When bugs and grubs are actively destroying your lawn you need something to work fast. Bayer BioAdvances 24 Hour Grub Control will kill them overnight stopping the damage from progressing. Apply 10 pounds per 5,000 square feet and water in for immediate control.
Scotts Edgeguard spreader setting for 2 lbs per 1,000 sq ft: 4.5
Scotts Accugreen 3,000 drop spreader setting: 5.25