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



Galigan H2O is an effective herbicide for postemergence and preemergence control of certain broadleaf weeds in permanently established eucalyptus (E. viminalis, E. pulverulenta, E. camaldulensis) plantings.

In new plantings, Galigan H2O should be applied immediately prior to or immediately following transplanting of dormant eucalyptus seedlings. In established plantings, Galigan H2O may be applied postemergence (over-the-top) or be post-directed to the base of the eucalyptus tree. Applications must only be made prior to bud break to avoid possible phytotoxicity to the eucalyptus foliage. Applications made after bud break may result in injury to the eucalyptus plant and are not recommended.


Apply 2 to 3 pints (1.0 to 1.5 lbs. active) of Galigan H2O per broadcast acre for preemergence and postemergence weed control. The addition of 1 quart of an 80% active nonionic surfactant per 100 gallons of spray mix will assist in spray coverage and wetting of weeds for postemergence control.


When Galigan H2O is applied preemergence or postemergence to weed seedlings (not exceeding 6-leaf stage) at recommended dosages the broadleaf weeds listed are controlled.


For optimum weed control, Galigan H2O should be applied prior to weed emergence. Postemergence applications should be applied to seedling weeds (up to the 6-leaf stage). Applications must be made prior to bud break of either transplants or established eucalyptus trees.

Galigan H2O should be applied at 20 to 40 psi in a minimum of 20 gallons of water per acre depending upon density of emerged weeds. Spray volume should be increased as weed height and density increase. Use a low-pressure sprayer equipped with flat fan nozzles. Spray equipment should be calibrated carefully before each use.


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

- Galigan H2O should only be applied to dormant healthy eucalyptus stock.

- Do not apply more than 3 pints (1.5 lbs. active) per treated acre as a result of single or more than 9 pints (4.5 lbs. active) per acre per season as a result of multiple applications.


- Filaree, Broadleaf; Filaree, Redstem; Filaree, Whitestem: Galigan H2O at the 3 pint rate (1.5 lbs. active) will provide control of filaree up to the 6-leaf stage.

Restricted Entry Interval

24 hours