General Information


Galigan H2O may be applied for preemergence and postemergence weed control. All directions and restrictions for use found in the general use information and specific crop sections of the label must be followed.


In order for Galigan H2O to provide maximum preemergence activity: Prior to application, the bed or soil surface should be smooth and free of crop and weed trash (decaying leaves, clippings, dead weeds, etc.). Leaves and trash may be removed by blowing the area to be treated or by thoroughly mixing the trash into the soil through cultivation prior to herbicide application. After application, at least one-quarter inch (1/4 inch) of irrigation or rainfall should occur within 3 or 4 weeks after application. The best results from Galigan H2O are from applications to established beds or soil surfaces that are left undisturbed during the time period for which weed control is desired. Cultural practices that result in redistribution or disturbance of the soil surface after treatment will decrease the herbicidal effectiveness of Galigan H2O. Cutting water furrows or cultivations that mix untreated soil into treated areas will also reduce the effectiveness of the treatment.

Selective weed control: Some products listed on the label provide selective weed control. Selective weed control occurs when the target weeds are killed without impact to desirable crops or vegetation.


Select proper application rates based on soil conditions, weed spectrum, and desired period of residual weed control.

Preemergence Application: Where rate ranges are given, use the lower rate in the rate range on coarse textured soils with less than 1% organic matter. Use higher rates in the rate range on medium to fine textured soils, soils containing greater than 1% organic matter, or where a longer period of residual weed control is desired.

Postemergence Application: Where a rate range is given, use higher rate in rate range for heavy weed infestations, weeds in advanced stages of growth, or where a longer period of residual weed control is desired.

Limitations, Restrictions, and Exceptions


Ground Or Aerial Application Of Galigan H2o On Fallow Beds

General Information

Galigan H2O is effective as a preemergence and/or postemergence herbicide when used alone or in a tank mix combination with glyphosate for the control of winter annual broadleaf weeds to be planted to the crops listed.

IMPORTANT: The fallow beds should be worked thoroughly to a depth of at least 2 1/2 inches prior to planting; weed control should not be expected following breaking of the soil surface. FAILURE TO ACHIEVE THOROUGH AND COMPLETE INCORPORATION OR TO FOLLOW THE RECOMMENDED TREATMENT-PLANTING INTERVAL MAY RESULT IN STAND REDUCTION AND/OR VIGOR REDUCTION OF THE PLANTED CROP.

Crop injury may be enhanced if newly seeded crops or transplants are under stress due to drought, flooding, excessive fertilizer or soil salts, low soil temperatures, wind injury, hail, frost damage, injury from previously applied pesticides, or injury due to insects or diseases.



Galigan H2O may be applied at 0.5 to 1 pint (0.25 to 0.5 lb. active) per broadcast acre. The lower rate (0.5 pint per acre) should provide up to 4 weeks of preemergence control of susceptible weeds and provide postemergence control of susceptible weeds (up to 4-leaf stage). The higher rate (1 pint per acre) should provide preemergence control of susceptible weeds for up to 8 weeks and postemergence control of susceptible weeds (up to 6-leaf stage). Best preemergence control is achieved when irrigation or rainfall occurs within 3 to 4 weeks following application.


Galigan H2O herbicide should provide preemergence and postemergence control of the weeds listed when used at recommended dosages and weed stage.

Postemergence: Thorough spray coverage is essential to maximize the postemergence activity of Galigan H2O. For postemergence control when applied by air, a tank mixture of Galigan H2O with glyphosate is recommended.

Galigan H2O is a contact herbicide, therefore, coverage is essential for acceptable postemergence control. If dense weed populations, oversized weed seedlings, volunteer grains, annual grasses, or unfavorable environmental conditions exist, a tank mixture of Galigan H2O with glyphosate for postemergence control is recommended.


Galigan H2O can be tank mixed with glyphosate to obtain postemergence control of annual grassy weeds, volunteer grains, and broadleaf weeds. Tank mix 0.5 to 1 pint (0.25 to 0.5 lb. active) of Galigan H2O with labeled rates of glyphosate. Apply at the recommended rates and growth stages to susceptible weed species in a manner consistent with the respective labels.



Galigan H2O should be applied in a minimum of 20 gallons of water per acre. The volume of water used should be increased as the weeds become taller and more dense. Use a low-pressure sprayer equipped with flat fan nozzles. Spray equipment should be calibrated carefully before each use.


Galigan H2O should be applied using swirl jet or hollow cone nozzles and a spray pressure less than 40 psi to deliver a minimum spray volume of 10 gallons per acre (minimum 5 GPA for Galigan H2O / glyphosate tank mix).

Applications should be made at a height of 6 to 10 feet above the soil surface. It is suggested that the nozzles on the spray booms should not be placed any closer to the wing or rotor tips than 3/4 of the span; this will minimize the formation of spray or wing tip vortice roll. Nozzles should be spaced and positioned to produce a uniform spray pattern and to minimize or eliminate the formation of droplets 100 microns or less in diameter.

IMPORTANT: Aerial applicators must be familiar with the label and follow the use precautions. Spraying Galigan H2O in a manner other than as recommended is done at the user’s risk. Users are responsible for all loss or damage that results from such spraying. In addition, aerial applicators should follow all applicable state and local regulations and ordinances. In interpreting the label and local regulations, the most restrictive situations should apply to avoid drift hazards.


In addition to the following, also observe GENERAL USE RESTRICTIONS listed elsewhere on the label.

- Read and observe all label directions before using. When tank mixing, always read all individual manufacturers’ labels. In interpreting all labels for the tank mixture, the most restrictive situations must apply.

- Do not apply more than 1 pint (0.5 lb. active) of Galigan H2O per acre per fallow season.

Restricted Entry Interval

24 hours