Aarhus Universitets segl

Downy Mildew early warning

An early warning campaign for Onion downy mildew will be carried out in 2024 using the Innovate-IPM MildewAlert survey crowdsource App.

Links: Crowdsource App   Dashboard   Getting started user manual   Read more

About the campaign

  • Objective: To establish the status of downy mildew in onion-growing areas in Denmark, including conventional and organic production systems as well as home gardens grown by citizens interested in onion production.

  • Where: We aim to cover the whole of Denmark, so Innovate-IPM invites all stakeholders in the onion industry in Denmark to participate in the campaign.

  • What information is required: Cultivar name, Location name, Growth stage and severity of downy mildew, and one or more photos of the plant.

  • Who to contact: Isaac Kwesi Abuley ( email: ikabuley@agro.au.dk; Mobile: 20556820) or Peter Hartvig (email: peter.hartvig@agro.au.dk; Mobile: 21423192)

  • Where to find the results: Results and photos are publicly available on the MildewAlert dashboard.

  • Samples for genotype and race analysis: If you find unusual attacks (e.g. attacks on a cultivar that is supposed to be very resistant or a possible fungicide control failure), then please contact your advisor or consultant. He can decide if a sample should be sent to the Innovate-IPM lab for further analysis.

You can find the link to the App, where to find results, documentation, and a user guide on this web page