Isolation of Fusarium graminearum from cereal, grass and corn residues from Alberta, 2001–2003

Figures & data

Fig. 1. Approximate locations of cereal fields (a), grass sites (b), and corn fields (c) surveyed in three regions of Alberta, 2001–2003.

Table 1.  The number of cereal and corn fields, and grass sites surveyed in three regions of Alberta, 2001–2003

	Year, residue type and number of fields/sites
	2001			2002			2003*
Region	Cereal	Grass	Corn	Cereal	Grass	Corn	Cereal	Grass	Corn
Central Alberta	50	15	–	20	25	19	49	36	20
Peace River region	–	–	–	11	14	–	33	15	–
Southern Alberta	3	31	7	30	33	12	43	32	13
Yearly totals	53	46	7	61	72	31	125	83	33
Note: *Includes four corn fields collected from central Alberta in the early spring of 2004.

Table 2.  Listing of selected Fusarium graminearum isolates, origin and NRRL number, 2001 to 2003

CGC Number*	AAFC Lacombe Number**	Province Collected	Year	Source	Crop	Plant part	NRRL
A-01-corn2	FR104	Alberta	2001	Southern Alberta	corn	stalk	43086
A-01-corn3	FR105	Alberta	2001	Southern Alberta	corn	stalk	43087
A-01-corn4	FR60	Alberta	2001	Southern Alberta	corn	stalk	43088
A-02-corn7	FR321	Alberta	2002	Southern Alberta	corn	stalk	43099
A-02-corn8	FR322	Alberta	2002	Southern Alberta	corn	stalk	43100
A-02-corn9	FR323	Alberta	2002	Southern Alberta	corn	stalk	43101
A-02-corn10	FR326	Alberta	2002	Southern Alberta	corn	stalk	43102
A-02-corn11	FR327	Alberta	2002	Southern Alberta	corn	stalk	43103
A-02-corn12	FR328	Alberta	2002	Southern Alberta	corn	stalk	43104
A-02-corn13	FR330	Alberta	2002	Southern Alberta	corn	stalk	43105
A-02-corn14	FR332	Alberta	2002	Southern Alberta	corn	stalk	43106
A-03-corn4	FR530	Alberta	2003	Southern Alberta	corn	stalk	43111
A-03-corn5	FR531	Alberta	2003	Southern Alberta	corn	stalk	43112
A-03-corn6	FR532	Alberta	2003	Southern Alberta	corn	stalk	43113
A-03-corn7	FR533	Alberta	2003	Southern Alberta	corn	stalk	43114
A-03-corn8	FR534	Alberta	2003	Southern Alberta	corn	stalk	43115
A-03-corn9	FR535	Alberta	2003	Southern Alberta	corn	stalk	43116
A-03-corn10	FR536	Alberta	2003	Southern Alberta	corn	stalk	43117
A-03-corn11	FR537	Alberta	2003	Southern Alberta	corn	stalk	43118
A-03-corn12	FR538	Alberta	2003	Southern Alberta	corn	stalk	43119
A-03-corn13	FR539	Alberta	2003	Southern Alberta	corn	stalk	43120
A-03-corn14	FR540	Alberta	2003	Southern Alberta	corn	stalk	43121
A-03-corn15	FR541	Alberta	2003	Southern Alberta	corn	stalk	43122
A-03-corn16	FR542	Alberta	2003	Southern Alberta	corn	stalk	43123
Notes: * Grains Research Laboratory, Canadian Grain Commission, Winnipeg, MB culture number.
** Agriculture and Agri-Food Canada, Lacombe, AB culture number.
*** US Department of Agriculture, Agricultural Research Service (ARS) Culture Collection, Peoria, IL assigned NRRL number.

Table 3.  Frequency of Fusarium spp., typically associated with fusarium head blight symptoms of cereals, infesting cereal crown and node tissues, and grass and corn node tissues in the central, southern and Peace River regions of Alberta, 2001–2003*

	Mean % of fields from which each Fusarium spp. was detected				Mean average % infection per field
Region, and Fusarium spp.	Cereal crowns	Cereal nodes	Grass nodes	Corn nodes	Cereal crowns	Cereal nodes	Grass nodes	Corn nodes
Central Alberta
F. graminearum	0	0	0	0	0	0	0	0
F. pseudograminearum	10.1	8.4	0.0	5.1	0.9(24.0)**	0.7(28.0)	0	0.2(4.0)
F. avenaceum	93.3	92.4	69.7	87.2	37.9(100)	38.6(100)	9.4(52.0)	14.5(52.0)
F. culmorum	52.1	38.7	7.9	56.4	10.4(72.0)	5.5(64.0)	0.6(24.0)	11.6(64.0)
Peace River region
F. graminearum	0	2.3	0		0	0.1(4.0)	0
F. pseudograminearum	0	0	3.4		0	0	0.4(12.0)
F. avenaceum	86.4	88.6	58.6		20.2(76.0)	22.5(64.0)	5.7(40.0)
F. culmorum	81.8	72.7	27.6		25.1(96.0)	19.8(96.0)	2.1(16.0)
Southern Alberta
F. graminearum	9.2	7.9	3.1	75.0	0.9(50.0)	0.9(46.7)	0.1(4.0)	19.0(60.0)
F. pseudograminearum	32.9	28.9	11.5	3.1	5.6(69.2)	4.4(57.7)	0.6(10.3)	0.4(12.0)
F. avenaceum	39.5	39.5	43.8	25.0	3.9(51.9)	4.1(32.1)	2.3(16.0)	1.6(16.0)
F. culmorum	85.5	75.0	24.0	93.8	26.5(88.5)	14.4(60.7)	1.1(8.3)	26.2(84.0)
Notes: * Includes four corn fields sampled from central Alberta in the early spring of 2004.
** Numbers in parentheses represent the maximum average % infection per field that was observed.