Scott Meers with Alberta Agriculture provides an update on the insect situation for Alberta canola crops.
The good news is that there is no evidence at this point that aster yellows will be a significant problem for growers in 2013.
For more information on the status of leaf hopper including the instructions for submitting leaf hoppers for testing read this Canola Watch article: http://www.canolawatch.org/2013/06/19/aster-yellows-no-evidence-of-a-problem-in-2013/