American Society of Sugar Beet Technologists

Section C – ENTOMOLOGY & PLANT PATHOLOGY


DEGREE-DAY MODELING TO FORECAST PEAK ACTIVITY
 
OF SUGARBEET ROOT MAGGOT FLIES

 

Mark A. Boetel,1*, Robert J. Dregseth1, Allen J. Schroeder1, and F. Adnan Akyüz2

1Department of Entomology, North Dakota State University, Dept. 7650,

P.O. Box 6050, Fargo, ND 58108, and 2Department of Soil Science,

North Dakota State University, Dept. 7680, P.O. Box 6050, Fargo, ND 58108

 

MOLECULAR BASIS OF FUNGICIDE RESISTANCE IN CERCOSPORA BETICOLA

 

Melvin D. Bolton1*, Gary A. Secor,2 Viviana Rivera-Varas,2  and Mohamed F. R. Khan2. 1USDA, Agricultural Research Service, 1605 Albrecht Blvd N, Fargo, ND 58102 and 2Department of Plant Pathology, North Dakota State University, Fargo, ND 58108

 

CONTROL OF RHIZOCTONIA CROWN AND ROOT ROT BY SEED TREATMENT, IN-FURROW, AND POSTEMERGENCE FUNGICIDES IS AFFECTED BY DISEASE ONSET AND SEVERITY 

Jason R. Brantner, * and Carol E. Windels
University of Minnesota, Northwest Research and Outreach Center, Crookston, MN  56716

EVALUATION OF FUNGICIDE SEED TREATMENTS FOR CONTROL OF RHIZOCTONIA SOLANI IN SUGARBEET IN SOUTHERN MINNESOTA

 

Mark W. Bredehoeft* and Chris Dunsmore

Southern Minnesota Beet Sugar Cooperative, 83550 County Road 21, Renville, MN 56284

 

Cercospora Beticola Insensitivity in Michigan and Michigan Sugar Company’s Resistance Management Strategies

 

Gregory M. Clark1*, James F. Stewart2, Lee A. Hubbell2, William W. Kirk3,

 and Linda E. Hanson3, 4

1Michigan Sugar Company, 2600 S. Euclid Ave., Bay City, MI 48706,

2Michigan Sugar Company, 1459 S. Valley Center Dr., Bay City MI 48706,

3Michigan State University, Department of Plant Pathology, East Lansing, MI 48824, and

4USDA-ARS, East Lansing, MI 48824
 

INSECTICIDAL SEED TREATMENTS TO MANAGE WIREWORMS AND SPRINGTAILS IN SUGARBEET: A MULTI-YEAR ASSESSMENT 

 

Robert J. Dregseth,1*, Mark A. Boetel,1, Allen J. Schroeder1, and Ayanava Majumdar2. 1Department of Entomology, North Dakota State University, Dept. 7650, P.O. Box 6050, Fargo, ND 58108, and 2Alabama Extension Service, Auburn University, Auburn, AL 36830

 

MYCOTOXIN PRODUCTION AND COLONIZATION PATTERNS OF DIFFERENT FUSARIUM SPP. IN SUGAR BEET 

Mareen Gollnow, Daniela Christ, Christa Hoffmann and Mark Varrelmann*
Institute of Sugar Beet Research, Departments of Phytopathology and Physiology,
Holtenser Landstr. 77, 37079 Göttingen, Germany

 

RHIZOCTONIA SOLANI; CONTROL MEASURES IN MICHIGAN

 

Lee A Hubbell1*, James F. Stewart1, Brian J. Groulx1, Gregory M. Clark2,

1Michigan Sugar Company, Agricultural Research Center, 1459 S. Valley Center Drive,

Bay City, MI 48706 and 2Michigan Sugar Company, 2600 S. Euclid Avenue,

Bay City, MI 48706.

 

INTEGRATING FUNGICIDE SEED, IN-FURROW FUNGICIDES AND FUNGICIDE BAND APPLICATIONS FOR IMPROVED CONTROL OF RHIZOCTONIA CROWN AND ROOT ROT

 

Barry J. Jacobsen1, Ken Kephart2and Alice Pilergam1

1.Department of Plant Sciences and Plant Pathology, Montana State University,

Bozeman, MT. 59717-3150, 2. Montana Agricultural Experiment Station,

Southern Agricultural Research Center, Huntley, MT.

 

WHAT ARE THE OPTIONS FOR MANAGING RHIZOCTONIA SOLANI ON SUGARBEET?

