When are grubGONE! and beetleGONE! Applied? Exact application timing will depend on your location and climate, but in general: Optimal timing is late July or early August when beetle eggs are hatching and grubs start feeding (preventative treatment).
When should I use grub be gone?
If you want to stop grub damage immediately, the best time to apply grub killer insecticide in your lawn is as soon as you see signs of damage. This is usually any time between early spring to early August when the grub worms are most active eating and damaging grass in your lawn.
What is the best month to put down GrubEx?
Because GrubEx targets the larval stage of many insects, the best time to apply it is when the beetles burrow into lawns to lay their eggs -- in spring to early summer. When the eggs hatch, GrubEx kills the emerging larvae so they cannot develop into mature insects.