In the spring, many people will find grubs in their lawns (or the skunks and raccoons find them and leave a big mess.) The good thing is that the skunks are getting rid of the grubs. If you could just teach them to put the grass back after they have taken the grubs out, I’m sure we could hire them out as grub eradicators.
Controlling the grubs in the spring is good for your neighbourhood, but not necessarily for your lawn. If there are less grubs in your lawn now, there will be less adults flying in the neighbourhood. But since the adults can fly, even if we were able to get rid of all the grubs in your lawn in the spring, it doesn’t mean that the adults from down the road or across the street won’t fly over this summer and decide to lay their eggs on your lawn.