Everything from insects to rodents to the family pet may be responsible for causing burnt patches, holes and other eyesores. Getting to the bottom of the problem is the first step in remediation. Burning and discoloration of the lawn is often a result of high concentrations of dog urine pooling in one area. Diluting the urine by hosing down areas of the lawn can clear up many problems. Birds, raccoons, skunks, moles, and other rodents may feed on grubs that reside just under the thatch of the lawn, and animals may tear up lawns in search of this delicacy. Treating the grub problem usually alleviates damage caused by animals. Mole crickets are another common lawn destroyer. These insects resemble crickets, but they burrow beneath the turf to feed on plant roots. The mole crickets can push up channels of turf as they burrow, exposing roots to the elements and causing the grass to die. Getting rid of the insects can revitalize the lawn.