It's March, and there've been a few warm days (58+ degrees) and the squirrels are digging up the lawn in search of grubs. I purchased a curative product by Bayer-"Advanced 24 hr. Grub Killer Plus-Granular" with Trichlorfon 9.3%. Wondering if this can be applied to the lawn now or wait until the weather is consistently nicer. Not sure if these "things" go deeper into the ground when the weather cools down which is happening now (40ish degrees)???