Captaf - Captan 50% WP - Rallis India
Rallis Captaf is a contact fungicide containing Captan 50% w/w WP. Its Indian label covers downy mildew in grapes; early and late blight in potato and tomato; brown rot in cherry; and scab in apple. Every registered row specifies 2.5 kg formulation/ha in 750-1000 L water/ha, a 24-hour re-entry period and 1-2 foliar sprays depending on disease pressure. The label shows the PHI as “-”, so no zero-day waiting period should be claimed.
Item description
Rallis Captaf Fungicide: Product Overview
Rallis Captaf is a wettable-powder contact fungicide containing Captan 50% w/w WP. The approved Indian label lists it for specific fungal diseases in grapes, potato, cherry, tomato and apple.
Captaf is classified by FRAC as Group M04, a phthalimide fungicide with multi-site contact activity. As a contact product, it depends on a properly mixed spray and thorough coverage of the target crop surface. It should not be presented as a systemic, curative or eradicant fungicide.
All five registered rows use the same hectare direction: 1.25 kg active ingredient/ha, equal to 2.5 kg formulation/ha, diluted in 750-1000 L water/ha. The label calls for foliar application using a high-volume sprayer, with 1-2 sprays depending on disease pressure. Do not turn these directions into an unsupported universal per-litre, per-pump or per-acre dose.
Why Choose Captaf?
- Verified formulation: Captan 50% w/w in a wettable-powder formulation.
- Contact multi-site classification: FRAC places Captan in Group M04.
- Five label-listed crops: grapes, potato, cherry, tomato and apple.
- Specified disease uses: downy mildew, early and late blight, brown rot and apple scab, matched crop by crop.
- Clear application table: the official label supplies formulation rate, water volume, crop stage, re-entry period and spray frequency.
Technical Specifications
| Brand | Rallis Captaf |
| Active Ingredient | Captan 50% w/w |
| Formulation | WP - wettable powder |
| Fungicide Type | Contact fungicide |
| FRAC Group | M04 - multi-site contact activity |
| Chemical Group | Phthalimide |
| Registered Crops | Grapes, potato, cherry, tomato and apple |
| Current Storefront Selection | 500 g; preserve backend commercial data exactly |
How Captaf Works
- Contact placement: the spray deposit remains on treated plant surfaces rather than moving systemically through the crop.
- Multi-site activity: FRAC classifies Captan in M04, indicating contact activity at multiple fungal sites rather than one single target site.
- Coverage-dependent protection: correct dilution, agitation, calibrated equipment and uniform high-volume coverage are important for a contact wettable powder.
- Resistance stewardship: multi-site classification does not justify claims that resistance is impossible. Follow the label and use a crop- and disease-appropriate programme.
Registered Crops, Diseases, Dose, Water and PHI
| Crop | Target Disease | Active Dose | Formulation | Water | Re-entry | PHI |
|---|---|---|---|---|---|---|
| Grapes | Downy mildew | 1.25 kg a.i./ha | 2.5 kg/ha | 750-1000 L/ha | 24 hours | Not stated (-) |
| Potato | Early blight and late blight | 1.25 kg a.i./ha | 2.5 kg/ha | 750-1000 L/ha | 24 hours | Not stated (-) |
| Cherry | Brown rot | 1.25 kg a.i./ha | 2.5 kg/ha | 750-1000 L/ha | 24 hours | Not stated (-) |
| Tomato | Early blight and late blight | 1.25 kg a.i./ha | 2.5 kg/ha | 750-1000 L/ha | 24 hours | Not stated (-) |
| Apple | Scab | 1.25 kg a.i./ha | 2.5 kg/ha | 750-1000 L/ha | 24 hours | Not stated (-) |
PHI = pre-harvest interval. A dash on the source label means no numerical PHI is stated; it must not be rewritten as zero days. The physical Indian pack label is the final authority.
Application Guide
- Apply as a foliar spray using a high-volume sprayer, from the vegetative to reproductive crop stage.
- Use the recommended dose and dilute it in the full 750-1000 L water/ha. Keep the wettable powder uniformly suspended during application.
- The label directs application as soon as disease appears, preferably in the morning or evening.
- Use 1-2 foliar sprays depending on disease pressure. Do not invent a fixed interval where the label does not provide one.
- Do not spray during rainy, windy or hot sunny conditions. Do not apply during crop maturity or just before harvest.
- Do not use on crops or diseases outside the registered table. Avoid use near aquaculture.
Resistance Management and Recommendations
- FRAC classifies Captan as M04. Multi-site fungicides are valuable tools, but the classification is not a guarantee that resistance can never develop.
- Choose any alternate fungicide only where its own Indian label covers the same crop and disease. Match dose, water, timing and PHI to that separate label.
- The Related items below contain Captan and are similarity alternatives, not mode-of-action rotations.
- The Upsell items are mechanism-distinct standalone alternatives for selected label-matched downy mildew or blight uses. They are not tank-mix instructions and should not be applied simultaneously merely because they are displayed together.
Safety and Environmental Precautions
- Wear the protective clothing and equipment specified on the current label while mixing and spraying. Avoid inhalation and contact with skin and eyes.
- Do not eat, drink, smoke or chew during application. Wash the body and contaminated clothing thoroughly after use.
- The label warns of skin, eye and upper-respiratory irritation; nausea, vomiting and headache may occur. Seek medical attention after suspected exposure and show the label.
- No specific antidote is listed; treatment is symptomatic and supportive under medical supervision.
- Captan 50% WP is toxic to fish and other aquatic animals, toxic to bees, and hazardous to earthworms and other beneficial arthropods. Keep it away from water bodies and avoid application while bees are actively foraging.
- Store locked in the original labelled container in a cool, dry, well-ventilated place away from children, food and animal feed.
Frequently Asked Questions
What does Rallis Captaf contain?
It contains Captan 50% w/w in a wettable-powder formulation.
Is Captaf systemic?
No. The Indian label identifies it as a contact fungicide, and FRAC places Captan in multi-site Group M04.
What is the registered Captaf dose?
Every listed crop row uses 2.5 kg formulation/ha in 750-1000 L water/ha. Do not infer a universal pump dose without a label-supported conversion.
Does the dash in the PHI column mean zero days?
No. It means a numerical PHI is not stated in the source table. Follow the current physical label and local professional advice.
Can the recommended products be mixed with Captaf?
No such tank mix is recommended here. Related and Upsell items are standalone alternatives subject to their own labels.
Safety Disclaimer
Always read and follow the current Rallis Captaf label and leaflet. The physical pack is the final authority for crop, disease, dose, water volume, timing, frequency, re-entry, PHI, PPE, first aid, environmental precautions, storage and disposal. This page does not replace the label, local restrictions or qualified agronomic advice.
Quick Facts
Watering
Twice a week
Sunlight
Indirect light
Humidity
High 60-80%
Temperature
18-27°C