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
Forfattere
Trond MæhlumSammendrag
Det er ikke registrert sammendrag
Forfattere
Trond MæhlumSammendrag
Det er ikke registrert sammendrag
Forfattere
Trond MæhlumSammendrag
Det er ikke registrert sammendrag
Forfattere
Trond MæhlumSammendrag
Det er ikke registrert sammendrag
Forfattere
Trond MæhlumSammendrag
Det er ikke registrert sammendrag
Forfattere
Trond MæhlumSammendrag
Det er ikke registrert sammendrag
Forfattere
R. Lahmar S. de Tourdonner P. Barz R-A Düring M. Frielinghaus R. Kolli J. Kubat Jan Netland V. Medvedev D. PicardSammendrag
In Europe, Conservation agriculture (CA) is less adopted than in the other world adopting regions and, reduced tillage is more used than no-tillage. Use of cover crop is not common. It is currently less researched than it was before the 1990s. One of the main features of CA is the reduction of the production costs which acts as a powerful driving force for the dissemination of CA technologies. In Europe, conversion from conventional agriculture to CA leads to a minor change in yields: ± 10% depending on the countries; and, this is not decisive for farmers as far as CA meets their main expectation: i.e. reduction in costs of fuel, machinery and labour saving. The adoption process responds to a step-by-step strategy and, large sized farms are the main adopters. The increase in competitiveness at the global and at European level; the general trend of the increase of CA coverage world-wide and the current level of fuel costs together with the trend of the enlargement of the farm size in Europe will probably contribute to the adoption of CA in Europe. The process is likely already ongoing in some European countries; it has to be sustained.
Forfattere
Mekjell MelandSammendrag
Rain covers protect sweet cherries against rain cracking and reduce disease pressure. It is important in order to achieve high quality sweet cherries in many cherry-producing regions worldwide. Many different designs to variable costs are available at the market. Tree covers that are wind stable and economically feasible are a demand for the fruit growers.
Sammendrag
The large arionid slug Arion lusitanicus is a serious pest in parts of northern Europe including many parts of Norway. In Norway it has mainly been a pest in home gardens but in recent years it has also spread to horticultural and vegetable crops such as strawberry and lettuce. This latter aspect is of great concern and a research project was initiated in 2005 to study the biology and control of this pest. The main aim of the project is to develop direct and preventive measures to reduce damage and further spread of the slug. To achieve this aim, the life-cycle, population dynamics and over-wintering strategies needs to be determined, as well as the distribution of the slug in the country. Direct and preventive measures are studied in gardens, in crops and in more controlled conditions. The studies include the use of biological agents such as the slug-parasitic nematode Phasmarhabditis hermaphrodita
Forfattere
Solveig HaukelandSammendrag
The black vine weevil (Otiorhynchus sulcatus) is an important pest in many crops in several countries worldwide. The adults feed on the leaves of strawberries, rhododendrons, azaleas and many other ornamental plants. Indoors, O. sulcatus can infest begonias, ferns, cyclamins, and other common container plants. Adult feeding does not seriously affect the plants, it is the larval feeding on roots of host plants that causes the most serious plant injury. Larvae may also girdle the main stem below the soil line. Leaves will yellow and plants may be stunted or die. O. sulcatus weevils are difficult to control once established because of their nocturnal behaviour and the subterranean habits of the larvae. In strawberries chemical control using a pesticide against the adult weevils after harvest is the most common control method today, however the most effective pesticides will shortly no longer be available and there are few alternative pesticides on the market. Fortunately there are Entomopathogenic nematodes (EPN) that can be used to control the soil dwelling larvae and in Europe there are several products on the market comprising three species (Heterorhabditis bacteriophora, H. megidis, and Steinernema kraussei). The use of these nematodes has shown to be quite successful in potted plants (in nurseries), whereas in field grown crops such as strawberry they are still not consistently effective. In this presentation results from a number of field trials using H. megidis and S. kraussei against O. sulcatus larvae infesting field grown strawberry will be presented and discussed.