One of our State of Illinois licensed technicians are ready to apply either preventative or curative applications for not only grub infestation but fungal diseases as well. Our routine is to offer a once a year application of insecticide to treat for grubs. This is done in late June before they hatch. This is preferable to having to apply a much heavier dose to kill full grown grubs you may find later in the season only after they have already done damage to your lawn.