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ENVU (FORMERLY BAYER)
Merit 0.5 G Granular Insecticide
Merit 0.5 G Granules are insecticide granules that can be applied to ornamental turfs and lawns to control grass-destroying pests such as chinchbugs and grubworms. The active ingredient is imidacloprid, which works systemically and has a long residual effect.
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Merit Granules product page
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Price as of
11/27/25
11/27/25
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Merit 0.5 G Granules, manufactured by Bayer, is formulated with the active ingredient imidacloprid. They seep into the soil and work systemically through the root systems of vegetation to kill insects on ornamental trees and plants.
The active ingredient of Imidacloprid in Merit 0.5 G Granules disrupts the insect's nervous system, causing the bug to cease feeding or reproducing before eventually dying.
Merit 0.5 G Granules provide a long residual effect lasting up to 3 months while being safe and easy to apply. Use them on residential and commercial lawns to control chinch bugs, mole crickets, grub worms, and more.
Tools Needed
To apply Merit Granules, you will need a handheld or push spreader to broadcast the granules.
How to Use
- Step 1: Determine how much Merit Granules you will need for the treatment area by measuring the square footage. Do this by measuring the treatment areas' length and width in feet and multiplying them together (length x width = square footage). The rate to apply Merit 0.5 G ranges from 1.4 to 1.8 lb. per 1,000 sq. ft. So, if you calculated a 2,500 sq. ft. yard to treat, you will need 3.5 to 4.5 lbs. of Merit 0.5 G. Refer to the label for specific application rates and restrictions.
- Step 2: Load the appropriate amount of Merit 0.5 G Granules into your spreader. Follow the label for spreader settings and make adjustments based on your spreader model. Carefully calibrate your spreader, as rates will vary depending on speed, equipment wear, and the age of your spreader.
- Step 3: Push the spreader steadily, walking around the perimeter and towards the middle. We suggest overlapping the pattern by 1 to 2 feet to ensure complete coverage.
- Step 4: Water or irrigate treated areas within 24 hours after applying the granules. This ensures the granules soak into the soil for maximum results.
Where to Use
Merit 0.5 G Insecticide is ideal for use on residential and commercial turfs, lawns, ornamental gardens, golf courses, parks, sports fields, and other outdoor landscaped areas, except for commercial sod farms.
Do not spread this product in areas that are flooded or over-saturated, as this will prevent penetration to the root system.
When to Use
Merit 0.5 G Granules can be applied anytime labeled insect activity is seen on turfs, lawns, ornamental trees, and bushes. The best time to apply Merit Granules is before or during the insect egg-laying and hatching periods. We suggest applying Merit Granules within 24 hours of rainfall for maximum results.
Safety Information
Merit 0.5 G Granules are safe to apply around pets and children when applied according to the product label instructions. Always wear the proper personal protective equipment (PPE) when handling and using this product.
Special Considerations
Merit 0.5 G Insecticide Granules work by penetrating the soil to soak through the root system of grasses, trees, and plants. This means it requires rain, watering, or some form of irrigation for maximum benefits.
