Pest Alert

Cercospora Resistance Maps For 2007

Maps For Previous Years

• 2006
• 2005

Watch for Variegated Cutworms in Sugar Beets

Sugarbeet Root Maggot Counts

NDAWN Links:

• Cercospora Daily Infection Values
• Predictive Leaf Stages & Growing Degree Days

Fusarium
Fusarium yellows of sugarbeet was first identified in the Red River Valley in 1996 near Moorhead, Minnesota. Fusarium yellows is caused by fungus, fusarium oxysporum f. sp. betae, although other fusarium species can be involved as secondary invaders. The disease causes significant reduction in root yield and recoverable sucrose. In storage, quality of infected roots may deteriorate more rapidly than in non-infected roots.

Additional Fusarium information at http://www.ext.nodak.edu

Fusarium Images

• fusarium in foreground
• fusarium (closeup)
• severe fusarium injury
• fusarium root symptoms
• early fusarium root symptoms
• severe stunting with fusarium - July 2004

Rhizomania Field Identification

• early root symptoms-Polk Co, 2002
• early root symptoms-Polk Co, 2002
• typical wine glass shaped root
• typical elongated, petioles, narrow leaves, & fluorescent yellow in color
• typical yellow spots in fields
• aerial view of field with rhizomania
• 2001 strip trials
(to get pictures of the your factory strips contact your agriculturist)

Sugarbeet Management Calendars:

• Crop Stress Factors
• Root Diseases
• Weeds
• Insects
• Leaf Disease