A few grubs aren't in issue. There are quick kill products that you can use right now if you think it's bad enough. I won't run a quick kill product unless I'm finding a lot per square ft.
The quick kill grub control will not prevent future grubs, so if you want to kill them now and prevent them in the future you'd need to use two products in most cases. The quick kill products contain triclorfon aka Dylox. Those products also kill a bunch of other insects too, so if you don't have a lot of grubs it's not good to use it.
Scott's grubex is a preventative treatment using chlorantraniliprole. I think it needs to be applied in May as it takes some time for the active ingredient to get working in the soil. It's likely not too late though to use this product, but I'd have to look at the label. I've never used that chemical so I can't give you much more details on that.
The most common preventative is imidicloprid aka Merit. Usually Merit is applied mid-June up until early July.
Some of the grub preventatives have fertilizer or more commonly just the potassium, so like a 0-0-7 analysis.