CaroVail · Chlorothalonil 54.0% · EPA Reg 66222-276 · Fungicide
Document last checked 2026-05-30
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Bravo Weather Stik is a fungicide formulated as a suspension concentrate (SC) containing 54.0% Chlorothalonil. It is used for the control of various plant diseases across a wide range of crops, including asparagus, beans (snap and dry), blueberries, brassicas, and carrots. The product is applied via ground, air, or chemigation. It is designed to be used in integrated pest management (IPM) programs. When applying, ensure thorough coverage. Note that the product can be toxic to aquatic invertebrates and wildlife; avoid direct application to water or areas where surface water is present. For application via irrigation systems, specific hardware like check valves and pressure switches are required to prevent back-siphoning. Users must follow specific PPE requirements, including long-sleeved shirts, long pants, chemical-resistant gloves, and shoes plus socks. A dust/mist filtering respirator is required if using high-pressure, hand-wound sprayers.
Pests covered (18)
Cercospora blight (C. asparagi)Purple spot (Pleospora herbarum)Rust (Puccinia asparagi)Rust (Uromyces appendiculatus)Botrytis blight (gray mold) (B. cinerea)Anthracnose (Colletotrichum lindemuthianum)Ascochyta blight (A. phaseolorum)Cercospora leaf blotch (C. cucumerina)Downy mildew (Phytophthora nicotianae)Anthracnose (ripe rot) (C. gloeosporioides)Mummy berry (V. maclurei)Rust (Puccinia vaccinii)Septoria leaf spot (Septoria alternaria)Alternaria leaf spot (Alternaria spp.)Downy mildew (Peronospora parasitica)Ring spot (California only)Alternario leaf blight (A. dauci)Cercospora leaf spot (C. carotae)
Areas treatable (6)
AsparagusBean (Snap)Beans (Dry)BlueberriesBrassica, Head and StemCarrot
How to treat each type of area 19
Asparagus
| Target pest |
Location |
Rate |
Unit |
Dilution |
Label notes |
| Cercospora blight (C. asparagi) |
Outdoor |
2 to 4 |
pt product/A (lb ai/A) |
In sufficient water |
Use water volumes of 25 to 50 gallons per acre. Repeat applications at 14- to 28-day intervals. |
| Purple spot (Pleospora herbarum) |
Outdoor |
2 to 4 |
pt product/A (lb ai/A) |
In sufficient water |
Use water volumes of 25 to 50 gallons per acre. Repeat applications at 14- to 28-day intervals. |
| Rust (Puccinia asparagi) |
Outdoor |
2 to 4 |
pt product/A (lb ai/A) |
In sufficient water |
Use water volumes of 25 to 50 gallons per acre. Repeat applications at 14- to 28-day intervals. |
Bean (Snap)
| Target pest |
Location |
Rate |
Unit |
Dilution |
Label notes |
| Rust (Uromyces appendiculatus) |
Outdoor |
1 to 3 |
pt product/A (lb ai/A) |
In sufficient water |
Begin applications during early bloom stage or when disease first threatens. Repeat as necessary (min 7 day interval). |
| Botrytis blight (gray mold) (B. cinerea) |
Outdoor |
3 |
pt product/A (lb ai/A) |
In sufficient water |
Repeat as necessary (min 7 day interval). |
Beans (Dry)
| Target pest |
Location |
Rate |
Unit |
Dilution |
Label notes |
| Anthracnose (Colletotrichum lindemuthianum) |
Outdoor |
1 to 2 |
pt product/A (lb ai/A) |
In sufficient water |
Begin applications at first onset of disease. Repeat at 7- to 10-day intervals (min 7 day interval). |
| Ascochyta blight (A. phaseolorum) |
Outdoor |
1 to 2 |
pt product/A (lb ai/A) |
In sufficient water |
Begin applications at first onset of disease. Repeat at 7- to 10-day intervals (min 7 day interval). |
| Cercospora leaf blotch (C. cucumerina) |
Outdoor |
1 to 2 |
pt product/A (lb ai/A) |
In sufficient water |
Begin applications at first onset of disease. Repeat at 7- to 10-day intervals (min 7 day interval). |
| Downy mildew (Phytophthora nicotianae) |
Outdoor |
1 to 2 |
pt product/A (lb ai/A) |
In sufficient water |
Begin applications at first onset of disease. Repeat at 7- to 10-day intervals (min 7 day interval). |
| Rust (Uromyces appendiculatus) |
Outdoor |
1 to 2 |
pt product/A (lb ai/A) |
In sufficient water |
