Merit Insecticide Granules

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5 out of 5 stars Rating: 4.8

39 Reviews | 64 Q&A

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Merit Insecticide Granules bag (30 lbs)

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Merit Insecticide Granules
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Merit Granular (by Bayer) is the longest lasting broad-spectrum grub control product on the market. Both curative and preventative, Merit Granules are effectivene on virtually every species of turf and ornamental pests. Merit even improves the quality of your turf. Merit 0.5 G is for broadcast application on and around turfgrass, ornamentals, trees, shrubs, flowers, groundcovers, and in and around commercial or residential buildings. Apply Merit 0.5 G uniformly over area being treated with normally used granular application equipment. Both drop-type and rotary-type spreaders may be used. Avoid using a spreader which would apply the product in narrow bands. For optimum control, product application should be followed by mechanical incorporation, irrigation, or rainfall, to help move the active ingredient into the soil.




Merit Granular (by Bayer) is the longest lasting broad-spectrum grub control product on the market. Both curative and preventative, Merit Granules holds a ten-year record of 90% effectiveness on virtually every species of turf and ornamental pests. Merit even improves the quality of your turf. Merit 0.5 G is for broadcast application on and around turfgrass, ornamentals, trees, shrubs, flowers, groundcovers, and in and around commercial or residential buildings. Apply Merit 0.5 G uniformly over area being treated with normally used granular application equipment. Both drop-type and rotary-type spreaders may be used. Avoid using a spreader which would apply the product in narrow bands. For optimum control, product application should be followed by mechanical incorporation, irrigation, or rainfall, to help move the active ingredient into the soil.

Tips for Use

MERIT is most effective when applied prior to, or just after, egg lay. In most cases, adult emergence occurs in early summer, often after significant rainfall or irrigation, followed by mating and egg laying. This usually continues for four to six weeks. Under normal circumstances, Merit will provide residual white grub control for four months or longer in turf.

Rating Snapshot

5 stars   36
4 stars   1
3 stars   1
2 stars   0
1 star   1

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Average Customer Rating
5 out of 5 stars (39)

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Most Helpful Customer Reviews
  • 43 of 43 people found this review helpful:

    5 of 5 stars  Grub control that works
    By Jim in Chelsea, AL on 04/04/2011
    Verified Purchase

    I have spent hundreds of dollars on different grub control products each year with the same result: grubs. Last year I discovered the 0.5 G Merit and thought that the extra strength might get it done. After years of frustration, this product worked as advertised.

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  • 26 of 26 people found this review helpful:

    5 of 5 stars  White grubs and chinch bugs
    By Clarence in Hernando Beach, Florida on 07/03/2011
    Verified Purchase

    I have used this product now for several years and find that it is the only way to control my problem bugs. "Do My own Pest Control" has been a Godsend for me. Im able to afford to continue treating with Merit 0.5 granules and shipping was free. Im so happy I found "Do My own Pest Control". I plan on doing business with you for many years to come. Thanks Docmoss

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  • 23 of 23 people found this review helpful:

    5 of 5 stars  This stuff works
    By Doug in Huntington Beach CA on 09/09/2012
    Verified Purchase

    I've been fighting with white grubs destroying my marathon 2 lawn for several years and had tried several products before, but they barely slowed down the spread. After one application of the Merit Granules the spread of the dead areas has ceased and visible recovery has begun. If you have white grubs, this stuff works.

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  • 19 of 21 people found this review helpful:

    5 of 5 stars  best product ever
    By David in pembroke pines,fl. on 09/18/2010
    Verified Purchase

    last year i awoke to find my yard over run by crows. During the day i would run outside and chase them away but they would return within the hour. The crows were destorying my lawn. So i called a professional lawn service and they promise to treat and end the problem. The day after the lawn was sprayed the crows continued tearing up my lawn. Even after a month later. At that point i searched the internet and found a product called" crowbegone". A cd with strange bird calls but after a month of use it to was a failure. The crows had won so i thought. Thats when i came across your wed site and purchase Merit G. In two words "It Works ". After chasing away the crows i applied Merit G and watered it in real good that evening. Within the first week i observed fewer crows on my lawn. By the second week the crows would land on the lawn and walk around looking for their grub meal but the kitchen was closed. After a month only one or two crows would check out the lawn and then walk away. Problem solved. Now my lawn is beautiful again. THANKS.

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  • 18 of 34 people found this review helpful:

    5 of 5 stars  Recommended by MD Agriculture Exten
    By Mark on 09/19/2007

    Merit Granules was recommended by the Maryland Agriculture Extension. I have not tried it yet, but this recommendation speaks for itself.

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Most Recent Customer Reviews
  • 5 of 5 stars  Dollars in your pocket.
    By Elwin in Nampa, Idaho on 09/10/2016

    If you are looking to have the best products and save some bucks...DoMyOwnPestControl is the place.

