When a good rainstorm is forecast, you can use the grub control before the rain arrives. In that case, you’ll have to go that route. In hot, dry weather, the chemical in some grubicides will degrade. Leaving the chemical on your lawn without watering it in isn’t going to do anything.

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Does GrubEx need to be watered in immediately?

A 20- to 30-minute watering is typically required after applying the product to a depth of half an inch. GrubEx is safe for your family and pets because it is activated only after it has been watered in.

When should I apply GrubEx to my lawn?

In order to prevent eggs from maturing and hatching, apply GrubEx late in the spring and make sure it is still in the soil by midsummer. GrubEx works as a preventative. It can take up to four months for an application to be processed.

What is the best month to put down GrubEx?

To kill grubs as they grow, apply in the spring or early summer. For Japanese beetle and Armyworm control, use the Scotts® GrubEx®1 Season Long Grub Killer every year.

Should you water after applying grub control?

Research shows that immediately following the application of these insecticides, a 0.5-inch watering is necessary to get the best results. Carbaryl appears to be slightly more effective against European chafer grubs than trichlorfon, according to our research.

Can you apply insecticide to wet grass?

Yes, the Sevin Granules can be applied to wet grass.

How long does it take for GrubEx to work?

In between 60 and 90 days after being sprayed on the ground, GrubEx starts producing results. GrubEx, unlike Merit, needs to be distributed between mid-April and early June. GrubEx’s ability to control grubs in your lawn is reduced if this step is skipped.

Can you apply GrubEx and fertilizer at the same time?

There are no pre-emergent herbicides or other pesticides that can be applied at the same time as GrubEx according to the Scotts website. GrubEx and straight fertilizer are not recommended to be mixed, so it may be best to apply each product separately.

Will grass grow back after grub damage?

You’ll need to reseed any areas that have dead turf. Seeding and weeding are required in some areas. Slice-seeding, on the other hand, may be the best option in some cases. Regardless, they’re not returning on their own.

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