ISSUE 9   June 29, 2006

PLANT DIAGNOSTIC LAB SUMMARY

Below is a summary of samples diagnosed in the past week (research samples and seed health testing results are not included):

Host

Diagnosis

Taxonomic name

County

Alfalfa

Herbicide Injury; Exposure

Abiotic pathology

Walsh

Apple

Botryosphaeria Canker possible

Botryosphaeria sp.

Cass

Ash

Ash Rust

Puccinia sparganioides

LaMoure

Ash

Ash Rust

Puccinia sparganioides

Sheridan

Ash

Nutrient Imbalance

Abiotic pathology

Cass

Beet; Sugar

Fusarium Basal Stem Rot

Fusarium oxysporum

Cass

Beet; Sugar

Herbicide injury

Abiotic pathology

Cass

Beet; Sugar

Herbicide injury

Abiotic pathology

Clay

Corn

Growth Regulator Effect

Abiotic pathology

Ransom

Corn

Herbicide injury

Abiotic pathology

Ransom

Corn

Poor Or Insufficient Sample

Identification analysis

Cass

Cotoneaster

Oystershell Scale

Lepidosaphes ulmi

Clay

Crabapple

Apple Scab

Venturia inaequalis

Cass

Insect ID

Confused Flour Beetle

Tribolium confusum

 

Maple

Phyllosticta Leaf Spot

Phyllosticta sp.

Cass

Maple

Scorch

Abiotic pathology

Cass

Soybean

Growth Regulator Effect

Abiotic pathology

Barnes

Soybean

Growth Regulator Effect

Abiotic pathology

Cass

Soybean

Poor or Insufficient Sample

 

Cass

Spruce

Cytospora Canker

 

Cass

Spruce

Rhizosphaera Needle Cast

Rhizosphaera

Cass

Spruce

Spider Mite

 

Cass

Sunflower

Wireworm

 

Polk

Wheat

Growth Regulator Effect

Abiotic pathology

Cass

Wheat

Growth Regulator Effect

Abiotic pathology

McIntosh

Wheat

Wheat Streak Mosaic Virus

Virus; rhymovirus: Potyviridae

Bottineau

Wheat

Wheat Streak Mosaic Virus

Virus; rhymovirus: Potyviridae

Cass

Wheat

Wheat Streak Mosaic Virus

Virus; rhymovirus: Potyviridae

Cass

Wheat

Wheat Streak Mosaic Virus

Virus; rhymovirus: Potyviridae

Cass

Wheat

Wheat Streak Mosaic Virus

Virus; rhymovirus: Potyviridae

McIntosh

Wheat

Wheat Streak Mosaic Virus

Virus; rhymovirus: Potyviridae

Towner

Wheat

Wheat Streak Mosaic Virus

Virus; rhymovirus: Potyviridae

Towner

 

Kasia Kinzer
NDSU Plant Diagnostic Lab
Website: www.ag.ndsu.nodak.edu/diaglab
e-mail: diaglab@ndsuext.nodak.edu
Telephone: 701-231-7854
206 Waldron Hall, PO Box 5012
Fargo, North Dakota 58105


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