ISSUE 3   May 27, 2010

NDSU PLANT DIAGNOSTIC LAB UPDATE

For May 19-26, 2010, the Plant Diagnostic Lab processed 61 samples (with 144 diagnoses applied). Of these, twelve were wheat samples submitted as part of a wheat virus survey (sponsored by the Great Plains Diagnostic Network), and 7 were routine diagnosis samples. Diagnoses for the wheat survey and routine diagnoses for North Dakota samples are in the table below:

COUNTY

HOST/HABITAT COMMON NAME

DIAGNOSIS/ID COMMON NAME

Benson

Winter Wheat (Triticum aestivum)

High Plains Virus (HPV)

Benson

Winter Wheat (Triticum aestivum)

Wheat Streak Mosaic Virus (WSMV)

Benson

Winter Wheat (Triticum aestivum)

Wheat Streak Mosaic Virus (WSMV)

Benson

Winter Wheat (Triticum aestivum)

Wheat Streak Mosaic Virus (WSMV)

Bottineau

Winter Wheat (Triticum aestivum)

Wheat Streak Mosaic Virus (WSMV)

Cass

Columbine (Aquilegia sp.)

Columbine Leafminer (Phytomyza sp.)

Cass

Rhubarb (Rheum rhabarbarum)

Animal Urine Damage

Cass

Soybean (grain; Glycine max)

Unknown abiotic

Cass

Various ornamentals

Nitrogen Deficiency

Grand Forks

Kentucky bluegrass (Poa pratensis)

Powdery Mildew (Erysiphe graminis)

Mchenry

African Violet (Saintpaulia sp.)

Insufficient Sample

Mckenzie

Spruce (Picea sp.)

Winter Injury

Ward

Winter Wheat (Triticum aestivum)

Barley Yellow Dwarf Strain 2 (BYDV-PAV)

Ward

Winter Wheat (Triticum aestivum)

High Plains Virus (HPV)

Ward

Winter Wheat (Triticum aestivum)

Wheat Streak Mosaic Virus (WSMV)

Ward

Winter Wheat (Triticum aestivum)

Wheat Streak Mosaic Virus (WSMV)

Ward

Winter Wheat (Triticum aestivum)

Wheat Streak Mosaic Virus (WSMV)

Ward

Winter Wheat (Triticum aestivum)

Wheat Streak Mosaic Virus (WSMV)

Kasia Kinzer
NDSU Plant Diagnostician
Web: www.ag.ndsu.nodak.edu/diaglab
e-mail: kasia.kinzer@ndsu.edu
Telephone: 701-231-7854


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