Lime your yard we use lime pellets do in spring and fall
I was told by a farm lady to put a toothpick next to my plants and it will prevent grubs from feeding on the plant. It only takes one toothpick per stem and it works! I was amazed!
I use a spreader with grub granules. Stops chiggers, ticks and other pests.
Diazinon was the old trade name and I forgot the new names, sorry.