Begin applications at first onset of disease. Repeat at 7- to 10-day intervals (min 7 day interval). |
Blueberries
| Target pest |
Location |
Rate |
Unit |
Dilution |
Label notes |
| Anthracnose (ripe rot) (C. gloeosporioides) |
Outdoor |
3 to 4 |
pt product/A (lb ai/A) |
In sufficient water |
Begin applications at budbreak (green tip) and repeat at 10-day intervals. Use 20 to 100 gallons per acre. |
| Mummy berry (V. maclurei) |
Outdoor |
3 to 4 |
pt product/A (lb ai/A) |
In sufficient water |
Begin applications at budbreak (green tip) and repeat at 10-day intervals. Use 20 to 100 gallons per acre. |
| Rust (Puccinia vaccinii) |
Outdoor |
3 to 4 |
pt product/A (lb ai/A) |
In sufficient water |
Begin applications at budbreak (green tip) and repeat at 10-day intervals. Use 20 to 100 gallons per acre. |
| Septoria leaf spot (Septoria alternaria) |
Outdoor |
3 to 4 |
pt product/A (lb ai/A) |
In sufficient water |
Begin applications at budbreak (green tip) and repeat at 10-day intervals. Use 20 to 100 gallons per acre. |
Brassica, Head and Stem
| Target pest |
Location |
Rate |
Unit |
Dilution |
Label notes |
| Alternaria leaf spot (Alternaria spp.) |
Outdoor |
1 |
pt product/A (lb ai/A) |
In sufficient water |
Begin applications after transplants are in field or shortly after emergence. Repeat at 7- to 10-day intervals. |
| Downy mildew (Peronospora parasitica) |
Outdoor |
1 |
pt product/A (lb ai/A) |
In sufficient water |
Begin applications after transplants are in field or shortly after emergence. Repeat at 7- to 10-day intervals. |
| Ring spot (California only) |
Outdoor |
2 |
pt product/A (lb ai/A) |
In sufficient water |
Begin applications after transplants are in field or shortly after emergence. Repeat at 7- to 10-day intervals. |
Carrot
| Target pest |
Location |
Rate |
Unit |
Dilution |
Label notes |
| Alternario leaf blight (A. dauci) |
Outdoor |
1 to 2 |
pt product/A (lb ai/A) |
In sufficient water |
Start applications when disease threatens and repeat at 7- to 10-day intervals. |
| Cercospora leaf spot (C. carotae) |
Outdoor |
1 to 2 |
pt product/A (lb ai/A) |
In sufficient water |
Start applications when disease threatens and repeat at 7- to 10-day intervals. |
Mixing instructions 1
| For pests |
Location |
Label notes |
| General |
Outdoor |
Use in sufficient water to obtain adequate coverage. |
Worker safety
Re-entry interval (REI)
12 hours (for certain crops/conditions, check specific section; general REI not explicitly listed in summary but mentions 12 hour interval for some applications)
PPE required
Long-sleeved shirt, long pants, chemical-resistant gloves made of any waterproof material, shoes plus socks. A dust/mist filtering respirator must be worn if using high-pressure, hand wound sprayer.
Timing & weather
- Avoid application when wind speeds are high to prevent drift. Avoid application during temperature inversions.
Use restrictions 12
- Do not apply more than 12 pints of Bravo Weather Stik (9.0 lb ai) per acre during each growing season for Asparagus.
- Do not apply more than 11.7 pints of Bravo Weather Stik (8.8 lb ai) per acre during each growing season for Brassica.
- Do not apply more than 20 pints of Bravo Weather Stik (15 lb ai) per acre during each growing season for Carrots.
- Do not apply more than 12 pints of Bravo Weather Stik (9.0 lb ai) per acre during each growing season for Snap Beans.
- Do not apply more than 8 pints of Bravo Weather Stik (6 lb ai) per acre during each growing season for Dry Beans.
- Do not apply more than 12 pints of Bravo Weather Stik (9.0 lb ai) per acre during each growing season for Blueberries.
- Do not apply within 190 days (120 days in CA and AZ) of the harvest of spears in the following season for Asparagus.
- Do not apply within 7 days of harvest for Snap Beans.
- Do not apply within 14 days before harvest for Dry Beans.
- Do not apply full bloom (except for foliar use after harvest) or within 42 days of harvest for Blueberries.
- Do not apply within 7 days of harvest for Brassica.
- Do not apply the day of harvest for Carrots.