| Restricted Use | No |
|---|---|
| Shipping Restrictions | AK, DC, OH, WA |
| Availability | Online |
| Signal Word | CAUTION |
| Keith's Pro Tip | "When using Merit 0.5 G Granules, optimum control will be achieved when applications are made before the egg hatch of the target pest, followed by sufficient irrigation or rainfall to move the active ingredient through the thatch." |
| Target Pests Multi | Annual Bluegrass Weevil, Asiatic Garden Beetle, Asiatic Garden Beetle Larvae, Billbugs, Black Turfgrass Ataenius, Chafer Beetle Larvae, Chinch Bugs, Crane Flies, Cutworms, European Chafer, European Crane Fly, Green June Beetles, Grubs, Japanese Beetle, Japanese Beetle Larvae, June Beetles, May Beetle, Mole Crickets, Northern Masked Chafer, Oriental Beetle, Oriental Beetle Larvae, Phyllophaga, Phyllophaga Larvae, Southern Masked Chafer, White Grub Larvae |
| Time to Kill | Merit 0.5 G Granules does not kill targeted insects on contact. The product must be watered into the soil for effectiveness and depending on the target insects and the severity of the infestation it may take 1 to 2 weeks for noticeable results. The residual effects of Merit Granules is 2 to 3 months. |
| Chemical Type | Insecticide |
| Formulation | Granular |
| Application Methods | Granular Spreading |
| Product Drawbacks | Merit 0.5 G Granular Insecticide must be watered within 24 hours after application. Do not apply when turfgrass areas are waterlogged or the soil is saturated with water. Adequate distribution of the active ingredient cannot be achieved when these condit |
| Active Ingredient | Imidacloprid 0.5% |
| Application Equipment | Gloves, Hand Spreader, Push Spreader, Respirator Mask |
| Mix Rate | Merit 0.5 G Granules is a ready-to-use product. Mixing is not required. |
| Use Sites | Outdoors |
| Yield | 1.4 to 1.8 pounds of Merit 0.5 G Granules will treat 1,000 square feet. A 30 pound bag of Merit Granules will treat up to 1/2 an acre. 60 to 80 pounds will treat 1 acre. |
| EPA Registration No. | 101563-63 |
| Shelf Life | Merit 0.5 G Granules will last for up to 1 to 2 years when stored according to the product label. Store Merit Granules-Turf Insecticide in a cool, dry storage area. |
| Comparable Products | Bifen LP Granules |
| Children or pets? | No |
| Property Characteristics | Food-Bearing Plants |
| Availability | Online |
| Restricted Use | No |
| Brand | ENVU (FORMERLY BAYER) |
| Keith's Pro Tips | "When using Merit 0.5 G Granules, optimum control will be achieved when applications are made before the egg hatch of the target pest, followed by sufficient irrigation or rainfall to move the active ingredient through the thatch." |
| Product Drawbacks | Merit 0.5 G Granular Insecticide must be watered within 24 hours after application. Do not apply when turfgrass areas are waterlogged or the soil is saturated with water. Adequate distribution of the active ingredient cannot be achieved when these condit |
| Target Pests | Annual Bluegrass Weevil, Asiatic Garden Beetle, Billbugs, Black Turfgrass Ataenius, Chinch Bug, Cutworms, European Chafer, European Crane Fly, Green June Beetke, Japanese Beetle, Mole Crickets, Northern Masked Chafer, Oriental Beetle, Southern Masked Chafer, White Grub Larvae |
| Application Equipment | Gloves, Hand Spreader, Push Spreader, Respirator Mask |
| Application Methods | Granular Spreading |
| Active Ingredient | Imidacloprid 0.5% |
| Product Type | Insecticide |
| Formulation | Granular |
| Application Rate | Merit 0.5 G Granules is a ready-to-use product. Mixing is not required. |
| Shelf Life | Merit 0.5 G Granules will last for up to 1 to 2 years when stored according to the product label. Store Merit Granules-Turf Insecticide in a cool, dry storage area. |
| Yield | 1.4 to 1.8 pounds of Merit 0.5 G Granules will treat 1,000 square feet. A 30 pound bag of Merit Granules will treat up to 1/2 an acre. 60 to 80 pounds will treat 1 acre. |
| Use Sites | Outdoors |
| Time to Kill | Merit 0.5 G Granules does not kill targeted insects on contact. The product must be watered into the soil for effectiveness and depending on the target insects and the severity of the infestation it may take 1 to 2 weeks for noticeable results. The residual effects of Merit Granules is 2 to 3 months. |
| Comparable Products | Bifen LP Granules |
| EPA Registration # | 101563-63 |
*Price does not include freight. We guarantee our rate plus shipping will be less than anyone else's price.