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.
2006
Sammendrag
Artikkelen omhandlar arbeid som er gjort for å finna smitte av Colletotrichum i danske surkirsebærfelt og arbeid vidare framover om Colletotrichum i Norden.
Tidsskriftspublikasjon – Sprøyting mot bitterròte i søt- og surkirsebær
Jorunn Børve, Arne Stensvand
Sammendrag
Artikkelen rapporterar forsøk med sprøyting mot bitterrote i søt- og surkirsebær. I tillegg er det bilete av sjukdomane til ulike tider i sesongen.
Sammendrag
Artikkelen gjev eit kort oversyn over ulike soppar som er årsak til rote på lagra eple, i tillegg til gode råd for å unngå lagerrote og få epla til å halda seg lenge.
Sammendrag
I juni 2005 vart det funne rustsopp på rododendron i Hardanger. Soppen fører til skjemmande, brunraude flekkar på oversida av blada, og på undersida er flekkane fulle av guloransje sporar.
Sammendrag
Det er ikke registrert sammendrag
Sammendrag
Det er ikke registrert sammendrag
Sammendrag
Dette er fyrste artikkelen i ein serie på tre artiklar om soppsjukdomar på gran. Artikkelen tek for seg rotkjuke og honningsopp på gran og eggsporesoppen Phytophthora på edelgran.
Forfattere
Bernhard Speiser L Tamm T Amsler J Lambion C Bertrand Arne Hermansen Theo Ruissen Palle Haaland J Zarb J Santos P Shotton S Wilcockson P Juntharathep R Ghorbani C LeifertSammendrag
Late blight of potatoes, caused by Phytopthora infestans, is particularly difficult to prevent or control in organic agriculture. In this study, the host resistance of selected varieties to foliar and tuber blight and their yield under organic growing conditions were assessed in trials carried out in four countries (Switzerland, France, England and Norway) in 2001 and 2002. The objective was to identify new, more resistant varieties, which might replace some of the more susceptible varieties which are currently grown in organic agriculture. In each country, five test varieties were compared with two reference varieties, identical for all sites, and two local popular varieties. In addtion, the effect of copper fungicides was assessed for all varieties in England. Several new potato varieties (Appell, Derby, Innovator and Naturelle in Switzerland; Derby, Eden, Escort and Naturella in France; Sarpo Axona, Eve Balfour, Lady Balfour, Sarpo Mira and Sarpo Tomina in England; N89-1756 and N92-1538 in Norway) proved far less susceptible to foliar and tuber blight than most of the varieties currently grown. However, market requirements could restrict their introduction into practice. The copper fungicide treatment reduced foliar blight severity in all varieties tested in England and in both years, by 27 % on average, and increased yield by 20 % on average, but did not affect tuber blight. In organic farming, a shift towards the use of blight resistant varieties should be strongly encouraged, although this is unlikely to eliminate the need to use copper fungicides.
Sammendrag
Potetene vil også i 2006 krever riktig tørråtebekjempelse for å unngå redusert avling og kvalitet. I likhet med de siste årene kommer vi med en omtale av varsling og middelvalg i forbindelse med bekjempelsen av denne viktige skadegjøreren. Artikkelen er en oppdatering av tilsvarende artikkel fra i fjor.
Sammendrag
The aim of this three-year study (2001"2003) was to optimize fungicide application against anthracnose (Colletotrichum acutatum) in sweet and sour cherry orchards. The experimental sprays were applied to trees receiving normal fungicide programmes (grower schedule), although without the use of dithianon, except for the first year where only the experimental applications were applied to the sour cherry trees. Fungicide treatments were applied with either dithianon or copperoxychloride added prior to flowering or with dithianon added after flowering. Spraying with dithianon or copperoxychloride prior to flowering did not significantly reduce anthracnose compared to untreated. Two applications with dithianon during the green fruit stage (from petal fall and during the following 3"4 weeks) greatly reduced anthracnose at harvest. Three applications on green fruit did not reduce disease more than two applications. In sweet cherries, two sprays with dithianon at the green fruit stage in addition to the grower schedule reduced anthracnose at harvest from 14% to 3% in 2002 and from 15% to 1% the following year. In 2001, when very few fruit developed anthracnose, no treatment effects were evident. Treatments on green sour cherry fruit similar to those on sweet cherries reduced the attack of anthracnose from 85% to 42% in 2002 and from 51% to 12% the following year. In 2001, no treatment included only sprays on green fruit. However, one treatment, which included copperoxychloride at bud burst, one application of dithianon during flowering and two applications on green fruits, reduced anthracnose from 27% to 9%. Based on these results, cherry growers are recommended to spray twice with dithianon on green fruit if they have a history of anthracnose in their orchards.