Keith from Mont Belvieu writes
Cyonara Lawn, Yard, and Garden Spray is labeled to treat grubs: you should water the treated area with an additional 1/4 to 1/2 inch of water. If you have just had rainfall and the ground is saturated, then we recommend waiting until the ground has dried some so that you can evenly apply the insecticide and water it accordingly. If the ground is already soaked, then the soil won't be able to absorb anymore water and the active ingredient will break down without reaching the target pests. Please see our Grub Turf Guide for more tips on treating this pest.
Answer last updated on: 10/04/2017