When should I treat for grub worms?

Asked By: Jenny Barrateiro | Last Updated: 5th March, 2020
Category: medical health foot health
4.1/5 (35 Views . 28 Votes)
The best time for treating grub worms is in late summer or early fall while the grub worms are still small and close to the surface. Grub worms are less susceptible to treatment in the spring, as they are too large and no longer feeding. For this reason, insecticides are less effective.

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Similarly one may ask, what is the best time to treat for grubs?

Grubs burrow deep into the soil and rest through the winter. Some move as much as 12 inches below the surface. Come March, lawns already under attack by grubs are best treated in early spring or fall. Apply Bayer Advanced 24 Hour Grub Killer Plus for fast results.

Beside above, are grub worms bad? The answer to whether grub worms will hurt your garden is a resounding yes. These annoying pests feed on the roots of plants and turfgrass, which can cause severe and irreversible damage to the vegetation. Once you have taken the proper actions to get rid of the grubs, implement preventive measures to keep them at bay.

Then, can I treat for grubs in October?

2) CURATIVE insecticides These two insecticides are the only options if high numbers of grubs are found in the fall and in spring before early May. Our research indicates they will kill 20-80 percent of grubs when applied in September or 20-55 percent when applied in late October.

What is the best product to kill grubs?

TOP-8 Grub Worm Killers

  1. Scotts GrubEx, 5,000-sq ft (Grub Killer & Preventer) Net Wt. 14.35lb.
  2. Bayer Advanced 700740S 24 Hour Grub Killer Plus, Granules & Bayer Grub Control, Spray.
  3. Sevin Ready-To-Use 5% Dust 3 Pack 1 lb each.
  4. Sevin Concentrate Pest Control, 1-Gallon.

39 Related Question Answers Found

Do I really need grub control?

The short answer is that you do not have to treat your lawn every year for grub worms, unless your lawn shows damage from them. Most people did not water their lawns, especially in this area where there were water restrictions. Adult grub worms (June Bugs) like to lay their eggs in moist soil of lush lawns.

What time of year do you put down GrubEx?

In the summer they lay eggs and in the mid-summer, grubs hatch and start feeding themselves through the roots of the turf. Hence, the best time to apply Grubex is between spring and early summer. It is also usually between late May and late July.

How do you know if you have grubs?

To check, lift a piece of your turf. If Grubs are the culprit, the dead patch will roll up like a carpet, or you'll be able to pull up the grass and see that it has no roots. Irregularly-shaped dead patches appear in your well-irrigated lawn in late summer or early fall.

How do you get rid of grubs in soil?

Answer 1: Earth-friendly beneficial nematodes seek out and kill grubs and other soil-inhabiting insects. They come on a sponge (invisible to naked eye) that you soak in water, put in a sprayer and spray your dirt or lawn. They will multiply over time and continue to kill grubs.

How long do grub worms live?

June beetles have a three-year life cycle, while other scarab beetles live for 12 months.

Why do I have grubs in my lawn?

Lawn grubs have soft bodies with legs near the head. They feed on grassroots (and organic matter in the soil), causing sections of grass in the lawn to die. Grubs eventually turn into adult beetles and emerge from soil to mate and lay eggs, which hatch into more grubs.

Can I put down GrubEx and fertilizer at the same time?

Using GrubEx with Fertilizer
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.

Can you put GrubEx down on wet grass?

Since the soils tend to be very wet this time of year and since the grubs will not be laying their eggs until summer, I asked our researchers when they apply GrubEx to their lawns. Their answer: May.

What does a Japanese beetle grub look like?

C-shaped, white to cream-colored grubs with a distinct tan-colored head. Legs are easy to see. From 1/8 inch up to about one inch long. Japanese beetle grubs look like other white grubs and can only be positively distinguished by examining the pattern of spines and hairs on the underside of the tip of the abdomen.

Does lime kill grubs?

Lime will not kill grubs, unless you smother them with it.

How do I fix grub damage on my lawn?

It is best to repair your grub-damaged lawn in the fall or early spring to restore it to its green glory.
  1. Remove dead grass with a rake.
  2. Aerate your lawn.
  3. Choose a grass seed that matches your current lawn.
  4. Irrigate the entire lawn to germinate the grass seed and strengthen existing grass.

Will Sevin dust kill grubs?

Late summer white grub chemical controls
Products containing trichlorfon (Dylox) and carbaryl (Sevin) are faster acting insecticides and will kill grubs in 3 — 5 days.

What does grub control do?

Controlling Grubs in the Lawn
Beetles, like Japanese and chafer beetles, emerge in early summer, feed on plants in the garden, and lay their eggs in the soil in the lawn. The key to controlling grubs is to kill them before they hatch and begin to cause damage to your lawn.

What do you do with dead Japanese beetles?

Make sure once you pick them up, you place them in a bucket of water-soap solution like discussed before. This will kill the beetles, and once they're dead, you can pour the solution over the your lawn. Predators like birds and fowls will then come and eat them, potentially getting some leftover alive beetles, too.

How do you apply Scotts GrubEx?

The Scotts Company recommends treating each 1,000 square feet of lawn with 2.87 pounds of GrubEx once yearly. Using a drop or rotary spreader helps broadcast the granular pesticide evenly. After application, water your lawn to a depth of 1/2 inch, which is typically a 20- to 30-minute watering.