Organic production in Norway

Present status of the Norwegian organic sector: -Official target of 10% organic production in 2010. -Organic production receives public subsidies -Marketing and production of plant products successful and growing -Marketing of livestock products successful and growing -Large portion of ecological products are sold unmarked together with other product

Ozon (O3)-behandling av potet mot tørråte

This hand-out was presented to participants at a field demonstration in an experimental field with potatoes, where varouious concentrations and applications of water enriched with ozone(O3) was tested as a means to control late blight

Ozonvann mot gråskimmel i jordbær

I dette prosjektet er det blitt testet om bruk av ozonholdig vann kan kontrollere gråskimmel i et jordbærfelt. Ozonholdig vann ble sprøytet direkte på plantene i et felt og resultatene sammenlignet med effekten av bruk av fungicider og vann uten tilsetning. Resultatene viste at ozoholdig vann har en effekt på gråskimmelsoppen men mer forskning må til for å optimaleisere metoden for å utvikle en ny plantevernstrategi

Kartlegging av kunnskap om muligheter for bruk av ozonholdig vann som plantevernmiddel mot gråskimmel i jordbær

Innen jordbærproduksjon kan det oppstå store avlingstap forårsaket av soppsykdommen gråskimmel. Både konvensjonelle og økologiske produsenter etterspør nye tiltak. Et mulig virkemiddel er bruk av ozonert vann. Ozon er et sterkt oksidasjonsmiddel som brukes til å desinfisere teknisk utstyr for blant annet havbruksnæringa, meieriindustrien og helsevesenet. Det er også en internasjonal interesse for å bruke ozonert vann til å inaktivere patogener fra soppsykdommer innen matproduksjon. Egen forskning her i Norge viser at det kan være mulig å kontrollere gråskimmel i jordbærfelt på friland ved bruk av ozonert vann. Utprøvninger i Italia viser at ozonert vann også kan brukes for å kontrollere soppsykdommer på jordbær i veksthus. Imidlertid må det til mer forskning for å utvikle appliseringsmetoden og for å sikre at andre organismer i nærmiljøet ikke tar skade. Lovgivningen som regulerer bruk av ozonert vann til plantevern i matproduksjon er også et hinder før denne metoden kan kommersialiseres

FenceTrap - Kombinert bruk av alternative plantevernmidler for reduksjon av insektskader i jordbær

The strawberry blossom weevil can cause great damage to strawberry plants. The weevil lays eggs inside flower buds and then sever the buds from the stems. The egg inside a bud develop into larva, pupa and adult beetle that hatch out of the bud. The insects overwinter as adult beetles and are ready to start a new life cycle when spring arrives. The strawberry blossom weevil has at several places’ shown signs of resistance to pesticides. In organic production where pesticides are not allowed, there are few measures to prevent invasion by this pest. Therefore, it is desirable to develop new methods to prevent insect damage in strawberry production. To hinder the strawberry blossom weevil from entering a newly established strawberry field of 4.0 da, a 2.3 m high insect fence was mounted around the field before planting of the strawberry plants. Both on the outside and inside the fence there were mounted funnel traps with fragrances that attract the strawberry blossom weevil. The strawberry field produced strawberries for three years and the insect fence was mounted throughout the whole period. With large migrations of strawberry blossom weevils from nearby fields, the results indicate that the insect fence prevented a significant portion of the weevils from entering the field. However, beetles were detected in the field already in the first and second year of the project, weevils that damaged the strawberry plants. The weevil population within the fence developed in line with the population in the nearby field so that the insect damages on the strawberry plants were as great within the fenced field as in the nearby field without fence and traps. Based on the results of this experiment, it is not recommended to use combined insect traps and insect fences to control the strawberry blossom beetle

Bekæmpelse af hindbærsnudebillen

Without effective means the strawberry blossom weevil can cause great yield losses in strawberry production. The weevils lay eggs in flower buds and partially severs the bud from the plant. By developing traps baited with pheromones and plant volatiles we search to manage weevil populations to reduce damage on the strawberry plants

Progress in pest management in organic strawberry production

For tuning up sustainable organic strawberry production new measures in pest management needs to be developed. Both pest insects and pathogenic fungi reduces yields and fruit quality. Present study shows that mass trapping of strawberry blossom weevils by using volatile baited traps is not an efficient measure in an established field. However, in a new study traps will be combined with fencing of the field with insect net. There will also be a study on the effect of using ozonated water as a measure to prevent the fungus related disease grey mould to develop

The use of ozonised water in plant production

What I will talk about: • What is ozone (O3) • Strawberry open field production, spraying with of ozonated water (own study) • Potato production, treating infected seed potatoes and spraying the leaves (own study) • Strawberry greenhouse production, fogger spraying (MET study) • Tomato production, ozone in irrigation water (IAV study

Norway: Organic Agriculture and food 2017

Overview of the present state of organic agriculture in Norwa

Diversitet og tetthet av pollinerende insekter i et jordbærfelt på øya Sekken i Storfjorden, sør om Molde.

Insects may have a great impact on strawberry yields and in many other plants. In a time of climate change and where the number of insects seems to decrease, questions have been asked about how the populations of pollinating insect species are doing. Therefore, in this project we would map the status of these beneficial insects in a strawberry field on the island of Sekken, south of Molde, in the period 2.-15. June 2020. In the experimental field, a square of 25m x 50m was marked. In the experimental square, a total of 12 so-called "pan-traps" were set out to catch insects at four different points. These traps consisted of plastic cups spray-painted either white, blue or yellow, and mounted on piles. The cups were half-filled with mild soapy water. The traps were inspected three times a day throughout the whole trial period. In this square, four observation points were also pointed. At each observation point, a square of 1m x 1m with approx. 100 strawberry flowers were marked. In sequences of 15 min., the frequency and type of insect that came and visited the flowers were recorded. 20 such observations were made at each observation point during the entire experimental period. In the insect traps, 189 different insects were caught. Of these, there were 172 diptera, i.e. flies and mosquitoes. 11 wasps were also caught, which included 7 wild bees. No bumblebees were caught. The catch was very weather dependent with no catches as it was low temperature (<10 ° C) and rain. During the observations 47 hoverflies, 25 wild bees, 7 bumblebees and 5 other flies were observed, altogether 84 insects. These made 139 flower visits. On average, the wild bees visited more flowers than the hoverflies and spend more time on each flower, thus it seems in this strawberry field that the wild bees were most important for the pollination of the flowers