When should grub control be applied in Illinois?

July
Lawns can withstand a grub population of up to 12 grubs per square foot before suffering any damage, although lower populations may attract skunks and raccoons. At higher populations, chemical treatments are usually warranted and are generally applied in early July.

What month is best for grub control?

It is often best to put down grub preventers from April through mid-July when grubs are ready to hatch. If you want to stop grub damage right away, the best time to apply a grub killer to your lawn is when you first see signs of damage.

Is it too late to put grub control down?

Available preventive products. Apply between April 1 and May 30 (no later than July 15) for best results. Apply between June 1 and July 15 for best results. Apply between June 1 and July 15 for best results.

What time of year should you apply grub control?

The key to controlling grubs is to kill them before they hatch and begin to cause damage to your lawn. In spring or early summer, apply a preventative grub control product, such as Scotts® GrubEx®1 to your lawn, following label directions. This is especially important if you’ve had problems with grubs in the past.

Which Grub Killer is best?

BEST OVERALL: BioAdvanced Granules 700745S 24 Hour Grub Killer.

  • BEST BANG FOR THE BUCK: Scotts GrubEX1.
  • BEST PREVENTATIVE: St.
  • BEST ECO-FRIENDLY: Bug Sales 50 Million Live Beneficial Nematodes.
  • BEST READY-TO-SPRAY: Bayer Crop Science 700280B Complete Insect Killer.
  • BEST FAST-ACTING: Ortho BugClear Lawn Insect Killer.

    • Can I apply GrubEX and fertilizer at the same time?

    Using GrubEx with Fertilizer The site gives no recommendation for mixing straight fertilizer and GrubEx, so it may be wisest to apply one product at a time. Fertilizers mixed with other products such as crabgrass control may be applied two weeks before or two weeks after using GrubEx.

    Should I apply GrubEX before rain?

    Should I Apply GrubEX Before Rain? Applying GrubEX before heavy rain is the only way to skip the watering step altogether. After it rains, make sure that you don’t see any remaining granules poking up through the grass or sitting on top of it.

    Do you need grub control every year?

    Grub control measures need to be taken on annual basis to work consistently. Skipping a year may be fine, but if any beetles have laid their eggs in your lawn’s soil over the course of that last year, you can be looking at a seriously damaged lawn by mid-fall.

    Can I apply fertilizer and grub control at the same time?

    According to the Scotts website, only straight fertilizer, with no other ingredients such as pre-emergent herbicides or other pesticides, may be applied at the same time as GrubEx. The site gives no recommendation for mixing straight fertilizer and GrubEx, so it may be wisest to apply one product at a time.

    Can you apply too much GrubEX?

    Applying too much can hurt the environment and using too little may not control the grubs in your lawn. Although Dylox claims it kills grubs within one to three days if applied properly, you may still notice grub activity within that time or shortly after. Animals may also continue digging for the insects.

    Is liquid or granular grub control better?

    The best grub killer acts slowly, but an active infestation requires fast action before damaging the lawn. Liquids deliver quick results, but granules may be more convenient because they are easy to spread.

    Will grub damaged lawn grow back?

    Grub counts from six to 10 or more per square foot can damage and kill grass. Before you repair your lawn, treat any grub infestation using beneficial nematodes or pesticides allowed in your area. It is best to repair your grub-damaged lawn in the fall or early spring to restore it to its green glory.