General Information


Broclean is formulated as an emulsifiable concentrate of octanoic acid ester of bromoxynil containing the equivalent of 2.0 pounds of bromoxynil per gallon.

Broclean is a selective postemergence herbicide for control of important broadleaf weeds infesting field corn, popcorn, sorghum (grain and forage), barley, oats, rye, triticale, wheat, seedling alfalfa, flax, onions (dry bulb), garlic, mint (established peppermint and spearmint), Conservation Reserve Program (CRP) areas, grasses grown for seed or sod production, non-residential turfgrass, and non-cropland and industrial sites. Optimum weed control is obtained when Broclean is applied to actively growing weed seedlings. Broclean is primarily a contact herbicide, therefore thorough coverage of the weed seedlings is essential for optimum control. Broclean 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 Broclean 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.


When properly utilized, timely cultivations of row crops may aid overall weed control efforts as well as crop growth. However, cultivation BEFORE or DURING Broclean applications may place target weeds under stress, resulting in erratic weed control. Whenever Broclean is being utilized in an overall weed control program, plan to postpone any anticipated cultivations until 5 to 7 days after application to ensure best performance.


Use a standard herbicide boom sprayer that provides uniform and accurate application. Sprayer should be equipped with screens no finer than 50 mesh in the nozzle tips and in-line strainers.

Select a spray volume and delivery system that will ensure thorough and uniform spray coverage. For optimum spray distribution and thorough coverage, use of flat fan nozzles (maximum tip size 8008) with a minimum spray pressure of 40-60 psi are recommended. Other nozzle types and lower spray pressures that produce coarse spray droplets may not provide adequate coverage of the weeds to ensure optimum control. Raindrop nozzles are not recommended as weed control with Broclean may be reduced. A spray volume of 10.0 to 20.0 gallons per acre (GPA) is needed for optimum spray coverage. A minimum of 5.0 GPA with a minimum spray pressure of 50 psi and a maximum ground speed of 10 mph may be used with higher speed, low volume ground application if ground terrain, crop and weed density allow effective spray distribution.

When using higher speed equipment a maximum speed of 10 mph is suggested if field conditions cause excessive boom movement during application which results in poor spray coverage. Ground applications made when dry, dusty field conditions exist may provide reduced weed control in wheel track areas. Applications using less than 10.0 gallons per acre may result in reduced weed control.

When weed infestations are heavy, use of higher spray volumes and spray pressure will be helpful in obtaining uniform weed coverage. When corn or grain sorghum are large enough to interfere with the spray pattern, drop nozzles should be used to obtain uniform weed coverage. If you are unsure of the infestation level or the size of the crop, consult your local extension service.

Do not apply when winds are gusty or when other conditions favor poor spray coverage and/or off-target spray movement.


Use orifice discs, cores and nozzle types and arrangements that will provide for optimum spray distribution and maximum coverage. In general a minimum spray volume of 5 GPA and a maximum pressure of 40 psi are recommended.

Do not apply during inversion conditions, when winds are gusty or when other conditions favor poor spray coverage and/or off target spray movement. Off target spray movement can be minimized by increasing the spray volume per acre and not applying when winds exceed 10 mph.


Only the following uses referenced in the label are registered for use in California: seedling alfalfa, small grains (wheat, barley, oats, rye and triticale), flax, corn (post emergence application only), sorghum (post emergence application only), onions (dry bulb), garlic; chemigation in seedling alfalfa, barley, oats, rye, triticale, wheat, onions (dry bulb) and garlic; 2,4-D and MCPA tank mixtures in barley, oats, rye, triticale, wheat; 2,4-D and atrazine tank mixtures in corn and sorghum; 2,4-DB tank mixture in seedling alfalfa; grass for seed and sod production, non-residential turfgrass; and non-cropland and industrial sites. All applications must be made with a minimum spray volume of 10 GPA by ground or 5 GPA by air equipment.

Do not use or store near heat or open flame.

Limitations, Restrictions, and Exceptions



- Apply to corn after emergence but prior to tassel emergence.

- Apply to sorghum and sudangrass after emergence but prior to preboot stage (growth stage 4).

- Apply through automated sprinkler irrigation systems with a mechanical transfer loading system only. See MIXING, LOADING AND HANDLING INSTRUCTIONS section for complete details.


Apply to MOST SUSCEPTIBLE broadleaf weeds up to the 8 leaf stage or 4 inches in height or 2 inches in diameter, whichever comes first. Apply to SUSCEPTIBLE broadleaf weeds up to the 4 leaf stage, 2 inches in height or 1 inch in diameter, which ever comes first. Do not use chemigation for control of weeds that exceed 4 inches in height because control may be unacceptable.

RESTRICTIONS AND PRECAUTIONS: Corn (Field and Pop), Sorghum (Grain and Forage) and Sudangrass

- BROCLEAN does not control grasses. Therefore, it is recommended that a suitable grass control program be used to provide any required grass control.

- Addition of a spray additive or mixture with liquid fertilizers may cause excessive crop leaf burn.

- Seed corn producers should consult the respective seed corn company regarding tolerance of certain seed production inbred lines to BROCLEAN.

- Do not apply BROCLEAN postemergence to seed corn inbreds or popcorn prior to the 3 leaf stage of crop growth as excessive crop leaf burn may occur.

- Do not plant rotational crops until the following season.

- Do not cut crop for feed, fodder or graze within 30 days of application.

- The total cumulative rate may not exceed 0.5 lb ai bromoxynil/A (2 pints Broclean/A).

- Postemergence application prior to the 3 leaf growth stage of corn or sorghum may result in increased crop leaf burn.

- Tank mixtures with Accent/nonionic surfactant or Beacon/nonionic surfactant may result in increased initial crop leaf burn. Use of crop oil concentrate, nitrogen fertilizer solution or other adjuvants in BROCLEAN + Accent or BROCLEAN + Beacon tank mixtures may result in a further increase in crop leaf burn.

- Special care should be taken when using BROCLEAN, Rifle, Clarity or 2,4-D tank mixtures to avoid off target drift to sensitive crops.

- Tank mixtures with 2,4-D, Rifle, or Clarity can cause stalk brittleness to field corn.

Tank mixtures with 2,4-D and Rifle can cause stalk brittleness to sorghum. Winds or cultivation may cause breakage while crop is brittle.

- Follow all restrictions and precautions on the label of all products used in tank mixture with BROCLEAN.

- Do not apply BROCLEAN at any rate to sorghum after the preboot stage of growth (growth stage 4) as severe crop injury, including loss of crop yield may result.

- Do not apply the 2 pints/A rate of BROCLEAN to sorghum.

- Do not apply the BROCLEAN + Pursuit tankmix except to field corn hybrids known to possess resistance to Pursuit, or severe crop injury may result.

Restricted Entry Interval

12 hours