Can You Apply Lawn Fertilizer and Grub Control At The Same Time??

Not sure if this question has been asked here already, but just wondering if you can apply lawn fertilizer and a separate grub control product at the same time. A few days ago, we just applied the "Scotts Super Turf Builder Summerguard - With Bug Control To Kill Ants, Fleas, and Ticks" which is a 30-0-4 formula. We also have a bag of the "Bayer Advanced Season Long Grub Control Plus Turf Revitalizer" which is a 6-0-1 formula.
The "Scotts Summerguard" doesn't kill grubs, and so we have to use the separate grub control. to try to kill the grubs, because last September we had a pesky skunk that ripped up and mutilated our yard every night last September, October, and November.
On the back of the "Bayer Advanced Grub Control" bag, it states that the product has to be applied before August 15th. So my question is, should we wait another week or so before applying the grub control, or can it be applied now? The "Scotts Summerguard" has 30% percent nitrogen, and the "Bayer Grub Control" had 6% percent nitrogen. If we apply the "Bayer Grub Control" right now, won't that be too much nitrogen ( 36% percent nitrogen in one weeks time ), for the lawn to handle??
Any advice would greatly be appreciated.
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