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  • 5 of 5 stars  Merit Insecticide Granules
    By Kmcd in VA on 08/19/2016

    This product is great. Since I started using my mole and vole problem has disappeared. However, I was disappointed to find that this bag was delivered with a large hole that someone attempted to seal with tape which did not hold up during the mailing process. I would have returned it but was short on time and needed to spread the granules quickly.

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  • 5 of 5 stars  MERIT controls Hemlock Wooley Adelgids
    By Jim in Franklin, NC on 07/17/2016

    When the Wooley Adelgid arrived in our area and started killing our beautiful hemlocks, we found that treatment with MERIT was extremely effective in protecting our trees. Although the trees in our woodland were too numerous to treat them all, those we treated survived, and those we weren't able to treat did not. We'll always be grateful for the trees we were able to save, and for the MERIT that made it possible.

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  • 5 of 5 stars  grubs
    By Na in pa on 06/24/2016

    Fast shipping, great company, just spread the Merit, hope it works. 5 stars for nice website, called and spoke to a nice lady who helped me get what I needed, and the shipping was fast.

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  • 5 of 5 stars  Merit Insecticide Granules
    By Bill in Sparta, NJ on 06/14/2016

    Wish I would have know about this product years ago. It has protected my remaining Hemlocks. Easy to use and fast results.

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  • 4 of 5 stars  Best price
    By Ronald in Boise on 05/22/2016

    I would have rated five stars except that communication about shipping is weak. Best price by far and the product was shipped fast and received within a week.

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  • 5 of 5 stars  Merit Insecticide Granules
    By Bill in Sparta, NJ 07871 on 05/21/2016

    Your best defense against Wooly Adelgids that attack Hemlock Trees.

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  • 5 of 5 stars  bugs
    By Sean in pa on 05/16/2016

    Fast shipping, DoMyOwnPestControl were very helpful in getting the correct product for my lawn. I was going to order something different and the lady I spoke to set me straight and told me I only needed Merit, and to spread in June. Great company will do business with them again.

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  • 4 of 4 people found this review helpful:

    5 of 5 stars  Amazing Results
    By John in Fort Lauderdale, Fl. on 04/09/2016

    This is my third year using Merit Insecticide and it never fails to amaze me. My biggest problem are grubs. I tried using the cheaper insecticides and it nearly cost me a lawn. I set my spreader at the called for calibration using Merit and in a couple weeks I get great results! After a couple of months I apply it again. Finally , if you want the best price and super fast shipping; Do my own pest control.com beats every one including Amazon prime for cost and speedy delivery.

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  • 2 of 2 people found this review helpful:

    5 of 5 stars  Merit is great for Wooly Adelgids!
    By Jim in Gainesville, GA on 02/22/2016

    Hemlock is our favorite tree in the forest and on our farm. When the Wooly Adelgids moved into NC, we were devasted at the loss of these beautiful trees. We were quick to investigate remedial measures for our woodlands, including the possible use of PT beatles, and concluded that Merit was our best bet. Our quick response, coupled with the outstanding qualities of Merit, saved every tree we treated. We are grateful for Merit, and will never be without it!

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Most Helpful Q&A's

05/22/2012 Patrick from Dallas,tx

QHow many square feet will one 30lb bag of Merit Granules cover?

AThe 30lb bag of Merit Granules will cover between 16,000 sq ft - 21,400 sq ft depending on the usage rate needed. Please refer to the Merit Granules product label for complete usage instructions.

45 of 46 people found this answer helpful.
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05/15/2011 Tom

QHow safe is Merit Granules around pets?
8000 sq ft yard, when will it be safe for my 2 small dogs to go back on the lawn after I treat it?

AYour pets should be out of the yard while you are applying the Merit Granules and while you are watering them in. Your pets can return to the area after the surface of the grass is dry, usually after about 5-6 hours.

34 of 34 people found this answer helpful.
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09/01/2010 John

QWhat should I use for grubs on my lawn?
Merit granular, Bayer or your suggestion? I am ready to attack!

AMerit Granule is actually manufactured by Bayer and is always our top recommendation for grub control. For best results, make application prior to egg hatch. To find out when grub egg hatch normally occurs in your area you should contact your local cooperative extension office.

21 of 22 people found this answer helpful.
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03/13/2013 Paul from Fall Church, Va

QWhat happens if you apply Merit more than once a year?
i keep seeing that you should only apply it once a year. But what does it do if it is applied twice? I can't find any information on repercussions. does it harm the soil or the grass?

AYou are able to apply Merit more than once a year but you cannot apply more than 80lbs of Merit per acre per year. While it will not harm the soil or the grass the EPA does limit how much product you are able to use in a given area per year.

19 of 20 people found this answer helpful.
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03/13/2013 Paul from Fall Church, Va

QWhen you apply the Merit granules, does the chemical stay in the soil and protect grass planted later on?
when you apply the Merit granules for example in late June, does the chemical stay in the soil such that if you plant grass seed a couple months later in Sept, will the new grass have the systemic protection as well? or would the new grass be unprotected?

AThe Merit that is applied will be in the soil for some time but it is trans-located through the plants that are in currently in place. Newly planted grass should be retreated.

