Dual Magnum Herbicide is a highly effective herbicide that controls most annual grasses and broadleaf weeds. Contains an active ingredient that is known for controlling grass and weeds in corn, peanuts, soybeans, and cotton. It may be applied as preemergence, postemergence treatment, pre-plant surface-applied, or pre-plant incorporated treatment. Dual Magnum Herbicide is uniquely formulated as an emulsifiable concentrate to easily apply and to provide convenience to users. It may be applied to corn, tomatoes, soybeans, sunflowers, peas, peanuts, cotton, potatoes, sugar beets, lupines, tall fescues, and other crops. If used as a preemergence treatment, apply during planting or right after planting. Can be tank mixed with other registered herbicides.
Dual Magnum is taken up by the shoots and/or roots of emerging weeds. This uptake results in the inhibition of shoot and root tissue growth soon after weed germination. Because of this, Dual Magnum will not control emerged weeds. Control weeds that are present by another means, e.g., mechanical means or by another herbicide.
If Dual Magnum is incorporated, do not exceed a 2-3 inch depth. Any tillage after the Dual Magnum incorporation and before planting may not exceed 2-3 inches or the depth of incorporation.
Dry weather following application of Dual Magnum may reduce weed control. Cultivate if weeds develop.
Where reference is made to weeds partially controlled, partial control can either mean erratic control from good to poor, or consistent control at a level below that generally considered acceptable for commercial weed control. Control of these weeds can be erratic, due partially to variable weather conditions. The following procedures may improve the control of weeds listed as partially controlled in Table 1:
Thoroughly till soil to destroy germinating and emerged weeds.
Plant crop into moist soil immediately after tillage. If Dual Magnum is to be used preemergence, apply at planting or immediately after planting.
If available, sprinkler irrigates within 2 days after application. Apply 1/2-1 inch of water. Use lower water volume (1/2inch) on coarse-textured soils and higher volume (1 inch) on fine-textured soils. Also, refer to the section on Center Pivot Irrigation Application for this method of applying Dual Magnum.
If irrigation is not possible and rain does not occur within 2 days after planting and application, weed control may be decreased. Under these conditions, make a uniform, shallow cultivation as soon as weeds emerge.
Weeds Controlled or Partially Controlled by Dual Magnum Applied Prior to Weed Emergence
*See label for the complete list of weeds controlled.