SNEAK A PEEK INSIDE THE CROP DIAGNOSTIC CENTRE

SNEAK A PEEK INSIDE THE CROP DIAGNOSTIC CENTRE
Manika Pradhan and Holly Derksen – Manitoba Agriculture, Food and Rural Development
What we need:
Where we are and what we do:
201-545 University Cres, Winnipeg
Established: 1972
Disease diagnosis:
Foliar diseases, root diseases,
harvest samples, storage
diseases
Weed identification
Insect identification
How we do it:
Visual diagnosis
Moist chamber
Agar plate testing
ELISA
ImmunoStrips test
Biolog technology for bacterial diseases
Collaborate with other labs
What we saw in 2014 (continued):
Fresh whole plant sample
Detailed information regarding crop practices
Tips: Visit the link below for more info
http://www.gov.mb.ca/agriculture/crops
/crop-diagnostic-services/
Table 1. Showing the number of samples in last
five years : 2010 – 2014
Sample
2014 2013 2012 2011 2010
Disease Injury
735
534
787
528
663
Insect Injury
68
35
69
44
43
Herbicide injury
67
106
98
120
96
Survey/Research
158
438
234
215
115
Insect ID
3
14
30
20
19
Weed ID
51
107
74
82
94
Total Diagnoses
1082 1234 1292 1009 1030
Table 2. Most common disease of common crops
in last five years : 2010 – 2014
Crop
Wheat
2014
Figure 3. Downy mildew and Phytophthora root rot of soybean
(samples submitted to the lab)
2013
2012
2011
Figure 4. Cereal disorders - bacterial blight and tan spot in
wheat , bacterial blight in oats, and physiological leaf spot in
winter wheat were identified
2010
Leaf
Leaf
Disease Root Rot Root Rot Root Rot Disease
Canola Blackleg Blackleg Blackleg Blackleg Blackleg
Leaf
Soybean Root Rot Disease Root Rot Root Rot Root Rot
Figure 5. Goss’s Wilt of
corn samples have
been identified each
year since the initial
detection of this
disease in Manitoba in
2009
What we saw in 2014:
Figure 1. Agar plate testing showing growth of Fusarium
graminearum (left) and ELISA test showing both negative
and positive results for WSMV (right)
What we don’t do:
Pathogen race testing
Nutrient analysis
Herbicide resistance/residue testing
Figure 2. 56/139 canola samples were diagnosed with blackleg
in 2014, making it the most common canola disease submitted
Figure 6. Blackleg, silver scurf and black dot, and
environmental leaf burn on potato submitted in the lab