ENVIRONMENTAL SCIENCE U.S., LLC · Iprodione 23.1%; Trifloxystrobin 1.44% · EPA Reg 101563-421 · FUNGICIDE
Document last checked 2021-05-06
According to the label From the product label
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Interface Stressgard is a Group 2 | 11 fungicide designed to enhance the color and density of turfgrass while providing protection against stress and controlling various turfgrass diseases. The active ingredients are triadimefon-N (23.53%) and tribuzole (1.44%). It is used on turfgrass to control diseases such as Brown Patch, Dollar Spot, Snow Mold, Fusarium Blight, Pythium Blight, and Curvularia Leaf Spot. Applications are intended for outdoor turfgrass areas. The product can be applied as a foliar spray or through irrigation. When applying, avoid drift to non-target areas like water bodies or residential lawns. Users should follow specific mixing instructions based on the target disease and use appropriate PPE, including long-sleeved shirts, long pants, and chemical-resistant gloves. Note that the product is not registered for use in California to control certain diseases. Always follow the specific rate and dilution instructions provided in the turf direction section for the specific disease being targeted.
Pests covered (22)
Brown PatchDollar SpotSnow MoldFusarium BlightPythium BlightLarge PatchCurvularia Leaf SpotLEAF SPOT (BIPOLARIS)LEAF SPOT (HELMINTHOSPORIUM)NECROTIC RING SPOT (LEPTOSPHAERIA)ANTHRACNOSE (COLLETOTRICUM)MELTING OUT (DRECHSLERA POAE)BROWN PATCH (RHIZOCTONIA)LARGE PATCH (RHIZOCTONIA)MELTING-OUT (HELMINTHOSPORIUM)PINK PATCH (CORTICIUM)RED THREAD (PINK PATCH) (CORTICIUM FUCIFORME)FUSARIUM PATCH (PINK SNOW MOLD) (FUSARIUM NIVALE)GRAY SNOWMOLD (TYPHULA BLIGHT)RUSTDOLLAR SPOT (SCLEROTINIA)CURVULARIA
Areas treatable (8)
TurfgrassORNAMENTAL TURF (GOLF COURSES) (FOLIAR TREATMENT)ORNAMENTAL TURF (GOLF FAIRWAYS) (FOLIAR TREATMENT)ORNAMENTAL TURF (GOLF GREENS) (FOLIAR TREATMENT)ORNAMENTAL TURF (GOLF TEES) (FOLIAR TREATMENT)TANK MIXORNAMENTAL TURF (GROWN FOR SOD)ORNAMENTAL TURF (FOLIAR TREATMENT)
How to treat each type of area 7
Turfgrass
| Target pest |
Location |
Rate |
Unit |
Dilution |
Label notes |
| Brown Patch |
Outdoor |
3 to 5 |
fl oz/1,000 sq ft |
|
Repeat at 14 to 21 day interval as long as needed. |
| Dollar Spot |
Outdoor |
3 to 5 |
fl oz/1,000 sq ft |
|
Repeat at 14 to 21 day interval as long as needed. |
| Snow Mold |
Outdoor |
0.5 to 5 |
gallons of water/1,000 sq ft |
0.5 to 5 fl oz per 1,000 sq ft |
Apply with sufficient water to ensure coverage. Do not allow spray to stand for longer than 2 hours. |
| Fusarium Blight |
Outdoor |
4 to 7 |
fl oz/1,000 sq ft |
|
Repeat at 14 to 21 day interval as long as needed. |
| Pythium Blight |
Outdoor |
4 to 7 |
fl oz/1,000 sq ft |
|
Repeat at 14 to 21 day interval as long as needed. |
| Large Patch |
Outdoor |
4 |
fl oz/1,000 sq ft |
|
Make first application when conditions are favorable; repeat as necessary. |
| Curvularia Leaf Spot |
Outdoor |
4 to 7 |
fl oz/1,000 sq ft |
|
Repeat at 14 to 21 day interval as long as needed. |
Mixing instructions 1
| For pests |
Location |
Label notes |
| General Turfgrass |
Outdoor |
Use 0.5 to 5 gallons of water per 1,000 sq ft for foliar spray. |
Worker safety
Re-entry interval (REI)
24
PPE required
Long-sleeved shirt and long pants; chemical-resistant gloves (barrier type, nitrile, butyl, or neoprene); protective eyewear (goggles or face shield) if handling concentrated product.
Timing & weather
- Do not allow spray mixture to stand for longer than 2 hours.
- Avoid application if rain is expected shortly after application.
Use restrictions 5
- Not registered for use in California to control certain diseases.
- Do not apply to areas where water enters treated areas within the restricted entry interval.
- Do not apply to residential lawns or non-target areas.
- Do not exceed 6 fl oz of product per 1,000 sq ft in a single application.
- Do not exceed 3 fl oz of product per 1,000 sq ft per year with a maximum of 6 applications.
Active ingredient
Iprodione 23.1%; Trifloxystrobin 1.44%
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