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  • HERBICIDE Order Form

    Forest Preserves of Cook County
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  • Please allow 2 weeks for order fulfillment.

  • Available Herbicides and Adjuvants

    Herbicide Treatment Guidelines

    ROUNDUP CUSTOM (Aquaneat, Rodeo) aquatic Glyphosate

    VASTLAN Triclopyr choline, aquatic

    ELEMENT 4 (Tahoe 4, Garlon 4) Triclopyr

    INTENSITY Clethodim

    MILESTONE Aminopyralid. Order ½ (0.5) or full (1.0) for # (replaces Transline)

    METHYLATED SEED OIL surfactant for use with Intensity ONLY

    BASAL BARK OIL with Dye (Premier Blue, AxIt, Arborchem) for use with Element 4 for stump treatment or basal barking. Shortfilled to 1.875 gallons to allowing mixing of herbicide (Element 4) directly into container. Premixed with colorant. 

    COLORANT water based dye required for all herbicide applications. Do NOT use in basal bark oil. The basal oil is predyed. 

    SURFACTANT (Liberate) for use with Vastlan, Roundup Custom, Milestone 

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