13 of 13 people found this answer helpful.
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Most Recent Customer Questions

05/25/2016 Gary from Paw Paw

QWhen do I apply Merit 0.5 G for grubs in turfgrass in southwestern Michigan?

A

Since Merit Insecticide Granules is a systemic insecticide, you want to apply it several weeks before egg match of the target pest. Usually this application needs to be made in late Spring, usually†sometime between May and late June. We recommend contacting your local Cooperative Extension for the best recommendation on application timing for your target pest in your area.

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05/24/2016 Lester

QWhen is the best time to apply Merit Insecticide Granules for control of mole crickets in west central Ohio?
Is rainfall or watering necessary within 24 hours?

A

Since Merit Insecticide Granules is a systemic insecticide that translocates through the plant, it is best applied before Spring/Summer egg hatch, before we see adults and/or damage from the target pest, in this case before we see adult mole crickets. The granules do need to be activated with irrigation or rainfall of about 0.5 inches. For the most exact recommendation as to when to apply the product, we recommend contacting your local Cooperative Extension office.

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05/17/2016 Vernita from Dallas, Tx

QWhen is the best time to apply Merit Insecticide Granules in Dallas, TX?
I've seen grub worms in the last few years.

A

We recommend contacting your local cooperative extension office to ask about exact insecticide timing for the pests in your region. These offices are an invaluable resource when dealing with pests and most have a master gardener and an entomologist on staff to answer pest insect questions.

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05/16/2016 Jeff from Rogers, Ar

QCan Merit Insecticide Granules be used to treat scale on shrubs?
I have scale on some large holly trees. I heard the chemical in Merit would treat for them. Looking for something I can pour on the ground above the roots. (Systemic)

A

Merit 75 WP - 2 oz. jar†will treat scale insects. It would be better to use Merit 75 versus the granule.†You can apply this product as a soil injection or soil drench around the base, for the root system to soak up and translocate up. Please refer to the†Merit 75 Wp product page,†as we have listed the applications to trees and shurbs. Also, be sure to refer to the product label for application as well.†

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05/11/2016 Sheri from Sebastopol, Ca

QHow far away should I apply Merit Granules from my fruit trees?
My lawn has 3 fruit trees planted in it and a major grub problem.

A

Merit Granules should be at least 10 feet outside of the drip line of the tree. We would recommend using Milky Spore Powder instead. This product can be used around edibles and will kill and prevent grubs for up to 10 years. It only needs to be applied once.

Please check out our Grub Guide for tips on how to kill and prevent grubs. There is a lot of useful information!

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02/18/2016 Hugh from Sacramento, Ca

QWill applying Merit (Bayer Advanced Tree And Shrub) to my Crape Myrtle affect nearby herbs (mint, oregano)?

A

Neither Merit Granules or Bayer Advanced Tree and Shrub Granules are labeled for use around edibles. They are both safe for use around ornamentals and trees, such as Crepe Myrtles. It is recommend that you use this product outside of the dripline of the herbs and/or edibles.

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07/28/2015 Sandy from Melbourne, Florida

QIs it safe to use Merit Granules on St. Augustine grass?

A

Yes, Merit Granules can be used in St. Augustine grass and around ornamentals. Please refer to the product label for application ratios.

1 of 1 people found this answer helpful.
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07/24/2015 John from Copperas Cove, Tx

QWill Merit Granules kill fleas in your yard full of weeds?

A

Merit Granules are not labeled to kill fleas according to the product label. If you have any questions about outdoor flea control, please read over our Outdoor Flea Guide 

1 of 1 people found this answer helpful.
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07/14/2015 Dean from Kutztown, Pa

QCan Bayer Merit 0.5 Granules insecticide be used in a vegetable garden?

A

Merit Granules is not labled to be used in vegetable gardens. Depending on what your are treating for, we have a number of products on our Vegetable Garden Pest Control page that can be used on edibles. If you can determine exactly which pest you are treating for, we can recommend the best product available for your situation.

2 of 2 people found this answer helpful.
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07/06/2015 Gerry from Columbus Oh

QWhat is the Speedygreen 3000 calibration for Merit granules?
anyone use this Scotts spreader and know the appropriate setting by chance?

A

We do not know the settin of that spreader for application Merit granules.  However, almost all fertilizers, herbicides, insecticides, etc have treatments in amounts of so much product per 1000 square feet.  So if you can figure out what your walking speed is then you know anytime you apply any product that calls for so much of it per 1000 square feet, you always set your spreader on this setting.  You can calibrate this by marking off a 1000 square foot (10 x 100) area and placing 1.4 pounds of any type of product of similar granule size, or of the merit itself in the spreader.  Start with a low setting and start walking your marked off area at a normal pace.  You can adjust as you go and find the basic setting for you to apply the product over a 1000 square feet. The 60 pounds per acre equates to 1.4 pounds per 1000 square feet.  Or, you can call Bayer, the manufacturer, and they may be able to tell you what setting you should have it on.  You can reach them at (800) 331-2867.

1 of 1 people found this answer helpful.
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