Merit 75 WP - 2 oz.

$35.75

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5 out of 5 stars Rating: 4.9

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Merit 75 WP - 2 oz. jar (2 oz)

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Merit 75 WP - 2 oz.

As a low cost alternative we recommend Adonis 2F which has the same active ingredient as Merit and treats the same insects.

Merit 75 WP is a broad-spectrum systematic wettable powder concentrate which can be used at very low rates and applied as a foliar spray, soil broadcast spray, soil injection or soil drench to control grubs, weevils, and other soil and turf inhabiting pests. Soil applications are taken up by plant, ornamental, and tree roots into twigs, stems, and foliage. Merit 75 WP includes detailed instructions for application to turfgrass, ornamentals, trees, shrubs, flowers, groundcovers, and in and around commercial or residential buildings. All applications recommend the use of a sprayer for application which will produce a uniform, coarse droplet spray when used at a low-pressure setting.




Merit 75 WP is a broad-spectrum systematic wettable powder concentrate which can be used at very low rates and applied as a foliar spray, soil broadcast spray, soil injection or soil drench to control grubs, weevils, and other soil and turf inhabiting pests. Soil applications are taken up by plant, ornamental, and tree roots into twigs, stems, and foliage. Merit 75 WP includes detailed instructions for application to turfgrass, ornamentals, trees, shrubs, flowers, groundcovers, and in and around commercial or residential buildings. All applications recommend the use of a sprayer for application which will produce a uniform, coarse droplet spray when used at a low-pressure setting.

Merit can be applied as a root/soil drench. Insecticides applied to the soil are taken up by the roots and translocated throughout the tree or shrub. Root/soil drenches offer the advantage of requiring no special equipment to apply (other than a bucket or watering can). However, surface layers of organic matter, such as mulch or leaf litter, can bind the insecticide and reduce uptake. Before applying drenches, it is important to remove or pull back any mulch or dead leaves so the insecticide solution is poured directly on the mineral soil. It is also important to keep the soil around the tree or shrub moist for the next 7-10 days after applications to encourage uptake.

TREES:

To calculate how much Merit you need to purchase, you will need to measure the diameter of the tree trunk.  You will need 0.7-1.4 level teaspoons of Merit per inch of diameter. The highest rate should be used for all boring insects. The amount of water that is used will vary depending on soil conditions and volumes that are easy for applicators to use. The minimum amount of water that should be used is 1 pint per inch of tree diameter but you may use 1 quart -1 gallon of water per inch as well. Denser soils such as clay do not accept water as readily, so the lower volume of water is suggested.  Since sandy soils can accept more water, using the higher volume of water is preferred.

* Example: If a tree has Emerald Ash Borers the highest usage rate of Merit would need to be used (1.4 level teaspoons per inch of diameter).

If the trees diameter is 11.5 inches you would need about 16 teaspoons (5.5 tablespoons) of Merit. If the tree were in sandy soil you could dilute the Merit with up to a gallon of water per inch of trunk diameter.

In this case you would dilute 16 teaspoons of Merit into about 11.5 gallons of water.

Note: Water simply acts as a carrier and it is important that even distribution of the product is achieved. Thus, more water may be used if the applicator feels runoff will not occur and proper penetration of the root zone is achieved.

SHRUBS:

You will need to use 0.7-1.4 level teaspoons of Merit per foot of shrub height. The amount of water that is used will vary depending on soil conditions and volumes that are easy for applicators to use. The minimum amount of water that should be used is 1 pint per foot of shrub height but you may use 1 quart -1 gallon of water per foot of height as well. Denser soils such as clay do not accept water as readily, so the lower volume of water is suggested.  Since sandy soils can accept more water, using the higher volume of water is preferred.

* Example: If shrubs had white fly you would use the mid- usage rate of Merit (about 1.05 teaspoons per foot of shrub height)

If the shrub height is about 3 feet then you would need 3.15 teaspoons of Merit. If the shrub is located in dense clay you would use the lower volume of water, 1 pint per foot of shrub height.

