Ron from Luzerne Michigan writes
For grub control, except dung beetle, treat any time between late July and early October. For dung beetle grub control, apply in spring or early summer when damage is first noticed. For control of mole crickets, apply prior to or during the peak egg hatch period. For all other pests, you should do the application when pests are first noticed.
Answer last updated on: 10/19/2013