General Information


Mainsail 6.0 F is an excellent disease control agent when used according to label directions for control of a broad spectrum of plant diseases. Mainsail 6.0 F is recommended for use in programs that are compatible with the principles of Integrated Pest Management (IPM), which include the use of disease resistant crop varieties, cultural practices, pest scouting and disease forecasting systems that reduce unnecessary applications of pesticides.

Mainsail 6.0 F is effective for strategic use in programs that attempt to minimize disease resistance to fungicides. Some other fungicides that are at risk from disease resistance exhibit a single-site mode of fungicidal action. Mainsail 6.0 F, with a multi-site mode of action, may be used to delay or prevent the development of resistance to single-site fungicides. Consult with your federal or state Cooperative Extension Service representatives for guidance on the proper use of Mainsail 6.0 F in programs that seek to minimize the occurrence of disease resistance to other fungicides.


Use of this product on home lawns is prohibited.

Agricultural Use Sites Only (sod farms, farms, forests, nurseries and greenhouses): This product must not be applied within 150 feet (for aerial applications) or 25 feet (for ground applications) of marine/estuarine water bodies unless there is an untreated buffer area of that width between the area to be treated and the water body.

Do not combine Mainsail 6.0 F in the spray tank with pesticides, surfactants or fertilizers, unless prior use has shown the combination physically compatible, effective, and noninjurious under your conditions of use. Do not combine Mainsail 6.0 F with Dipel or Latron B-1956 as phytotoxicity may result from the combination when applied to some species on the label. The required amount of Mainsail 6.0 F should be added slowly into the spray tank during filling. With concentrate sprays, premix the required amount of Mainsail 6.0 F in a clean container and add to the spray tank as it is being filled. Keep agitator running when filling spray tank and during spray operations.

Limitations, Restrictions, and Exceptions


Apply in a spray to run-off, when conditions are favorable for disease development. Repeat applications at 7 to 14 day intervals until conditions are no longer favorable for disease. During periods when conditions favor severe disease incidence, generally cloudy or wet weather, apply Mainsail 6.0 F at 7 day intervals. The minimum retreatment interval is 7 days. Apply Mainsail 6.0 F to plants when both foliage and flowers are dry, or nearly dry.


- For Flowering plants: Avoid applications during bloom period on plants where flower injury is unacceptable.

Flowering Plants and Bulbs: Arabian Violet, Camellia.

Restricted Entry Interval

12 hours