 

Mohamed F. R. Khan

Plant Pathology Department, North Dakota State University and

 University of Minnesota,Fargo, ND 58108-6050

 

ASSESSMENT OF STROBILURIN RESISTANCE IN CERCOSPORA BETICOLA ON SUGAR BEET IN MICHIGAN AND NEBRASKA, USA 

 

William W. Kirk1*, L.E. Hanson1,2, N. Rosenzweig1, G.D. Franc3, W.L. Stump3,

Q.W. Jiang1, E. Gachango1, G. Clark4 and J. Stewart4

1 Department of Plant, Soil and Microbial Science, Michigan State University, 612, Wilson Road, 35 Plant Biology Building, East Lansing, MI 48824, 2 USDA-ARS, 1066 Bogue Street, Room 494, East Lansing, MI,48824, 3 Department of Plant Sciences, University of Wyoming, Laramie, WY 82071, 4Michigan Sugar Company, Euclid Road, Bay City, MI 48706.

 

ONE SYNGENTA: SEED, SEED CARE, CHEMISTRY AND TECHNOLOGY FOR TOTAL SUGAR BEET HEALTH 

Rebecca Larson1*, Britt-Louise Lennefors2, David Belles3, Bill Gilbert1, Doug Ruppal4, Thomas Kraft2, Elisabeth Wremerth-Weich2, Anna Pranger1, and Neil Glynn1
1
Syngenta, 1020 Sugar Mill Road, Longmont, CO 80501, 2Syngenta, Sabyholmsvagen 24 Box 302, Landskrona, Sweden 261-23, 3Syngenta, 4037 E. Karsten Drive, Chandler, AZ 85249, and 4Syngenta, 5146 Rogers Road, Akron, MI 48701

DEVELOPMENT OF MICROARRAY BASED DETECTION OF SUGAR BEET COLONIZING MICROORGANISMS 

Sebastian Liebe and Mark Varrelmann*
Institute of Sugar Beet Research, Department of Phytopathology, Holtenser Landstr.
77, 37079 Göttingen, Germany

 

CONTROL OF RHIZOCTONIA CROWN AND ROOT ROT WITH SEED TREATMENTS AND POST APPLIED FUNGICIDES IN COMMERCIAL  GROWER FIELDS

 

Christopher D. Motteberg, 1*, Peter C.Carson2, Allan W. Cattanach1, and Craig J. Stansill2,

1American Crystal Sugar Company, 101 North Third Street, Moorhead, MN, 56560 and

2 Carson Farms, 7953 Hwy 81 St. Thomas ND 58276
 

QUADRIS® (AZOXYSTROBIN) AND VERTISAN™ (PENTHIOPYRAD) FUNGICIDE EFFICACY COMPARISONS ON NATURAL RHIZOCTONIA INFECTIONS IN SUGARBEETS
 

Steven S. Poindexter* and Thomas J. Wenzel

Michigan State University Extension, One Tuscola St., #100, Saginaw, MI 48607

 

SEASONAL FLUCTUATIONS IN THE BENEFICIAL ARTHROPOD COMPLEX ASSOCIATED WITH CONVENTIONAL TILLED AND ZONE TILLED SUGAR BEETS

 

Johan Pretorius1*, Jeff Bradshaw1 and Gary Hein2

1University of Nebraska-Lincoln, Panhandle Research and Extension Center,

4502 Avenue I, Scottsbluff, NE 69361-4939 and 2University of Nebraska-Lincoln,

279D Plant Sciences Hall, Lincoln, NE 68583
 

RELATIONSHIP BETWEEN BEET NECROTIC YELLOW VEIN VIRUS AND INCIDENCE AND SEVERITY OF RHIZOCTONIA ROOT ROT

 

Charles M. Rush1, Beau Bealmer*1, Mark Bredehoeft2 and Chris Dunsmore2

1Texas A&M AgriLife Research, P. O. Drawer 10, Bushland, TX 79012

and 2Southern Minnesota Beet Sugar Cooperative, Reneville, MN

 

FREQUENCY, CHANGES AND DISTRIBUTION OF FUNGICIDE SENSITIVITY IN CERCOSPORA BETICOLA POPULATIONS FROM 1998 TO 2012

 

Gary A. Secor1*, Viviana V. Rivera-Varas1, Melvin D. Bolton2 and Mohamed F. R. Khan1

1Department of Plant Pathology, North Dakota State University, North Dakota State University, Department 7660, Box 6050, Fargo, ND 58108 and 2USDA-ARS, Northern Crops Science Lab, 1605 Albrecht Avenue, Fargo, ND 58102

 

CHARACTERIZATION OF A POPULATION OF FUSARIUM OXYSPORUM, FROM SUGAR BEET, USING THE POPULATION STRUCTURE OF PUTATIVE PATHOGENICITY GENES 

Kimberly M. Webb*, Paul Covey, Brett Kuwitzky, and Mia Hanson
USDA-ARS, Sugar Beet Research Unit, 1701 Centre Ave., Fort Collins, CO 80526