General Information



Use only in accordance with instructions on the label. Read the entire label before use, including the LIMITED WARRANTY, TERMS OF SALE, AND LIMITATIONS OF LIABILITY section. If the terms in this section are not acceptable, immediately return unopened product.



Glyphosate 4 is a water soluble liquid that readily mixes with water for application as a foliar spray to control or destroy most herbaceous plants. This product can be applied by using most standard industrial or field-type sprayers after it is diluted and thoroughly mixed with water.

Glyphosate 4 works by moving through the plant from where it contacts the foliage to and into the root system. Within 2 to 4 days, visible effects on most annual weeds are apparent; however, effects may not be visible on most perennial weeds for 7 days or more. Effectiveness and visual effects of this product may be slower if very cool or cloudy weather follows treatment. A gradual wilting and yellowing of the plant will be visible, which then advances to total browning of all aboveground growth and deterioration of underground plant parts.

Unless stated otherwise within the label, application should be delayed until vegetation has emerged and has reached the specific stages described for control of vegetation under the WEEDS CONTROLLED sections of the label. Unemerged plants that arise from unattached underground rhizomes or root stocks of perennials are not affected by Glyphosate 4, and will keep growing. Because of this, treatment should be made at late growth stages (approaching maturity) for best control of the majority of perennial weeds.

Always apply the higher rate of this product per acre within recommended ranges when weed growth is heavy or dense, or, when weeds are growing in a noncultivated, nondisturbed area.

Reduced weed control may result if weeds are treated when drought stress, insect damage, or disease is present. Additionally, if weeds are heavily covered with dust, reduced weed control will result.

Effectiveness may be reduced if applications are made to annual or perennial weeds that have been grazed, mowed or otherwise cut, unless they have been permitted to regrow to their recommended stages for treatment.

If rainfall or irrigation occurs within 6 hours of application, reduced effectiveness may result. Heavy irrigation or rainfall within 2 hours of application may wash off the chemical from foliage. In this case, a repeat treatment may be required.

Glyphosate 4 does not provide residual weed control. Use a label-approved herbicide program if subsequent residual weed control is desired. Users must read and carefully observe all cautionary statements and all other information on labels of all herbicides used.

NOTE: Buyer and users are responsible for all losses or damage resulting from the use and/or handling of mixtures of Glyphosate 4 with herbicides or other materials that are not specifically recommended on this product label. Reduced performance may result if users mix Glyphosate 4 with other herbicides or other products not recommended on the label.

Best results are obtained with uniform and complete spray coverage. However, do not spray weed foliage to the extent of runoff.

DOMESTIC ANIMALS: Glyphosate 4 is considered to be relatively nontoxic to dogs and other domestic animals. Note, however, that ingestion of this product, or of large amounts of vegetation that has been freshly sprayed with this product, may cause temporary gastrointestinal irritation, such as diarrhea, colic, vomiting, etc. If these symptoms are observed, the animal should be given plenty of fluids in order to prevent dehydration. A veterinarian should be contacted in the event symptoms persist for more than 24 hours.

NOTE: Using this product in a manner not consistent with the product label may result in personal injury, injury to animals or crops, or in other unintended consequences.


Do not apply this product through any type of irrigation system.

The following application equipment may be used when applying this product.

By Air: Helicopter and Fixed Wing.

By Broadcast Spray:

Controlled Droplet Applicator (CDA)—Boom mounted or hand held applicators that produce spray with a narrow range of droplet sizes.

Hand-Held and High-Volume Spray Equipment—Pump up pressure sprayers, handguns, mistblowers, handwands, knapsack and backpack sprayers, lances and other hand held and motorized spray equipment used to direct the spray directly onto the weed foliage.

Ground Broadcast Spray—Boom or boomless systems, pull-type sprayer, pick-up sprayers, floaters, spray coupes and other ground broadcast equipment.

Injection Systems—Aerial or ground injection sprayers.

This product is not registered in Arizona or California for application with mistblowers.

Selective Equipment—Wiper applicators, shielded sprayers, and recirculating sprayers (See the label for the specific instructions).


Unless otherwise specified on the label, use Glyphosate 4 in 3 to 15 gallons of water per acre.