In this case you would dilute 3.15 teaspoons of Merit in 3 pints of water.

Note: Water simply acts as a carrier and it is important that even distribution of the product is achieved. Thus, more water may be used if the applicator feels runoff will not occur and proper penetration of the root zone is achieved.

Tip: How to treat multiple shrubs

Cumulative feet of shrub height is the total height of all shrubs to be treated. This is determined by estimating the height of all individual shrubs in feet and totaling the sum. With this information, you can correctly mix the appropriate amount of Merit needed for the shrub or foliage plant application.

Example: If you have two shrubs that are 2 feet in height and one shrub that is 5 feet in height you would have 9 feet of cumulative shrub height. Measure the Merit according to the instructions above and apply to the individual shrub according to its own height. For instance if you decided to use 1 gallon of water per foot of shrub height, the shrub that is 5 feet in height would receive 5 gallons of diluted Merit solution and the shrubs that were only 2 feet in height would receive 2 gallons each of the diluted Merit solution.

Rating Snapshot

5 stars   11
4 stars   2
3 stars   0
2 stars   0
1 star   0

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Average Customer Rating
5 out of 5 stars (13)

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  • 29 of 30 people found this review helpful:

    5 of 5 stars  Kills root aphids. Thank you
    By Cb in Denver, CO on 06/24/2011

    Our green house had a bad infestation of aphids and particularly root aphids. Did one treatment at 1/4 tsp per gallon. Poured about four cups per container or until very slight run off. 24 hrs later every aphid in the root zone had surfaced and was dead. There must have been thousands of aphids . I could not believe it. I'm sure a foliar spray would definitely knock out any bugs on the foliage as well. This product is systemic so it should hold a good residual in the root zone for a few weeks. The aphids try to come back but die off fairly quickly. Great product but use sparingly as noted.

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  • 19 of 20 people found this review helpful:

    5 of 5 stars  Merit
    By Chris in Cincinnati, Ohio on 05/03/2011
    Verified Purchase

    I had a terrible problem with Boxwood Leafminers and tried everything under the sun to try to eradicate them. I used Merit as a soil drench on about 150 boxwoods that were infested. One treatment did the job for me and now my boxwoods look spectacular. I really liked this product.

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  • 9 of 9 people found this review helpful:

    5 of 5 stars  Great stuff
    By Dk in South Bend, Indiana on 07/05/2012
    Verified Purchase

    Knocked the mealy bug in orchids due to the fact I could dunk the pot and get those bugs hiding out in the media. Now I am using it as a soil drench on ornamentals as well and it knocks mealy dead. About to order my second bottle.

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  • 8 of 11 people found this review helpful:

    4 of 5 stars  merit 75 wp - 2 oz. jar
    By Bill in North Carolina on 05/13/2012
    Verified Purchase

    Seams to do what it claims but time will tell. It would be nice if a measuring spoon was incorporated into the jar.

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  • 7 of 7 people found this review helpful:

    5 of 5 stars  perfect for so much
    By Landscape in Cleveland TN on 01/18/2013
    Verified Purchase

    You can't beat Merit for preventing and treating so many pests and diseases. Mixes well with water and is easy to use as a drench. NO spraying! I use it every spring for all my client's yards to avoid many problems down the line. Using it every year has virtually eliminated problems with boxwoods, laurels and so many more shrubs.

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  • 7 of 8 people found this review helpful:

    5 of 5 stars  systemic pesticide worth it
    By Glenn in Bradenton Beach, FL on 05/10/2012

    I was hesitant to get this due to the cost but read other reviews being positive so I gave it a try. I needed a systemic due to plants hang inside and wanted something that would last not just a contact pesticide. I spray them outside then wait to put them back. As the other reviewer said a little goes a long way. So far the product is working on killing mealy bugs on hanging potted plants. It is a very fine powder so make sure not to mix in a windy area. I added a spreader sticker which I think helps keep product contact for absorption.

