Publikasjoner
NIBIOs ansatte publiserer flere hundre vitenskapelige artikler og forskningsrapporter hvert år. Her finner du referanser og lenker til publikasjoner og andre forsknings- og formidlingsaktiviteter. Samlingen oppdateres løpende med både nytt og historisk materiale. For mer informasjon om NIBIOs publikasjoner, besøk NIBIOs bibliotek.
2007
Sammendrag
Nytt skadeinsekt er funnet på nobeledelgran fra Sørlandet
Populærvitenskapelig – Nytt soppmiddel i bær: Amistar godkjent i jordbær og bringebær
Arne Stensvand
Forfattere
Arne StensvandSammendrag
Amistar (aktivt stoff: azoxystrobin) er godkjent i jordbær og bringebær. Artikkelen gir ein kort omtale av kva soppsjukdomar preparatet er aktivt mot og faren for utvikling av resistens.
Sammendrag
Det er ikke registrert sammendrag
Forfattere
Trygve S. Aamlid Nick JarvisSammendrag
Foredraget viser resulater fra grøntanleggsprosjektene "Benefits and Environmental Risks of Pesticide Application on Scandinavian Golf Greens" og "Effects of Organic Amendments and Wetting Agents on Fungicide Leaching from sand-based golf greens". Prosjektene har vist at risikoen for pesticidutlekking fra golfgreener kan reduseres kraftig ved tilsetning av 20 volumprosent torv eller kompost, og ved regelmessig bruk av vætemidler.
Forfattere
Odd FinnesSammendrag
Det er ikke registrert sammendrag
Forfattere
Kristin DaugstadSammendrag
Som ledd i eit større Bioforsk-prosjekt vart det våren 2007 tatt ut husdyrgjødselprøver frå gardsbruk med mjølkeku. Valdres forsøksring valte ut 10 bruk i Valdres utifrå tanken om å få med ulike driftsformer. Prøvene vart tatt ut under spreiinga om våren når gjødsla skulle vere godt omrørt. For å få med eventuelle horisontale skilnader i gjødsellageret vart prøva tatt med eit 3 m langt prøverør. Tidlegare er det tatt ut få prøver i Valdres, og i gjødselplanlegginga blir det derfor nytta normtal for å bestemme verdien av husdyrgjødsla. Analysene av dei 10 prøvene tyder på at innhaldet av nitrogen, fosfor og kalium er lågare enn normen.
Forfattere
Espen GovasmarkSammendrag
Omhandler essensielle næringsstoffer med spesiell fokus på essensielle mikromineraler til planter og husdyr (jern, sink, mangan, kopper, molybden, kobolt, selen). Temaer som ble omtalt var status i dag, mulige problemer pga mikromineralmangel og mulige løsninger på prblemene.
Forfattere
Stig UlvangSammendrag
Kort gjennomgang av næringsmuligheter basert på lokal mat/tradisjonsmat med utgangspunkt i visjoner og mål for Matprogrammet/VSP Mat
Sammendrag
Occurrence of entomopathogenic nematodes (EPNs) have been reported from all continents in the world except Antarctica. Africa is the continent with fewest reports so far. There have however been reports on EPNs occurrence in Egypt, Kenya and South Africa. EPNs are well known due to their potential as biological control agents of insect pests. Banana weevil (Cosmopolites sordidus) is as an important insect pest of banana. This pest causes reduced banana production in all countries of the East African Highlands in particular Tanzania and Uganda. Different strategies have been employed to control the insect. However the potential for using entomopathogenic nematodes as biological control agents of the weevil has not yet been considered in Tanzania. A preliminary study is ongoing to find out if entomopathogenic nematodes naturally exist in banana growing areas in Tanzania. Currently nine soil samples have been collected from three regions (Mbeya, Morogoro and Coast) with different agroecological conditions. The samples have been taken to Bioforsk in Norway, for extraction of EPNs. Analysis of the samples has been done using larvae of the Greater Wax moth (Galleria mellonella) as bait. After 7 and 14 days dead larvae were removed from the soil samples and placed on water agar. Some of the dead larvae were infected with entomopathogenic fungi and at least one sample had a dead larva with EPN infection. In this sample an adult nematode in the genus Steinernema was isolated. Many dead larvae also had what appeared to be secondary infections of saprophytic nematodes (Rhabditidae) and/or saprophytic fungi. Identification to species or genus level of the nematodes is ongoing. This study reports the find of EPNs for the first time in Tanzania. The isolation of indigenous EPNs are important for further studies on their suitability for control of local insect pests including banana weevils. Future work will include more soil samples for EPNs analysis and semi-field tests using EPNs against banana weevil.
Sammendrag
Occurrence of entomopathogenic nematodes (Epn) have been reported from all continents in the world except Antarctica. Africa is the continent with fewest reports so far. There have however been reports on Epn occurrence in Egypt, Kenya and South Africa. Epns are well known due to their potential as biological control agents of insect pests. Banana weevil (Cosmopolites sordidus) is considered as an important insect pest of banana. This pest causes reduced banana production in all countries of the East African Highlands in particular Tanzania and Uganda. Different strategies have been employed to control the insect. However the potential for using entomopathogenic nematodes as biological control agents of the weevil has not yet been considered in Tanzania. A preliminary study is ongoing to find out if entomopathogenic nematodes naturally exist in banana growing areas in Tanzania. Currently nine soil samples have been collected from three regions (Mbeya, Morogoro and Coast) with different ecological conditions. The samples have been taken to Bioforsk in Norway, for extraction of Epn. Analysis of the samples has been done using larvae of the Greater Wax moth (Galleria mellonella) as bait. After 7 and 14 days dead larvae were removed from the soil samples and placed on water agar. Some of the dead larvae were infected with entomopathogenic fungi and at least one sample had a dead larva with Epn infection. In this sample an adult nematode in the genus Steinernema was isolated. Many dead larvae also had what appeared to be secondary infections of saprophytic nematodes (Rhabditidae) and/or saprophytic fungi. Identification to species or genus level of the nematodes is ongoing. This study reports the find of Epn for the first time in Tanzania. The isolation of indigenous Epns are important for further studies on their suitability for control of local insect pests including banana weevils. Future work will include more soil samples for Epn analysis and semi-field tests using Epn against banana weevil.