For specific Glyphosate 4 rates, review the WEEDS CONTROLLED sections of the label. Do not exceed 1 quart Glyphosate 4 per acre unless otherwise specified. Aerial applications of Glyphosate 4 may be made in preharvest applications, fallow and reduced tillage systems, and annual cropping conventional tillage systems. For recommended volumes and application rates, review the individual use area sections of the label. FOR AERIAL APPLICATION IN ARKANSAS, CALIFORNIA, OR FRESNO COUNTY, CALIFORNIA, REFER TO THE “SUPPLEMENTAL USES” SECTION AT THE END OF THE LABEL FOR SPECIFIC RESTRICTIONS, INSTRUCTIONS, AND REQUIREMENTS.

Glyphosate 4 plus dicamba tank mixtures may not be applied by air in California.


For control of those perennial or annual weeds listed on the label, using broadcast equipment. Unless otherwise specified on the label, use the recommended rates of Glyphosate 4 in 3 to 40 gallons of water per acre. Review the WEEDS CONTROLLED sections of the label for specific rate information. As weed density increases, spray volume should increase (within the recommended range) to ensure adequate coverage. Avoid spraying a fine mist by carefully selecting the proper nozzle. Use flat fan nozzles for best results when using ground application equipment. Apply with an even distribution of spray droplets.


This product may be used in aerial or ground injection spray systems. It may be used as a liquid concentrate or diluted prior to injecting into the spray stream. Do not mix this product with the undiluted concentrate of other products when using injection systems unless specifically recommended.


When applying Glyphosate 4 by vehicle mounted CDA equipment, the rate of this product per acre must not be less than the amount recommended on the label when applied by conventional broadcast equipment. For vehicle mounted CDA equipment, use 3 to 15 gallons of water per acre.

To control labeled annual weeds with hand held CDA equipment, apply a 20 percent solution of Glyphosate 4 at a flow rate of 2 fluid ounces per minute and a walking speed of 2.2 feet/second (equivalent to 1 quart per acre). To control labeled perennial weeds, apply a 20 to 40 percent solution of Glyphosate 4 at a flow rate of 2 fluid ounces per minute with a walking speed of 1.1 feet/second (equivalent to 2 to 4 quarts per acre).

The spray pattern of CDA equipment is not easily visible. Exercise extreme care to avoid spray or drift contacting any foliage or green tissue of desirable vegetation. Severe damage or destruction may result.


Use coarse sprays only.

Clean water should be used when mixing this product; then apply to the foliage of vegetation to be controlled. For those applications that are to be made on a spray-to-wet basis, ensure uniform and complete spray coverage. Do not spray product to the point of runoff.

To control annual weeds that are listed on the label, spray a 0.5 percent solution of Glyphosate 4 plus nonionic surfactant to weeds that are smaller than 6 inches in height or runner length. This product should be applied before seedhead formation in grass, or before bud formation in broadleaf weeds. Do not till or mow for at least three days after application, unless otherwise specified.

Unless otherwise specified, for annual weeds over 6 inches tall, or if additional surfactant is not to be used, use a 1 percent solution. On harder to control perennials (such as dock, field bindweed, hemp dogbane, bermudagrass, milkweed and Canada thistle), best results are obtained by using a 2 percent solution.

If using application methods that result in less than total coverage, a 5 percent solution should be used for perennial and annual weeds, and use a 5 to 10 percent solution for trees and woody brush.

To prepare the desired volume of spray solution, mix the proper amount of Glyphosate 4 in water in accordance with the table in the label.


Glyphosate 4 may be applied through a recirculating spray system, a hooded sprayer, a sponge bar, a wiper applicator, or a shielded applicator after dilution and thorough mixing with water. It may be applied to the weeds listed on the label that are growing in any non-crop site specified on the label, but only when specifically recommended in cropping systems.

A recirculating spray system works by directing the spray solution onto those weeds growing above desirable vegetation. Any spray solution not intercepted by the weeds is then collected and returned to the sprayer for reuse.

A shielded applicator works by directing the herbicide solution onto weeds, while at the same time shielding desirable vegetation from the herbicide.

A wiper applicator works by rubbing weeds with an absorbent material that contains the herbicide solution.


If this product comes into contact with desirable vegetation, severe damage or destruction may result. Adjust applicators that are used above desired vegetation to ensure the lowest spray stream or wiper contact point is a minimum of 2 inches above desirable vegetation. Discoloration, stunting or plant destruction may result if mist, foam, droplets, or splatter of the herbicide solution settles on desirable vegetation.

Applications made above the crops should be made when the weeds are a minimum of 6 inches above the desirable vegetation. Better results may be obtained when more of the weed is exposed to the herbicide solution. Weeds not contacted by the herbicide solution will not be affected. This may occur in dense clumps, severe infestations or when the height of the weeds varies so that not all weeds are contacted. In these instances, repeat treatment may be necessary.

