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


For Use Only in Idaho, Oregon, And Washington

General Information

Galigan H2O herbicide is effective as a preemergence and/or postemergence herbicide when used alone or in a tank mix combination with glyphosate (Roundup) for the control of certain annual broadleaf weeds in a fallow land system. Galigan H2O herbicide can be used as an effective tool to reduce weed growth prior to the establishment of a dry soil mulch. Use of this product is restricted to summer fallow land that will be planted back the following year to winter wheat, barley, or oats.


Galigan H2O herbicide should be used at 0.25 to 1 pint (0.125 to 0.5 lb. active) per broadcast acre.


Galigan H2O herbicide will provide postemergence control and preemergence activity of the broadleaf weeds listed when used at recommended dosages.


The most effective postemergence weed control is achieved when Galigan H2O herbicide is applied to seedling weeds (less than 4 inches in height). Seedling weeds are controlled as they come in contact with the soil-applied herbicide during emergence.

Galigan H2O herbicide should be applied in a minimum of 20 gallons of water per acre using ground equipment or 10 gallons of water per acre by air depending upon density of emerged weeds. Use a low-pressure sprayer equipped with flat fan nozzles. Spray equipment should be calibrated before each use.


In addition to the following, also observe GENERAL USE RESTRICTIONS listed at the end of the label.

- When tank mixing, always read all individual manufacturers’ labels. In interpreting all labels for the tank mixture, the most restrictive situations must apply.

Restricted Entry Interval

24 hours