Best Grub Killer for 2020 [Our Reviews and Comparisons]

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Maintaining a lawn can be quite a daunting task. In addition to constantly fertilizing and watering it, you also have to be aware of tiny organisms that can cause long-lasting damage to them. Under such conditions, the best thing to do would be to purchase a good grub killer.

Nowadays there are effective grub killer products online that not only take care of the grubs and other insects but also ensure that your lawn and the surrounding plants do not get affected or spoilt. Therefore you need to check the ingredients before you invest in any product. You must assess your land and plants, check the coverage area, weather conditions, and only then decide on a particular product. Listed below are some of the top useful grub killer products.

Best Grub Killer Comparison Table

Product Features Latest Price
1. Bonide Annual Grub Killer
  • Very effective
  • Affordable
  • Covers wide area
  • Keeps wildlife away
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2. Spectracide Triazicide Insect Killer
  • Effective
  • Affordable
  • Wide coverage
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3. Bonide Insect/Grub Killer (Dura Turf)
  • Very effective
  • Easy to Use
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4. Hi-Yield Grub Free Zone III

  • Very effective
  • Kills various species
  • Active ingredient
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Our Best Grub Killer Reviews and Comparisons

1. Bonide Annual Grub Killer

Product Highlights

The Bonide Annual Grub Killer is the perfect product for long term usage. Once you apply it kills all the grubs for the entire season while also preventing its hatching. Additionally, it is known to destroy mole crickets, beetles, European Crane Fly eggs, and other killing insects.

Be it spring, summer, or autumn you can apply this in any season and be worry-free. For those fed up with repeated pest control options, this is a welcome change. You can check the status of your lawn or plants once in a while and use the product again if required.

Features

Bonide Annual Grub Beater can cover up to 5,000 sq ft. It is a systemic insecticide that destroys grub worms with Imidacloprid 0.5 percent. It also destroys grass killing insects such as European larvae and mole crickets. Compare the annual Grub Beater of Merit G with the same active ingredient. The annual Grub Beater can be used on natural grass, gardens, and ornamentals. This annual grub killer can be used in spring through late summer and will last for a long time during the season.

However, the optimal time to make use of the active ingredient in this formula, which has ample residual activity, precedes the egg-laying activity of the target pests. High levels of control can be obtained when applications are rendered prior to or during the egg-laying period.

Just a one-time program kills grubs all season long. It provides seasonal grub protection for almost all turf-degrading grub species. If you want better results then you should wait till mid-August.
The active ingredient is imidacloprid which is the same as Merit G. It stops eating automatically and kills easily.

What We Like About Scotts Turf Builder Starter Food for New Grass

This product is quite effective in killing all kinds of grubs all season long increasing longevity.

What We Don’t Like About Scotts Turf Builder Starter Food for New Grass

Some customers have claimed that the rate of the coverage mentioned on the package is different from reality as in the coverage is lesser.

PROS

  • Very effective
  • Affordable
  • Covers wide area
  • Keeps wildlife away

CONS

  • Ineffective on certain insects

2. Spectracide Triazicide Insect Killer

Product Highlights

In the middle of summer, we often find brown spots on our lawns. If it is dark or mottled, browning can be a symptom of lawn pests. To try, select a spot in the infected area of your lawn and stretch the grass blades so that the surface roots are clear – this will give you a clearer view of the turf-feeding bugs. If the browning is fairly even around the whole yard, it’s most likely caused by the hot weather.

A tough lawn grub can do serious harm to your lawn and landscape. Whitish and C-shaped, grubs feed on grass roots, leaving lawns unable to extract the requisite water and nutrients from the soil. Grubs are very active throughout the summer – adult females typically lay their eggs in the soil throughout July, and the newly hatched grubs begin to feed on turf roots at the beginning of August, allowing vegetation to die.

Whether you’re thinking about the host of insects out there hunting for the perfect lawn or garden to enjoy. Spectracide Triazicide Insect Killer drugs are aimed for wide-spectrum management of grubs or aquatic insects, or your management of rodents in the grass, greenhouse, or landscape.

The power is in your hands to hold your landscape in line. You can now use the Spectracide lawn and garden grub killer to make your lawn free from grubs. This easy-to-use, fast-acting mosquito, lawn disease, and weed control approach let you conquer lawn and landscape pests with unparalleled pest-punishing efficiency.