Limitations, Restrictions, and Exceptions


Grazing Restrictions: Glyphosate 4 may be used to treat undesirable vegetation in rights-of-way that pass through pastures, rangeland and forestry sites that are being grazed. For use in tank mix applications, comply with all restrictions appearing on the tank mix product labels.

There are no grazing restrictions for the following labeled applications of Glyphosate 4:

- Where the spray can be directed onto undesirable woody trees and brush, such as in handgun spray-to-wet or low volume directed spray treatments.

- For tree injection or frill applications and for treatments on cut stumps.

For broadcast applications, observe the following restrictions:

- For application rates of greater than 6 but less than 10 quarts per acre, no more than 15 percent of the available grazing area may be treated.

- For application rates of no more than 6 quarts per acre, no more than 25 percent of the available grazing area may be treated.

- All restrictions outlined above apply to lactating dairy animals. No other restrictions apply to lactating dairy animals.

These recommendations do not apply to rangeland outside of rights-of-way.

Actively Growing Bermudagrass

Glyphosate 4 may be used to control or partially control many annual and perennial weeds for effective release of actively growing Bermudagrass. In highly maintained turfgrass areas, DO NOT apply more than 16 fluid ounces of this product per acre, and DO NOT apply tank mixtures of this product plus Oust. For additional uses, refer to the ROADSIDES section, which gives rates for actively growing Bermudagrass treatments. Use only in areas where temporary injury or discoloration can be tolerated.


If weed growth is heavy or dense, or if weeds are growing in an undisturbed (non-cultivated) area, always use the higher rate of this product per acre within the recommended range.

Reduced performance may result when treating weeds that are heavily covered with dust. Allow regrowth to occur prior to treatment of weeds that have been mowed, grazed or cut.


Use 1 quart of Glyphosate 4 per acre if weeds are less than 6 inches in height or runner length.

Use 1.5 quarts to 4 quarts per acre if weeds exceed 6 inches in height or runner length, or when weeds are growing under stressed conditions.

When using spray-to-wet applications, apply a 0.5 percent solution of Glyphosate 4 to weeds less than 6 inches in height or runner length. Apply before seedhead formation in grass, or prior to bud formation in broadleaf weeds. For annual weeds that exceed 6 inches in height, or for smaller weeds growing under stressed conditions, use a 1 to 2 percent solution. The higher rate should be used for tough-to-control species or for weeds over 24 inches tall.

Barley; Barnyardgrass; Bittercress; Black nightshade; Bluegrass, annual; Bluegrass, bulbous; Brome, downy; Brome, Japanese; Browntop panicum; Buttercup; Carolina foxtail; Cheatgrass; Chervil; Chickweed; Cocklebur; Corn; Corn speedwell; Crabgrass; Dwarfdandelion; Eastern mannagrass; Eclipta; Fall panicum; Falsedandelion; Falseflax, smallseed; Field pennycress; Fleabane, annual; Fleabane, hairy (Conyza bonariensis); Fleabane, rough; Foxtail; Goatgrass, jointed; Grain sorghum (milo); Groundsel, common; Itchgrass; Lambs quarters; Little barley; London rocket; Medusahead; Mustard, blue; Mustard, tansy; Mustard, tumble; Mustard, wild; Pigweed; Plains/Tickseed coreopsis; Prickly lettuce; Ragweed, common; Rye; Ryegrass; Sandbur, field; Shattercane; Shepherd’s purse; Signalgrass, broadleaf; Smartweed, ladysthumb; Smartweed, Pennsylvania; Speedwell, purslane; Sprangletop; Spurge, prostrate; Spurge, spotted; Spurry, umbrella; Stinkgrass; Sunflower; Texas panicum; Virginia pepperweed; Wheat; Wild oats; Witchgrass; Woolly cupgrass: When applying with field broadcast equipment (aerial applications or boom sprayers using flat-fan nozzles), these species will be controlled or partially controlled using 1 pint of Glyphosate 4 per acre. Applications must be made using 3 to 10 gallons of carrier volume per acre. Nozzles that ensure thorough coverage of foliage should be used, and treatment should be made when weeds are in an early growth stage.

Horseweed/Marestail (Conyza canadensis): Resistance to some biotypes has been observed. If users encounter resistant biotypes, they should contact their local extension service for tank mix recommendations.

Restricted Entry Interval

12 hours