MARENGO G is a selective, pre-emergent alkylazine herbicide. MARENGO G provides extended residual control of many annual grasses including crabgrass, goosegrass, and annual bluegrass, as well as annual sedges, and some broad-leaf weeds in production nursery including in-ground and container woody plants, ornamentals, non-bearing fruit and nut trees in nurseries and ornamental production facilities (such as shadehouses, lathhouses and hoophouses), as well as hardscapes.

MARENGO G needs to be activated prior to weed germination for most effective control. For maximum activity against germinating weeds, MARENGO G requires rainfall or irrigation prior to weed germination.

MARENGO G is a highly active herbicide that provides effective weed control when applied to the soil around many woody ornamentals grown in-ground. MARENGO G may also be used over-the-top of listed container-grown ornamentals with adequate precautions. MARENGO G may damage sensitive plants, if granules are allowed to remain in contact with foliage.