Features

The Spectracide Triazicide Insect Killer For Lawns and habitat’s focus is mainly for outdoor use and protects turf, vegetables, fruit plants, trees, bushes, and shrubs with a fast-acting solution that regulates insects above and below the ground.

It manages to kill about 260 types of insects, including grubs, ants, fleas, European crane fly, Japanese beetles, deer ticks besides other insects.
Many home-sides are non-staining based on age and cleanliness. This concentrated mixture is a dilutable concentrate for mixing with water. You can use a QuickFlip ready-to-spray concentrate that is applied directly to your garden hose.

What We Like About Spectracide Triazicide Insect Killer

When you use this product you can actually see the insects crawling out to die in addition to the grubs.

What We Don’t Like About Spectracide Triazicide Insect Killer

This product does not work on ants and certain other bugs as claimed by some

PROS

  • Effective
  • Affordable
  • Wide coverage

CONS

  • Ineffective under certain conditions

3. Bonide Insect/Grub Killer (Dura Turf)

Product Highlights

While you are deciding on which effective products to use for grubs that have infested your lovely lawns you may want o take a look at Bonide Insect/Grub Killer. One of the top products in demand at the market this application can control insects that exist above as well as below the soil surface.

Be it any weather conditions it effectively destroys mole crickets, ticks, weevils, fleas, chinch bugs, cranefly, billbugs, cutworms, millipedes, and most importantly grubs that are often difficult to completely destroy.

Features

This product comes in the form of granules making it easy to use with a spreader. It is a two-in-one product that destroys grabs on turf and the lawn destroying insects in the ground.

It has an active ingredient called Imidacloprid that combines the systemic action with fast performance since it comes with insect control of Lambda Cyhalothrin. If you are concerned about the coverage area then you can rest assured s it can cover up to 15,000 square feet

What We Like About Bonide Insect & Grub Control (DuraTurf)

This product is very effective and kills other insects too.

What We Don’t Like About Bonide Insect & Grub Control (DuraTurf)

In some cases, it has failed to kill certain other insects that have returned to create chaos.

PROS

  • Very effective
  • Easy to Use

CONS

  • Ineffective under certain conditions

4. Hi-Yield Grub Free Zone III

Product Highlights

For the novices and the experienced the Hi-Yield Grub Free Zone II is one of the most popular products in the market due to its highly effective insecticide properties that kill white grubs and other insects.

The Hi-Yield Grub Free Zone II manages pests such as chafers, mole crickets, Japanese beetle, Asian garden beetle, and oriental beetle. It defends turfgrasses from mole crickets and grubs.

Features

This product is highly effective in terms of formula as it effectively controls regular garden pests such as the Asiatic garden beetle, chafers, Japanese beetle, mole crickets, and oriental beetle in addition to the eggs or the grubs.

It contains imidacloprid and its active ingredient that robustly aims and controls termites, fleas, and any other types of soil insects. It especially controls pests while also protecting turfgrasses from any further damage against creatures of the underground such as mole crickets or grubs.

The most effective way to make this product work is to apply it before said creatures hatch from their eggs. In fact, it is proven to show that it can easily get rid of or kill newly hatched insects as a result of this formula

It is therefore ideal for usage on lawns, or landscape plantings with a lot of trees, ground covers, flowers, evergreens, and shrubs. If however, you do water the soil abundantly. Water the soil after application will increase effectiveness.

The most ideal time to apply this product in mid – July a time when the eggs usually start hatching. Applying it within a period of six weeks until when the egg hatches will yield better results. If you do wait for 4- 6 weeks till you apply a weed killer or fertilizer then you will not disrupt it from working in a thatch layer. The active ingredient in Hi-Yield Grub Killer is Imidacloprid which constitutes around 0.5%.

If you want effective control then it can be attained when you apply it before or during the egg-laying period. The time to apply can be based on the results during the past monitoring of the site, in addition to the previous records, experiences, current season adult trapping, or other methods. With proper irrigation after application before egg hatch will bring the best results.

If in any case, you want to maximize the output then irrigating the land 24 hours before will help move the active ingredient through the thatch. The same goes for rainfall. May not apply when the turfgrass fields are waterlogged or the soil is saturated with water. Adequate delivery of the active component can not be accomplished if these conditions occur.

The region to be handled must be capable of allowing the vertical intrusion of runoff or drainage water. Stop mowing grass or lawn field before adequate irrigation or rainfall has happened to ensure uniformity.

