In very early March I applied Jonathon Greene Mag-i-Cal. A few weeks later it seemed like my lawn was getting the slight appearance of bands of slight green.
At the very end of March I noticed that everyone's lawn in my neighborhood was greening up more than mine so I applied JG crabgrass preventer with Greenup.
Now it seems the bands are more pronounced than before. I used a drop spreader for both applications. Could it be that I rushed the Mag-i-cal application and didn't make tight passes? It was hard to judge where to make each pass because we've had a very dry Spring here in NJ and the grass is well, dry and wheelmarks from the spreader are not very visible.