Because there are a number of insects that could be and which they could be can also be limited by the location os the plant knowning where you are, aside from generally somewhere in Canada, would be helpful. Possibly taking a bagged and sealed sample to your nearest AgCanada office could be of some help too.

Don't know what your bug is but most small or soft bodied insects can be gotten rid of with insecticidal soap.

mskathleen, some more information would help us to help you :) If you don't have a photo of the bug, approximate size, hard shelled, soft bodied, worm-like, wings...a few or many?
And your location so we know what climate, different insects cause problems in areas of particular weather and not in others.