I started renovation of a lawn today, Homeowner build in a hayfield and is wanting the K31 removed and TTTF hydroseeded seeded. While removing the old grass I noticed grubs everywhere. My question is, What kind of problem, if any, will I have adding a grub control along with the hydroseeding mix and applying both at the same time? I realize that I will be removing most of the grubs along with the old grass and I am tilling under the soil and raking with a power rake, but I feel now would be a good time to tackle the grub problem before they get worse. I plan on seeding tomorrow if the rain will let me finish prep.