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TM4.5

Thiophanate-Methyl 4.5

Prime Source Fungicide

Broad spectrum, systemic fungicide for the control and prevention of diseases on ornamentals and cool and warm season turfgrasses. Thiophanate-methyl (Benzimidazoles)

Item Number

Package Size

Availability

TM4.5

2 x 2.5 GAL Jug / Case

In Stock

Prime Source TM 4.5F Select Fungicide | Broad-Spectrum Disease Control


Active Ingredient: Thiophanate-methyl – 46.2%


Description:
Prime Source TM 4.5F Select is a broad-spectrum, systemic fungicide formulated to control various turfgrass and ornamental diseases. Its flowable formulation ensures excellent coverage and absorption, providing both preventive and curative disease control. The fungicide is absorbed by plant tissues and translocated to protect against fungal infections while promoting plant health.


Key Benefits:

  • Broad-Spectrum Control – Effectively manages multiple fungal diseases in turf and ornamental plants.

  • Systemic Action – Quickly absorbed and translocated within the plant for long-lasting protection.

  • Flexible Application – Can be used in rotational and tank-mix programs for resistance management.

  • Effective in Multiple Settings – Labeled for golf courses, lawns, nurseries, greenhouses, and landscape ornamentals.

Diseases Controlled:

Turfgrass Diseases:

  • Dollar Spot (Clarireedia spp.)

  • Brown Patch (Rhizoctonia solani)

  • Anthracnose (Colletotrichum cereale)

  • Gray Leaf Spot (Pyricularia grisea)

  • Snow Mold (Typhula spp., Microdochium nivale)

  • Fusarium Patch (Microdochium nivale)

  • Large Patch (Rhizoctonia solani)

  • Leaf Spot & Melting Out (Bipolaris spp., Drechslera spp.)

  • Red Thread (Laetisaria fuciformis)

  • Pink Patch (Limonomyces roseipellis)

Ornamental Plant Diseases:

  • Botrytis Blight (Botrytis cinerea)

  • Black Spot (Diplocarpon rosae)

  • Fusarium Wilt & Root Rot (Fusarium spp.)

  • Powdery Mildew (Erysiphe spp., Sphaerotheca spp.)

  • Rust Diseases (Puccinia spp.)

  • Rhizoctonia Stem Rot (Rhizoctonia solani)

  • Scab (Venturia spp.)

  • Southern Blight (Sclerotium rolfsii)

  • Volutella Blight (Volutella spp.)

Application Rates & Timing:

Turfgrass:

  • Use Rates: 2–3.5 fl. oz. per 1,000 sq. ft.

  • Apply at 14- to 21-day intervals. Use higher rates and shorter intervals under high disease pressure.

  • Can be applied with ground spray equipment or aerial applications (where labeled).

Ornamentals:

  • Foliar Application: 7.25–20 fl. oz. per 100 gallons of water. Apply every 7–14 days.

  • Drench Application: 7.5–20 fl. oz. per 100 gallons, applied to the root zone.

Restrictions & Precautions:

  • Allow at least 14 days between applications.

  • Avoid use in areas near water bodies to prevent runoff.

  • Resistance Management: Rotate with fungicides from different FRAC groups (TM 4.5F Select is in FRAC Group 1 - Methyl Benzimidazole Carbamates).

  • Do not apply to stressed turf (e.g., heat, drought, or excessive moisture).

  • Not for use on home lawns.

Safety & Handling:

  • Personal Protective Equipment (PPE):Wear long-sleeved shirt, long pants, chemical-resistant gloves, and eye protection.
    Avoid inhaling spray mist or direct skin contact.

  • Environmental Hazards:Toxic to aquatic organisms; do not apply near bodies of water.

  • Re-entry Interval (REI):12 hours for general applications.
    Restricted-entry may vary depending on state regulations—refer to the label.

  • Storage & Disposal:Store in a cool, dry place.
    Do not contaminate food, feed, or water.
    Dispose of containers per local regulations.

Conclusion:
Prime Source TM 4.5F Select is a trusted choice for turf and ornamental disease management, offering systemic and broad-spectrum protection. When used according to label directions, it provides effective, long-lasting disease control to maintain the health and aesthetics of turfgrass and ornamental plants.


It is a violation of Federal law to use this product in a manner inconsistent with its labeling.  Always consult the product label for complete application instructions and safety guidelines.  For the most accurate label information please refer to the manufacturer website.

© 2025 Clesens, Clesen PROturf Solutions & Arthur Clesen Inc. All Rights Reserved.

Arthur Clesen Inc. and Clesen PROturf Solutions is a distributor of commercial fertilizer, chemicals, grass seed, ice, melters, T&O Supplies and Irrigation Components to green industry professionals in Illinois, Indiana, Iowa, Michigan, Minnesota and Wisconsin.

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