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Last Updated: 8/7/2026

Prothioconazole 4L Select™

Active Ingredient: Prothioconazole

4 x 0.5 gal

Prothioconazole 4L Select™ provides preventive and curative control of cool- and warm-season turf diseases including dollar spot, fairy ring, brown patch, anthracnose, gray leaf spot, snow mold, and more. With its low use rates, Prothioconazole 4L Select is labeled for use on golf course turfgrass – greens, tees, fairways, and roughs.

Compare to: Densicor®

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    • Broad-spectrum control of the most common golf turf diseases.
    • Low use rates mean affordable applications.
    • Provides preventive and curative control in both cool- and warm-season turf.

  • FL TX NM AZ AK CA NV UT CO OR WA ID HI OK MT WY ND SD NE KS MN IA MO AR LA MS AL GA SC IL WI MI IN OH TN KY NC WV VA PA NY ME VT NH RI CT NJ DE MD MA DC

    Registered

    Not Registered

  • ACTIVE INGREDIENT
    41% prothioconazole

    FRAC GROUP
    3

    FORMULATION
    Suspension concentrate

    CHEMICAL FAMILY
    Triazole

    COMPARE TO
    Densicor®

    MODE OF ACTION
    Demethylation inhibitor, inhibits sterol biosynthesis in the fungal cell

    RESTRICTED USE
    No

    SIGNAL WORD
    Caution

    PACKAGING
    4 x 0.5 gal

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