ISSUE 3   May 29, 2008

UPDATE FROM THE PLANT DIAGNOSTIC LAB

The tables below summarize samples received and processed by the Plant Diagnostic Lab for the past week.

Table 1. Number of Sample Submissions by Sample Category from 21-May-2008 through 28-May-2008.

Sample Category

No. of Samples

Seed Health/Phytosanitary

10

Woody Ornamental - Evergreen

6

Other

6

Woody Ornamental - Deciduous

2

Field Crops

2

Table 2. Diagnoses by State, County, and Host from 21-May-2008 through 28-May-2008.

County,
State

Host - Common
(& Taxonomic)

Diagnosis -Common
(& Taxonomic)

Clay, MN
 

Green Ash
(Fraxinus pennsylvanica)

Lecanium scale
(Parthenolecanium spp.)

Clay, MN
 

Spruce
(Picea spp.)

Chemical injury
(abiotic)

Burleigh, ND
 

Blue Spruce
(Picea pungens)

High salts
(abiotic)

Burleigh, ND
 

Blue Spruce
(Picea pungens)

Winter injury
(abiotic)

Burleigh, ND
 

Blue Spruce
(Picea pungens)

Phytotoxic effect
(abiotic)

Burleigh, ND
 

Blue Spruce
(Picea pungens)

Tordon exposure
(abiotic)

Burleigh, ND
 

Blue Spruce
(Picea pungens)

Insufficient light
(abiotic)

Emmons, ND
 

Winter Wheat
(Triticum aestivum)

Wheat Streak Mosaic
(WSMV)

Mclean, ND
 

Blue Spruce
(Picea pungens)

Unknown
(abiotic)

Walsh, ND
 

Pine
(Pinus spp.)

Environ. stress
(abiotic)

Walsh, ND
 

Spruce
(Picea spp.)

Spider mite injury

Kasia Kinzer
NDSU.PlantDiagnosticLab@ndsu.edu
701.231.7854
http://www.ag.ndsu.edu/diaglab

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