Diuron 4L Herbicide

Diuron 4L Herbicide, manufactured by Alligare LLC, is a residual herbicide formulated to target annual and perennial grasses and herbaceous weeds in crops.

This suspended concentrate may also be used for pre-and post-emergent control in non-crop areas such as industrial sites and rights-of-way. 

While the product is non-selective as a post-emergent, it can be used selectively on certain crops when used as a pre-emergent. This liquid flowable herbicide is easy to mix and apply using several different methods.

Tools Needed

You will need a professional pesticide spraying rig for large-volume applications.

How to Use

• Step 1: Determine how much Diuron 4L Heribicde you will need by measuring the square footage of the treatment area. To do this, measure the treatment area's length and width in feet, then multiply them together (length x width = square footage). Take the square footage for acreage, then divide it by one acre (square footage / 43,560 = acreage). For spraying around crops, the rate varies from 0.6 to 8 quarts of Diuron 4L Herbicide per acre, depending on the crop and soil texture (sandy loam, clay, silt loam, etc.). For general applications on noncrop sites (rights-of-way, industrial areas), 4 to 12 quarts of product is the rate per acre in 25 to 100 gallons of water.
• Step 2: Fill the tank halfway with the required amount of water then add the appropriate measured amount of Diuron 4L. Close the sprayer and agitate it until the solutions is mixed thoroughly.
• Step 3: Apply the product selectively to crop areas either pre-emergently on crops or post-emergently on noncrop areas. Put the sprayer in a fan spray setting for even coverage.
• Step 4: Check back in two weeks and reapply if necessary until the target weed has died.

Where to Use

Diuron 4L Herbicide is for use in crop areas for selective weed control. It can be used for non-selective post-emergent weed control in non-crop areas such as airports, highway, utility and railroad rights-of-way including switchyards and storage yards, sewage disposal areas; uncultivated agricultural areas (noncrop producing, which includes farmyards, fuel storage areas, fence rows, barrier strips); and industrial sites (outdoor, such as, lumberyards, pipeline and tank farms).

When to Use

Apply when you have weed problems, particularly in the early spring. Diuron is also a pre-emergent, so you can apply it preventatively in the fall and spring. For post-emergent treatments, best results are obtained on succulent weeds growing under conditions of high humidity and a temperature of 70 degrees Fahrenheit or higher. Apply on a calm day when the wind speed is less than or equal to 10 miles per hour to prevent spray drift.

Safety Information

Diuron 4L 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. 

Keep people and pets out of the treated area until the spray has dried. 

Special Considerations

Diuron 4L application rates vary depending on the weed you are treating, the specific crop you will be spraying and the soil type. You will need to check the label carefully for proper info for your specific weed problem. Diuron 4L can not be used on home plantings of trees, shrubs, or herbaceous plants or lawns, walks, driveways, tennis courts, or similar areas.