Varsling mod bladsvampe

Author:

Anne Lisbet Hansen

ID:

407-2014

Conclusion:

I lighed med tidligere år er der i 2014 gennemført et varslingssystem for bladsvampe i sukkerroer med ugentlige observationer. Der er observeret 17 steder i dyrkningsområdet og resultaterne danner grundlag for anbefaling til dyrkere og rådgivere om bekæmpelse. Dominerende svampe i 2014 har været meldug og rust. Varsling for første svampebehandling er foretaget uge 30-31, som følge af begyndende angreb af meldug og rust. Varsling for anden behandling er sket uge 33-34.

Conclusion:

As in previous years, leaf disease monitoring has been conducted in Denmark in 2014. On 17 sites through out the main growing area, incidence and development of rust, powdery mildew, Cercospora and Ramularia have weekly been assessed and recorded for selected varieties. The results are used for recommendations to growers and will serve as documentation for the development of fungal sugar beet disease. Dominating leaf diseases have in 2014 been powdery mildew and rust. First warning for possible need of first application, if symptoms could be observed, has been sent out in week 30-31. Recommendations for second have been sent out week 33-34.

Publication date:

05/03/2016