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  • 6 of 7 people found this review helpful:

    5 of 5 stars  White fly problem
    By Gabec in Davie Florida on 06/05/2013
    Verified Purchase

    Product acted quickly and results are as expected. For the quantity this product seems very expensive. It is concentrated and appears very strong in terms of chemical components. It did the job.

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  • 5 of 9 people found this review helpful:

    5 of 5 stars  Kills bugs dead!
    By Don in South Bend, IN on 08/07/2012
    Verified Purchase

    I love Merit 75 WP. Use it personally on my orchid collection and use it extensively at city conservatories. Mealybug was rampant in conservatories and now controlled with a regimen with this product as the main treatment along with fogging and Isopropyl alcohol. The product is easy to apply (I use drench) and immediately effective. So far retention of the product in the plants seems good. I would not recommend this nor any other systemic product for outdoor use on blooming plants due to loss of beneficial insects through poisoning.

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  • 5 of 7 people found this review helpful:

    4 of 5 stars  Merit 75 WP
    By William in San Dimas on 02/25/2013
    Verified Purchase

    Received the product promptly, well packaged. Use my first six grams for my two year old oranges, lemon, lime and sweet limes. Picked off all the leaf miner infested leaves, put them in plastic bags, sealed and discarded. Then applied the product at the rate of half a gram per inch of diameter of the particular tree. Very easy to dissolve, afterward just hosed the base of the trees with a few gallons of water. Now I can only wait and keep an eye on all the new buds and leaves.

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  • 4 of 5 people found this review helpful:

    5 of 5 stars  Hemlocks/North Caolina Mountians
    By Doug in Boone, NC on 06/15/2014
    Verified Purchase

    Merit 75 for my large hemlocks has been awesome. I have saved several large hemlocks around our house. Very easy to use-just mix in a 5 gallon bucket ,make a few holes around the base of the tree and pour in.

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  • 2 of 2 people found this review helpful:

    5 of 5 stars  This Stuff Works
    By Tim in LA, CA on 05/06/2014
    Verified Purchase

    This works for water bugs. I had some bugs in my res and when I poured this in the next day they were dead.

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  • 1 of 1 people found this review helpful:

    5 of 5 stars  Merit 75 Very good for purpose
    By Jaki in California on 10/28/2015

    Purchased for wooly aphids that had invaded my orchids. Very concentrated but seems to have done the job very well.

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  • 5 of 5 stars  Wacked aphids
    By Dawsopn in Maggie Valley, NC on 06/08/2016

    I live in NC and have a potted schefflera. It winters in my garage (6 months of the year). Spring time means aphids. The soap spray was a dud. Black ants getting fat but not enough of them. A TSP of this sprinkled over the soil and then watered in. Gone! Gone from my Mandeviilla also. Whacks wolley adelgins from hemlocks. Takes about 3-4 months and lasts 5 years. They are back. I was told that it won't work a second time. We shall see.

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Most Helpful Q&A's

05/15/2010 Therese

QHow much Merit insecticide do I need?
I am a bit confused about how much product I would need. I have used Bayer Advanced and they ask for the distance around the tree and then to use 1oz per inch of distance. These instructions are quite different with this product. You have me dividing that distance(circumferance)to get the diameter. According to your formula I have 7 trees with a combined DBH of 82.72. Which at a rate of 1.4 tsp would mean about 116 teaspoons. So how many teaspoons are in the 2oz jar of product.

A

One 2oz jar of Merit WP contains enough product for about 30 cumulative inches of tree trunk diameter (at the highest concentration for systemic control). These small 2oz jars are usually purchased by people who only have to treat one or two trees or shrubs. When you need to treat several trees the Merit 75WSP envelope is usually the way to go. One envelope of the Merit 75WSP contains enough product for about 96 cumulative inches of tree trunk diameter at the highest concentration. As a low cost alternative we recommend Dominion 2L which has the same active ingredient as Merit and treats the same insects.  One bottle of Dominion 2L contains enough product for about 137 inches of tree trunk diameter at the highest concentration.

