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UID:20250818T144917EDT-8307mjvtUx@132.216.98.100
DTSTAMP:20250818T184917Z
DESCRIPTION:Dr. Susanne Vogelgsang\, Senior Scientist at Agroscope in Zuric
 h\, Switzerland.\n\nFusarium head blight (FHB) is one of the world’s most 
 noxious cereal diseases. To develop prevention strategies\, 686 wheat grai
 n samples and information on their cropping history were obtained from Swi
 ss growers over eight years. Grains were examined for Fusarium species inc
 idence\, mycotoxin content\, the abundance of F. graminearum (FG) and F. p
 oae (FP) DNA and three chemotypes. Deoxynivalenol (DON)\, zearalenone (ZEA
 ) and nivalenol (NIV) were the most frequently detected toxins. For DON\, 
 11% and for ZEA\, 7% of all samples exceeded the European maximum limits f
 or unprocessed cereals. A multiple correspondence analysis revealed that h
 igh levels of FG\, DON and ZEA were mainly observed in samples from fields
  with previous crop maize\, reduced tillage\, cultivars with poor FHB resi
 stance and strobilurin-based fungicides. Other previous crops and/or ploug
 hing decreased the DON content by 78 to 95%. In contrast\, high levels of 
 FP and NIV were associated with samples from ploughed fields and previous 
 crop canola. These findings and the negative correlations between FP DNA\,
  FG incidence and DON suggest a different ecological niche for FP. For gro
 wers that depend on a maize-wheat rotation\, supplementary strategies are 
 needed. The antagonist Clonostachys rosea applied onto crop residues appea
 rs to be highly promising. Furthermore\, inter and cover crops in maize-wh
 eat rotations and biofumigation could reduce FG inoculum through physical 
 barriers or through antifungal properties.\n\nABOUT THE SPEAKER\n\nDr. Sus
 anne Vogelgsang obtained a BSc in Agrobiology from the University of Hohen
 heim\, Germany in 1994\, and a PhD in Plant Science from 9IÖÆ×÷³§Ãâ·Ñ
 \, Canada in 1998. As of 2003\, she worked as a Senior Scientist at Agrosc
 ope in Zurich\, Switzerland\, and since 2011\, she is head of the Agroscop
 e research group 'Ecological Plant Protection in Arable Crops'.\n\n \n
DTSTART:20190117T150000Z
DTEND:20190117T154500Z
LOCATION:R4-047\, Raymond Building\, CA\, QC\, St Anne de Bellevue\, H9X 3V
 9\, 21111 Lakeshore Road
SUMMARY:Sustainable mycotoxin management in cereals
URL:/macdonald/channels/event/sustainable-mycotoxin-ma
 nagement-cereals-293228
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