Peter, its me Laura! Hows the office looking? lol two questions…I have literally thousands of tiny hills with one entrance hole all throughout my lawn…. is that from beatles emerging from last years grubs? two.. I have bent grass and want to know the easiest way to get rid of it…. can i kill it with a herbicide, rake the heck out of it and reseed or does if have to be dug up? HELP????
Laura, If The Beatles are emerging from your lawn then you need to start selling tickits!!!! Seriously though, there are several insects that could emerge from the soil as they go from the pupa (cocoon) stage to the adult stage. Japanese and European Chaffer Beetles are among those insects but there are also other beetles wasps and bees that also do this. The fact that there are ‘Thousands’ leads me to believe that it probably Japanese or Chafer beetles that caused this in your lawn. Naturall you’ll want to apply your grub control this month (July) so thre next generation of grubs will be killed when they start hatching in August. To get rid of bentgrass you’ll need to kill it and reseed in mid-august. You can spray the area with Kleen-up then rake off or dug out the dead grass. You could also cover the area of bent grass with clear plastic and anchor the perimeter with rock or something heavy so the plastic is sealed to the ground. The sun will heat the air under the plastic so high that the grass dies. You’ll still neeed to rake off or shovel ot the dead grass before reseeding.