25 of 31 people found this answer helpful.
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08/29/2012 Roger from Toms River Nj

QHow do I drench apply Merit 75 to treat Bronze Birch Borer?
Do I dilute one package (1.6 oz) into 10 gallons of water and pour it around the tree? The instructions are not complete clear.

AWe agree, the directions can be very confusing. You will dilute the 1.6 oz pack in at least 10 gallons of water and pour the dilution around the base of the tree. You will need to use 1.6 oz (1 packet) MERIT 75 WSP per 24 to 48 inches of trunk diameter.

16 of 16 people found this answer helpful.
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11/21/2009 Keith

QHow do I use Merit 75 WP for emerald ash borer control on two trees?
I have been told by your expert that Merit 75 WP is the product to use as a drench for protecting 2 trees that I have from the emerald ash borer. What quantities, and what dilution rate do I need for a tree that is 10 to 12 inches in diameter?

AThe Merit 75 WP product label is one of the most confusing of all the products that we sell.  You need 1.4 level teaspoons of Merit per inch of diameter. This is the highest rate and should be used for all boring insects. The amount of water that is used will vary depending on soil conditions and volumes that are easy for applicators to use. The minimum amount of water that should be used is 1 pint per inch of tree diameter but you may use 1 quart -1 gallon of water per inch as well. Denser soils such as clay do not accept water as readily, so the lower volume of water is suggested.  Since sandy soils can accept more water, using the higher volume of water is preferred.

15 of 15 people found this answer helpful.
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09/29/2014 Susan from Tulsa Ok.

QTo spray the foliage of shrubs, how much Merit 75 WP to a gallon of water spraying for Aphids?

A

Using Merit 75 WP for the treatment of Aphids as a foliar spray you mix 0.7 to 1.4 level teaspoons MERIT 75 WP Insecticide per foot of shrub height or 1 to 2 ounces per 30 cumulative feet of shrub height. Below is the recommended application dosage rates for Merit 75 WP MERIT 75 WP
(Level Measure)                       (Water)
0.25 tsp.                               2.5  Gallons
0.5 tsp.                                 5.0 Gallons
1 tsp.                                  10.0 Gallons
2.5 tsp.                               25.0 Gallons 
5 tsp.                                  50.0 Gallons
3 Tbsp. + 1 tsp.                  100.0 Gallons

15 of 17 people found this answer helpful.
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04/17/2010 Matt

QI have a problem with grubs in my lawn. What kind of spray works best to kill them?

A

Merit, or the active ingredient in Merit, Imidacloprid, is the best product for grub control. It is important to start treatment prior to egg hatch. For optimum control irrigation or rainfall needs to occur within 24 hours of the application to move the product through the thatch layer and into the soil. You can contact your local cooperative extension office to see when egg hatch normally occurs in you region. Dominion 2L contains the same active ingredient as Merit and can be used as a money saving alternative.

11 of 22 people found this answer helpful.
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Most Recent Customer Questions

06/12/2017 Jason from Adirondacks, Ny

QWill Merit 75 WP kill tent catperillars?
My sugar maple has thousands of them and they are way up in the canopy.

A

Merit 75 WP is not labeled for treating tent caterpillars. We do offer other products to eradicate this insect. We would recommend the Chapin Slide Pump Sprayer to disperse a liquid to reach the furthest distance than hand pump or backpack sprayers.

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06/04/2017 Alfredo from El Paso

QCan Merit 75 WP be used on trees that are not infected by anything?

A

Yes, you can use Merit 75 WP on trees that aren't infected with anything; however, be aware that there is a limit on how much product you can use per year.  As a low cost alternative we recommend Dominion 2L which has the same active ingredient as Merit and treats the same insects.  One bottle of Dominion 2L contains enough product for about 137 inches of tree trunk diameter at the highest concentration, where one 2 oz jar of Merit 75 WP contains enough product for about 30 cumulative inches of tree trunk diameter (at the highest concentration for systemic control).

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05/25/2017 Joe from Huntsville, Al

QWill Merit 75 WP treat an infestation of Pecan Phylloxera systemically?
If so, when and how should it be applied?

