Maestro 4EC Selective Herbicide

Registered until
Registration number
Active materials

This product is formulated as an emulsifiable concentrate of octanoic acid and heptanoic acid esters of bromoxynil containing the equivalent of 4 pounds of bromoxynil per gallon. This product is a selective postemergence herbicide for control of important broadleaf weeds infesting corn (field and pop), sorghum (grain and forage), wheat, barley, oats, rye, triticale, alfalfa (seedling), flax, onions, garlic, mint (established peppermint and spearmint), grasses grown for sod or seed production, non-residential turfgrass, and non-cropland and industrial sites. Optimum weed control is obtained when this product is applied to actively growing weed seedlings. This product is primarily a contact herbicide, therefore thorough coverage of the weed seedlings is essential for optimum control. This product has little residual activity. Therefore subsequent flushes of weeds will not be controlled by the initial treatment. Generally crops that form a good canopy will help shade subsequent weed flushes. However, certain crops or short-straw varieties, for example Yaccora Rojo wheat, may not develop the crop canopy fast enough to shade the subsequent flushes of weeds. Occasional transitory leaf burn may occur. The temporary leaf burn is similar to that seen with liquid fertilizer. Because the activity of this product is not systemic, recovery of the crop is generally rapid with no lasting effect. Frequency and amount of leaf burn may be  greater when crops are stressed by abrasive winds, cool to cold evening temperatures or mechanical injury, such as that caused by hail, sleet or insect feeding. To reduce the potential for temporary leaf burn, applications should be made to dry foliage in the specified spray volumes per acre when weather conditions are not extreme.

Registered for culturesRate
Corn0.5 - 1 pt
Sorghum0.5 - 1 pt
Winter wheat0.5 - 1 pt
Spring wheat0.5 - 1 pt
Spring barley0.5 - 1 pt
Winter barley0.5 - 1 pt
Spring oats0.5 - 1 pt
Winter oats0.5 - 1 pt
Winter rye0.5 - 1 pt
Spring rye0.5 - 1 pt
Winter triticale0.5 - 1 pt
Spring triticale0.5 - 1 pt
Alfalfa0.5 - 1 pt
Winter flax0.5 fl oz
Spring flax0.5 pt
Garlic0.75 - 1 pt
Mint0.5 - 1 fl oz
Onions0.5 - 0.75 pt
Grassland0.5 - 1 pt