According to the label From the product label
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EPA registration data for Reg. 279-9564 →
Rovral 4F is a flowable fungicide containing 41.6% Iprodione. It is used to control various fungal diseases including damping-off, scab, alternaria leaf spot, and various rots in crops such as cotton, peanuts, grapes, stone fruits, berries, and vegetables. It can be applied via sprayer, irrigation systems, or through canopy/soil drenching. The product is designed for use on both indoor and outdoor agricultural settings where irrigation or spraying equipment is available. When handling, users must wear personal protective equipment (PPE) including chemical-resistant gloves, long-sleeved shirts, long pants, and protective footwear. Avoid contact with skin and eyes; if contact occurs, rinse thoroughly with water. Do not apply during temperature inversions or high wind speeds. Always follow specific dilution rates and application timings provided for each specific crop to ensure efficacy and prevent crop damage.
Pests covered (5)
Damping-offScabAlternaria leaf spotBlack rotWhite mold
Areas treatable (5)
CottonAlmondsGrapesBroccoliPotatoes
How to treat each type of area 6
Cotton
| Target pest |
Location |
Rate |
Unit |
Dilution |
| Damping-off |
Outdoor |
0.5-2.0 |
fluid ounces per acre |
36-150.4 |
| Scab |
Outdoor |
1.0-2.0 |
fluid ounces per acre |
36-150.4 |
Almonds
| Target pest |
Location |
Rate |
Unit |
| Alternaria leaf spot |
Outdoor |
1.0 |
pints per acre |
Grapes
| Target pest |
Location |
Rate |
Unit |
| Alternaria leaf spot |
Outdoor |
1.0-2.0 |
pints per acre |
Broccoli
| Target pest |
Location |
Rate |
Unit |
| Black rot |
Outdoor |
2.0 |
pints per acre |
Potatoes
| Target pest |
Location |
Rate |
Unit |
| White mold |
Outdoor |
1.0-2.0 |
pints per acre |
Mixing instructions 1
| For pests |
Label notes |
| General |
Can be used in tank mixes with certain fungicides like Alternaria panacea or Scytolon; check compatibility. |
Worker safety
PPE required
Chemical-resistant gloves, long-sleeved shirts, long pants, chemical-resistant apron, and chemical-resistant footwear. Protective eyewear is recommended.
Timing & weather
- Do not apply during temperature inversions.
- Avoid application during high wind speeds.
- Apply at specific growth stages as noted for each crop (e.g., before bloom for certain fruits).
Use restrictions 4
- Do not apply during temperature inversions.
- Do not apply when wind speeds exceed 10 mph.
- Do not contaminate water sources.
- Do not reuse empty containers for anything other than landfill or recycling.