To check for lawn grubs lift a piece of your turf! If Grubs are the culprit, the dead patch will roll up like a carpet, or you'll be able to pull up the grass and see that it has no roots. Irregularly-shaped dead patches appear in your well-irrigated lawn in late summer or early fall. Contact Turf King in Muskoka to take care of your lawn grub problem before it gets worse! www.TurfKingMuskoka.com