A: I’ll start with my own favorite things to do when I see the occasional grub in my flowerbeds. Ignore them, or toss them over a shoulder for the birds.
White grubs are June bug larvae; they’re omnipresent in North Texas and it would be surprising indeed if you did not run into a few in the flowerbeds as you prep for fall plantings. The only reason to treat right now with just a few grubs around would be if you had armadillos plowing through your flowerbeds, in an effort to reduce the food supply for the hungry critters. A few grubs across multiple flats of pansies isn’t all that bad, and you’ll never notice the trivial amount of damage they might do.
Now, if you start finding five or more every square foot, or start observing a lot of damage in your turfgrass, the ideal time for preventive treatment in our area is generally sometime in July, or to kill an active infestation whenever you observe them. Treat with Bonide Insect & Grub Control at the rate of one 6 lb bag per 7,500 sq. ft. for preventive treatment, or one bag per 5,000 sq. ft. for heavier infestations.