Do not use more than 80 lb (0.4 lb of the active ingredient) per acre a year. Do not apply this substance to Basswood or Linden or Tilia species by any form of use. Hi-Yield Grub Free Zone III is a functional component that is passed upwards throughout the plant system.

For better monitoring, pursue applications with sufficient mechanical absorption, irrigation, or rainfall to transfer the active ingredient to the soil. Irrigation or rainfall may occur within 24 hours of operation. Apply to achieve optimal protection due to insect infestation.

Until deployment, eliminate black plastic or other weed barrier substance that does not permit water permeability. After use, stop leakage or pudding of irrigation water. Stop the application of Hi-Yield Grub Free Zone III to areas where the water is logged or soaked, which would not allow the root zone of the plant to be penetrated.

What We Like About Hi-Yield Grub Free Zone III

If a garden is really infested with other insects besides grub killers then this is very effective in eradicating them.

What We Don’t Like About Hi-Yield Grub Free Zone III

This product cannot be used next to fruit trees as it may destroy plant roots.

PROS

  • Very effective
  • Kills various species
  • Active ingredient

CONS

  • Requires rainfall or irrigation only

Final Verdict

The most effective product out the list is the Spectracide Triazicide Insect Killer. It effectively digs out every last piece of grub and ensures that there is also prevention. This product is perfect for homeowners as well as agriculturalists who own large tracts of land with different types of vegetation.

It is a water-soluble concentrate that can be used with a spray. It can also be connected to a hose in case you want to spray over a wide coverage area. It kills the grubs from the time the eggs are laid and eradicates them layer by layer by completely getting absorbed in the soil.

General Information:

All About Grubs

Grubs are small, white, C-shaped larvae of Japanese beetles, June beetles, and chafers (to name a few). They live just below the grass root system and feed on grassroots and plants.

Grubs can do serious harm as, after feeding on grassroots, they transform into pupae, which hatch into beetles. These beetles feed on flowers as well as plants. Besides, they lay their eggs on the lawn in the summers. When Fall arrives, those eggs then hatch into grubs, and the entire vicious cycle starts again when the grubs emerge in the coming season.

There are a few signs that you might have a grub problem with that. If your lawn has some unusual patches that look as if the lawn is wilting or is covered in brown turf especially when the weather does not indicate any hotness or dryness, then you can be sure it is the grubs.

Any areas of the lawn that is dug up indicate unwelcomed visitors searching for grubs. Because grubs damage the lawn’s root system, you can pick up the turf like a piece of carpet to check for grubs (use gloves if you try this!)

Little white “C’s” found in the dirt, also indicates grubs. Find more than five within a square foot of turf, your grub problem has escalated and treatment must be immediate.

Grub Killers

When you know that you have grubs, the main thing to work on is removing the eggs that have been laid in the lawn so they can hatch and burrow into the dirt for a long winter nap. Applying grub therapy between late May and mid-July is a successful option.

There are two compounds, carbaryl, and trichlorfon, which are considered curative. They are short-lived substances that disrupt all phases of grub life. These two insecticides are the only choice if a large number of grubs are found in the fall and in the spring before the beginning of May. 20-80 percent of grubs will be eliminated when used in September or 20-55 percent when applied at the end of October. Compared to preventive compounds they are not as effective in reducing grub numbers.

Think carefully if it would be better to postpone to apply a preventive action later. If it is appropriate to use a curative agent, ensure that the infested grass is watered and fertilized and that the field is remedied for protective use next summer or that the disease is likely to recur in the fall or the following season.

Buyers Guide:

Before you decide to go ahead and buy a Grub Killer, there are certain aspects to consider before you shell out your money on one. Below we have listed some points for you to look into.

Brands

The best brands that can cater to your grubs problem are BioAdvanced Grub and Insect Killers, Bonide Annual Grub Killer, Hi-Yield Grub Free Zone III, and Spectracide Triazicide Insect Killer to name a few. Most of these contain the active ingredient Imidacloprid which has proven to be quite effective in the killing of grubs and other insects.

Composition and Ingredients

When you decide to buy a grub killer, the first and most important thing you need to look out for is the composition or the ingredients. Some grub killers will come only with the active ingredient for fighting against beetles and others may only be just a controller. They may not kill them, however, they may in the future protect and prevent.

