I have 4 acres of cheyenne bermuda that was going great until a year of weeds and neglect took over. I sprayed it for weeds and fertilized it and it is picking up nicely. I have two questions, first where the weeds where heavy at and have died, will the cheyenne regenerate those areas or will I have to reseed? I also noticed that the bermuda made seed heads, Will they germinate and reproduce cheyenne, or are they sterile?