A

Merit 75 WP can be used to treat for pecan phylloxera but per the product label, it should be applied as a foliar spray.  You will apply at the rate of 0.25 tsp per 2 gallons of water.  Two applications, 10-14 days apart may be necessary.  Per the product label, apply before infestations become severe for best results.  

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05/23/2017 Shannon from Beavertown, Pa

QSince Imidacloprid is the active ingredient in Merit 75 WP, can I use it for termites?
I read full label the active ingredient in Merit is Imidacloprid, same thing that supposly kills Termites but do not see it on the label?

A

Merit 75 WP - 2 oz. does contain Imidacloprid which is also found in other products that are labeled for termites. Merit brand products are formulated and labeled for turf and ornamental applications, not for termite control. If you would like a product containing imidacloprid for termite treatment, then we suggest Dominion 2L.

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04/01/2017 Jesse from Turner

QDoes Merit 75 WP kill on contact?

A

No, Merit 75 WP does not kill on contact. It is a slower acting product, and that would be the same for any product that had imidacloprid as the ative ingredient. 

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03/13/2017 Jon from Eugene, Or

QShould soil be wet or dry before applying Merit 75? After applying, how long should you wait to water?
Also, if doing a soil drench does the pH of the solution matter?

A

Per the product label for Merit 75 WP - 2 oz.: Applications should not be made when turfgrass areas are waterlogged or the soil is saturated with water.   Adequate distribution of the active ingredient cannot be achieved when these conditions exist.   For optimum control, irrigate thoroughly to incorporate MERIT 75 WP Insecticide into the upper soil profile after application.  The pH of the water is not important.

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03/03/2017 Roberto from Fort Lauderdale

QWill Merit 75 WP - 2 oz. kill spider mites on citrus?

A

Merit 75 WP - 2 oz. cannot be used to treat for spider mites on citrus. We recommend to Monterey Fruit Tree Spray.

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02/23/2017 Marcus from Huntsville

QCan I use Merit 75 to control leafminers on boxwoods?

A

Merit 75 WP is labeled for the treatment of leafminers on turfgrass, ornamentals, trees, shrubs, flowers, groundcovers, and in and around commercial or residential buildings. You will need 0.7-1.4 level teaspoons per foot of shrub height diluted into at least 10 gallons of water per 1000 sq ft of ground directed at the root base. If the height of the shrub is 5 ft, then you will need 3.5 - 7 level teaspoons of Merit diluted into at least 10 gallons of water, all directed at the root base. If you have more than 1000 sq ft of ground around the root base, the amount of Merit will stay the same but you will use more water to ensure thorough and even coverage. The amount of Merit (3.5 - 7 teaspoons) is determined by how bad your problem is.  If you have an existing problem now that you have not treated before, you should use the higher concentration of Merit which is the 7 teaspoons.  If you are doing maintenance and do not have a current issue you could use the 3.5 teaspoon amount in 10 gallons of water.

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09/13/2016 Stephanie from Lincoln, Nebraska

QHow much Merit 75 WP would I use on a juniper bonsai with a trunk diameter of 13.25 inches?
I am wondering how much product to mix per gallon to use with a potted tree.

A

To use Merit 75 WP on a tree that size, you would need to use 0.7 to 1.4 level teaspoons of the powder per inch of trunk diameter in sufficient water to dilute the product thoroughly and drench the root system. So, you would need 9.28 - 18.55 teaspoons (1.55 - 3.1 oz) for that tree, per the product label. You will probably use at least 5 gallons of water to treat a tree that size. You should also keep the treated area wet for 7-10 days after treatment.

1 of 1 people found this answer helpful.
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08/01/2016 Katie from Natick, Ma

QDoes Merit work as a soil drench for Bronze Birch Borer during drought conditions?

A

Merit 75 WP - 2 oz. would be good for borers but you will be required to water in the application with about 1/2 inch of water. It is also important to keep the soil moist for at least two weeks following the application to help with root uptake.

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