Marengo G
Product Overview
Marengo® G is a granular, selective, preemergence herbicide, that controls many annual grasses, broadleaves and sedges, providing long lasting control. Marengo G is labeled for use on over 250 nursery plants.
Marengo G offers up to 8 months of residual control. It controls a wide range of weeds, while offering excellent plant safety. Plus, Marengo G uses Verge® carrier to provide uniform particle distribution with virtually dust-free application.
Key Benefits
- Up to 8 months of selective, preemergence weed control reduces labor and eliminates repeat applications
- Labeled for use on over 115 ornamental crops
- Broad-spectrum control of over 70 different weeds means fewer escapes and fewer cleanup applications
- Effective on hard-to-control weeds such as eclipta, bittercress, groundsel, oxalis, marestail, spurge, crabgrass and annual bluegrass
- Spring or fall application flexibility to meet unique grower needs
- Verge® carrier provides uniform, virtually dust-free particle distribution
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FAQ
Can I use Marengo G on a wide variety of plants?
Yes, Marengo G is labeled for use on over 115 ornamental plants.
Where can Marengo G be applied?
Marengo G can be applied in production nurseries including field-grown and container ornamentals, non-bearing fruit and nut trees, ornamental production facilities (such as shadehouses, lathhouses and hoophouses) and hardscapes.
What is the re-entry interval (REI) when using Marengo G?
The REI for Marengo G is 12 hours post-application.
What personal protective equipment (PPE) is required when using Marengo G?
Long-sleeved shirt, long pants and shoes plus socks are required.
How quickly does it work?
Marengo G will begin to work once it has been activated by rainfall or irrigation.
How long will the effects last?
Marengo G can last for up to 8 months, depending upon environmental conditions and timing of application.
Do I need to rotate Marengo G with other preemergence herbicides?
As part of best management practices and resistance management, it is recommended to rotate Marengo G with other classes of chemistry, such as Ronstar® G.
How does Marengo G fit into a weed management program?
Marengo G is the longest-lasting nursery herbicide that provides broad-spectrum weed control, including control of some of the toughest nursery weeds. Marengo G can be applied to a wide range of ornamentals with the convenience of an outstanding carrier.
State Approvals
Marengo G has been federally approved and registered in all continental US states. Contact your Envu representative to learn more.
This map was most recently updated March 18, 2025