Trichlorfon and Carbaryl are the active ingredients (chemicals) that kill the grubs. They kill all sorts of bugs in any stage of life. Chlorantraniliprole is another active ingredient that is found in the well-known pesticide GrubEx.

The ingredients and compositions are usually written on the right side of the box, or the bottom. But we suggest, before you make the purchase, check the ingredients and their formulation. It should be worth the time and money you spend.

Product Amount

Using too much of the substance, or too little, can result in hyperactivity or hypoactivity. Although both practices are detrimental to your turf/lawn, using only the right quantity of product would definitely deliver the best results. So, how do you know that you have to use the right amount of the product?

Most of the time, the product label lists the amount applicable to a fixed area. For instance, 20 pounds per 10,000 square feet. Also, these labels tell you the side effects of using too much. So be sure to check all these points before considering any grub killer.

Grub Killer/Controller vs Insecticides

A grub killer and insecticide are two different things. So one thing that you need to make sure is that the problem is about grubs. If this happens to be the case, then don’t try to use any insecticide for that. The problem of grubs is a burning issue in most European countries such as the Upper and Lower Peninsula of Michigan. Henceforth, the distinction between a grub and a normal garden insect is important.

Grubs are usually larvae of the beetles that are more common in North America. These grubs do not kill the stem or any other visible part of the plant or crop, but they most often strike the turf or roots and make the survival of grass poor. Other insects on the other hand will damage the leaves, stem, and other parts of the plan as well.

Grub Controller vs Grub Killer

One of the most important things to know is the difference between a grub controller and a grub killer. If you are not aware of this, then let us tell you that a grub killer is something that you need to consider purchasing when you face the issue of grubs in your lawn. On the other hand, a grub controller/preventer can be used in the near future when you want to be protected from the grubs.

However, a grub controller definitely works better in every way than grub killers, but we can’t deny that a grub killer is a perfect remedy when your lawn is packed with those little beetle larvae.

Guidelines for Use

Ensure that you always read up on how to use the grub killer. There could be questions like should you water your lawn after an application? Well, with some products it is possible for you to water the lawn for best results after application; however, some may just have the opposite impact.

For instance, if the grub killer is granular or in powdered form, watering the area after use increases assimilation and it is easily absorbed. On the other hand, if the powder or granule is insoluble in water, certainly it would have a reverse effect.

Frequently Asked Questions ( FAQs)

    1. Are grub killers pet friendly?

Unfortunately, no! They’re not safe to use around pets and even children. It is recommended that they are kept away for around 24-48 hours after application.

    1. What is the best time of the year to use a grub killer?

Ideally, the preventive compound Chlorantraniliprole should be used during the months of April and May as this is when the grubs damage the turf. To kill grubs during Spring and Fall, make sure you use Carbaryl or Trichlorfon.

    1. Are all grub killers water soluble? Can water be sprinkled in the field after use?

Most grub killers are water-soluble, except for some like Scotts Grub Killer. So check the description of the product when you are making a purchase, you will find a detailed description of the product. Only if a product is water-soluble than you use water, else when buying one which is not, make sure you don’t sprinkle water.

    1. Can it be spread with bare hands?

Generally, it’s not advised to use your bare hands for such kind of products, but you can always use disposable gloves to do. After all, these products have chemicals, so it’s not advised.

    1. Do grub killers harm flowers and bushes?

The good news, grub killers don’t harm any flowers or bushes. They are solely made to kill grubs and nothing else.

    1. Can grub killers be used in vegetable farms?

Yes, grub killers can be used in vegetable farms, however, ensure that the product doesn’t reach the roots of edible crops.

    1. Will grass grow back after grubs are damaged?

If extensive root damaged has been caused by the larvae or lawn grubs, then the grass in your lawn may not able to grow back due to the lack of moisture and nutrients. At its worst, the grass will peel back from the surface as the roots would have been eaten away.

    1. How does grub damage look like in a lawn?

If grubs have been dwelling and eating away your lawn, then there will be irregular brown patches within the lawn.

Grubs can destroy your lawn or fields completely; therefore, it’s really essential you choose the best grub killer to get rid of those stubborn grubs. The moment you see those grubs destroying your beautiful lawn, take action immediately and use the best of the best product to do so.

We hope our list of products, buyer guide, and frequently asked questions will help you make the right choice according to your needs.

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