trine (Peer reviewed; Journal article, 2021-03-15)Pesticides in agricultural surface water runoff cause a major threat to freshwater systems. Installation of filter systems or constructed wetlands in areas of preferential run-off is a possible measure for pesticides ... -
Starch-Rich Microalgae as an Active Ingredient in Beer Brewing
Carnovale, Giorgia; Leivers, Shaun Allan; Rosa, Filipa; Norli, Hans Ragnar; Hortemo, Edvard; Wicklund, Trude; Horn, Svein Jarle; Skjånes, Kari (Peer reviewed; Journal article, 2022-05-17)Microalgal biomass is widely studied for its possible application in food and human nutrition due to its multiple potential health benefits, and to address raising sustainability concerns. An interesting field whereby to ... -
Successful reproduction and pheromone production by the spruce bark beetle in evolutionary naïve spruce hosts with familiar terpenoid defences
Flø, Daniel; Norli, Hans Ragnar; Økland, Bjørn; Krokene, Paal (Journal article; Peer reviewed, 2018-02)1. The European spruce bark beetle Ips typographus is a damaging pest on spruce in Europe. Beetle interactions with tree species originating outside the natural range of the beetle are largely unknown and may be unpredictable ... -
Volatile Organic Compound Profiles From Wheat Diseases Are Pathogen-Specific and Can Be Exploited for Disease Classification
Ficke, Andrea; Asalf, Belachew; Norli, Hans Ragnar (Peer reviewed; Journal article, 2022-01-07)Plants and fungi emit volatile organic compounds (VOCs) that are either constitutively produced or are produced in response to changes in their physico-chemical status. We hypothesized that these chemical signals could be ...