Grassmaster Herbicide

Grassmaster Herbicide (formerly called Dicamba Plus 2,4-D Herbicide), manufactured by Alligare, is a selective post-emergent herbicide used for controlling a broad spectrum of annual, biennial, and perennial broadleaf weeds and brush in grass forages and agricultural settings.

This emulsifiable concentrate product is easy to mix and use. Plants quickly absorb Grassmaster Herbicide through their roots and interfere with the plant's growth hormones, resulting in the death of many broadleaf weeds.

Grassmaster Herbicide effectively controls weeds like cocklebur or chickweed within 45 days of application. 

Tools Needed

Grassmaster Herbicide can be applied with a hand-held sprayer, backpack sprayer, or spray rig. We recommend using a spray rig for large-volume applications.

How to Use

• Step 1: Determine how much Grassmaster Herbicide you will need to use by measuring the square footage of the treatment area. To do this, measure the length and width of the treatment area in feet, then multiply them together (length X width = square footage). For acreage, divide the square footage by one acre (square footage / 43,560 sq. ft. = acres). The mixing rate will vary depending on the type of weed you are treating. For annual weeds, you will use anywhere between 0.5 and 4 pints of Grassmaster Herbicide per acre. You will use anywhere between 0.5 and 5 pints of product for biennial and perennial weeds. Use between 5 and 40 gallons of water per acre for optimal application. Use the higher spray volume for dense or tall vegetation. Use 1 fluid ounce of product per gallon of water for spot and small area applications. 
• Step 2: Once you have properly measured your area and determined how much Grassmaster Herbicide you need, you are ready to create your solution. Fill your sprayer halfway with water, then add the required amount of herbicide to the tank. Replace the cap and agitate by shaking the sprayer. Add your required amount of Alligare 90 and the remaining water, then repeat agitation until the herbicide solution is thoroughly mixed.
• Step 3: Now that your solution is created, you can apply treatment. For maximum results, thoroughly cover the weeds with spray. You should apply your solution to the point of runoff. Be sure to get even coverage when applying. Check your spray settings; this will affect how your solution is applied to the weeds.

Where to Use

Grassmaster Herbicide is designed for agricultural lands, croplands, ranges, and pastures. It also controls brush and broadleaf weeds on rights-of-way, forest brush, industrial sites, and other labeled non-crop areas. See the label for the full list.

When to Use

Apply when weeds are young and growing since they are most vulnerable. Use this product on a day when wind speeds are lower than 15 mph and the temperature does not exceed 90 degrees Fahrenheit.

Safety Information

Grassmaster Herbicide is safe to use around children and pets when applied according to the product label instructions. Always wear the proper personal protective equipment (PPE) when mixing and applying this product.

This product is toxic to fish and other aquatic organisms. Do not apply to water or areas near bodies of water.

Special Considerations

Because Grassmaster Herbicide is a post-emergent herbicide, it will only work after weeds have become visible on your land.