
In Alberta, there are only 7 crop districts. Along the southern part, they are numbered from 1 in the east to 3 in the west. Along the central part of Alberta, they are numbered 4 and 5, and 6 is situated just above these. The crop district encompassing the northwestern part, including the Peace River area, is number 7.

This graph illustrates the difference in species infecting FDK in Alberta. Although F. graminearum was dominant in crop districts 1, 2, 3 and 6, very few FDK were found outside of CD’s 1 and 2. Therefore the results for CD’s 3 and 6 must be considered in light of this fact. F. avenaceum and Septoria nodorum dominated the few FDK found outside of southern Alberta.

This graph illustrates the difference in species infecting FDK in Alberta. F. graminearum was dominant in crop districts 1 and 2, infecting 14 of the 24 samples (334 of 493 FDK) from CD1 with FDK and 30 of 72 (284 of 990 FDK) from CD2. F. avenaceum and Septoria nodorum dominated the few FDK found outside of southern Alberta.

This graph illustrates the difference in species infecting FDK in Alberta. Outside of crop districts 1 and 2 very few FDK are encountered. F. graminearum was dominant over F. culmorum in crop district 2 whereas F. culmorum dominated crop district 1. Outside of southern Alberta, the very few FDK detected were primarily caused by F. avenaceum and Septoria nodorum

This graph illustrates the difference in species infecting FDK in Alberta. Outside of crop districts 1 and 2 very few FDK are encountered. As in 2004, F. graminearum was dominant over F. culmorum in both crop districts 1 and 2. In the northern crop districts, the very few FDK detected were primarily caused by F. avenaceum and Septoria nodorum.

This graph illustrates the difference in species infecting FDK in Alberta. Outside of crop districts 1 and 2 very few FDK are encountered. In contrast to 2003, F. graminearum was dominant over F. culmorum in both crop districts 1 and 2. In the northern crop districts, the few FDK detected are more often caused by Septoria nodorum than any of the Fusarium species.

This graph illustrates the difference in species infecting FDK in Alberta. Outside of crop districts 1 and 2 very few FDK are encountered. F. culmorum was dominant in both crop districts 1 and 2. In the northern crop districts, the few FDK detected are more often caused by Septoria nodorum than any of the Fusarium species.

This graph illustrates the difference in species infecting FDK in Alberta. In 2002 unusually wet weather in southern Alberta resulted in a considerable increase in the number of wheat samples with FDK and the number of FDK within the affected samples. Outside of crop districts 1 and 2 very few FDK are encountered. F. graminearum and F. culmorum were dominant in crop districts 1 and 2 respectively. In the northern crop districts, the few FDK detected are more often caused by Septoria nodorum than any of the Fusarium speecis.