I was hoping to figure out what I did wrong. I applied a granular product with fertilizer and Dimension (0.107%). I made 1 application, and applied the product around April 1st, which is right about the time you start mowing around here (Kansas). I applied at the suggested rate for the transition zone of ~4 lbs/1,000 sq. ft. for grass that is cut tall, because I mow these lawns around 3 inches. For short cut grass like golf courses they recommend ~8lbs/1,000 sq. ft. It's now August and just about all of these lawns are getting crabgrass. So, any ideas on what I did wrong? Is Dimension the product of choice? Should I have applied at the higher rate or made 2 applications? We got heavy rain after I made the application, would this affect the herbicide? I appreciate any help.