DoMyOwn · Thiophanate-Methyl · EPA Reg 1001-69 · Fungicide
Document last checked 2026-05-30
According to the label From the product label
These details were extracted from this product's label PDF.
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EPA registration data for Reg. 1001-69 →
3336F is a broad-spectrum systemic fungicide intended for professional use on turf and ornamental plants. The active ingredient is thiophanate-methyl (41.25%). It is used to prevent and control various diseases including anthracnose, leaf spots, rusts, smut, and various root diseases. It can be applied to turf (lawns, golf courses, athletic fields) and ornamentals (annuals, perennials, bedding plants, shrubs, and trees). Application methods include hand, mechanical, or motorized sprayer, as well as pressurized drenched systems (flood, sprinkler, or drip irrigation). When using irrigation systems, ensure the system is designed for chemical application and does not contaminate public water supplies. For turf, it can be applied as a foliar spray or through irrigation. Note that this product should not be mixed with highly alkaline materials like Bordeaux mixture or lime, as this may cause degradation. Always follow Worker Protection Standard (WPS) requirements for handling and application.
Pests covered (5)
Anthracnose, basalAnthracnose, foliarBermudagrass DeclineDollar SpotFoliar diseases (various)
Areas treatable (3)
Turf/OrnamentalsTurfNursery, Greenhouse, Landscape & Interior
How to treat each type of area 5
Turf/Ornamentals
| Target pest |
Location |
Rate |
Unit |
Label notes |
| Anthracnose, basal |
Outdoor |
4-6 |
fl oz/1,000 sq ft |
For prevention in historic areas of disease pressure, apply twice at 14 day intervals when soil temperature reaches 60°F. |
| Anthracnose, foliar |
Outdoor |
2-4 |
fl oz/1,000 sq ft |
For curative control, apply when disease first appears and continue at 14 day intervals. |
Turf
| Target pest |
Location |
Rate |
Unit |
Label notes |
| Bermudagrass Decline |
Outdoor |
4-6 |
fl oz/1,000 sq ft |
Apply in mid-July when symptoms first appear and repeat at 14 day intervals. |
| Dollar Spot |
Outdoor |
2-4 |
fl oz/1,000 sq ft |
Apply when disease first appears and continue at 14 day intervals. |
Nursery, Greenhouse, Landscape & Interior
| Target pest |
Location |
Rate |
Unit |
Label notes |
| Foliar diseases (various) |
Outdoor |
12-16 |
fl oz/100 gallons |
Apply as bud break or at first sign of disease. Repeat 7-14 day intervals. |
Mixing instructions 1
| For pests |
Location |
Amount |
Per |
Finished strength |
Label notes |
| General Ornamental/Nursery |
Outdoor |
12-16 |
fl oz |
per 100 gallons |
Do not mix with highly alkaline materials like Bordeaux mixture or lime. |
Worker safety
Re-entry interval (REI)
12
PPE required
Coveralls over long-sleeved shirt and long pants; Waterproof gloves; Chemical-resistant footwear plus socks; Chemical-resistant apron. If mixing/loading: Long sleeved shirt and long pants; Shoes plus socks; Waterproof gloves; Chemical-resistant apron.
Timing & weather
- Apply after soil temperatures reach 60°F for certain turf applications.
- Avoid application in conjunction with highly alkaline fertilizers.
Use restrictions 5
- Do not use on fruit trees or nuts intended for food or feed.
- Do not apply to fruit or nut trees other than almond, apple, pear, pecan, pistachio, apricot, cherry, nectarine, peach, plum or prune.
- Do not apply with fluid eng or winery aircraft.
- Do not apply to turf being grown for sale or other commercial use.
- Do not graze animals on treated turf.