Looks like you use liquid. I use ortho granuals. Spread around everywhere and water in. I also use it in my veg. garden beds and around my bulbs. I still find one once in a while but not enough to worry about. You have to water after applying so just wash any off the plants. It works great with graveled yards goes right through (between) the gravel to the soil and will last longer than liquid.
Hope this helps Camp Verde

Did you have any luck? I'm going to call our cooperative extension tomorrow. I had to dig up five plants that were thriving until late July. They looked like they were lacking in water, but they were grub infested! Darn things ate the roots of my golden columbine, coral bell, autum sage, bat faced cuphea and Mexican petunia! I think they've gotten into a cape honeysuckle too. I wish I'd known what was causing the damage sooner. I just dug most of them part way up and smushed the grubs, but I need a better solution. Will post if I find one!

Spread around some diatomaceous earth and dig it in. It will slice them to ribbons. You should be able to find some at a feed store that is food grade and a fine powder. f you don't care about food grade, AutoZone sells an oil absorbent that is 100% DE with no cemical additives. It is less than $7 for a big bag. The DE will get rid of slugs too,but it will not harm earth worms.

My roses did very well for a few months after I planted them this past spring. They slowly declined almost to death by July. Just yesterday, I realized one was not going to make it so I pulled it out. While turning the soil in the hole there were at least 20 grubs!! Now of course, I'm wondering if that was the reason they were doing so poorly. I am from Long Island and never had a problem growing anything and had beautiful roses, so I am new to growing anything in Az.I have used DE in my garden for ants, but I am wondering if I should add DE to the soil now, as I was planning on putting new rose bushes in the same holes before I found the grubs. Any solutions or advice will be welcomed. Thanks

I live in Mesa AZ. I found numerous grubs under my Rose bushes when they died. I narrowed it down to compost I bought and mixed in the original dirt when newly planted. I purchased Spectricide grub killer to the new soil I was going to use to replace the rose plant. It sat for a few weeks and when I turned the soil again to replant I found another grub, and it was dead. So I will be mixing that into all my compost and dirt before I plant. I really wanted to try something organic but they just don't seem to work and it is much work to keep buying plants and hoping for the best. Hope this helps