I had no weeds for a pre seed burnoff this spring due to cool temps. Did my first pass about a month ago. Then it rained for a month. Its dry enough to spray now but my canola is in 80-90% bloom. It could sure use another pass. Any one try spray this late? Trying to decide the lesser of 2 evils. Hate to look at weeds sticking out above crop in august. of course its right along a hiway.