Captaf - Captan 50% WP - Rallis India
Captaf - Captan 50% WP - Rallis India
Captaf
Captan 50% WP | Contact fungicide
What it controls: Listed diseases of apple, cherry, grapes, potato and tomato.
When to use it: Use only at the crop stage and timing specified on the current label.
What to include: Match the crop, target, application method, dose, water and harvest interval.
Why Choose This Product? Key Benefits
- 🍎Fruit-crop uses: Rallis lists apple scab, cherry brown rot and grape downy mildew.
- 🥔Vegetable blight uses: Potato and tomato early and late blight are included.
- 🛡️Protective contact action: Captan protects treated surfaces rather than acting as a systemic fungicide.
- 🧬Multisite activity: FRAC M04 identifies captan’s multisite mode of action.
- 🌱Foliar and seed-dressing roles: Rallis describes both roles; each requires its own crop-specific label directions.
Technical Specifications
| Parameter | Details |
|---|---|
| Brand Name | Captaf | Rallis India |
| Technical Name | Captan 50% WP |
| FRAC MoA Code | M04 |
| Chemical Group | Phthalimide |
| Formulation | Wettable powder (WP) |
| Toxicity Label | Agricultural pesticide. Follow the hazard warnings and protective equipment on the current pack. |
How It Works: Mode of Action
- Treated surfaces are protected: Captan acts by contact on the surfaces reached by the labelled application.
- Several fungal processes are affected: Its multisite activity interferes with essential enzyme functions in the fungus.
- Infection is checked: The protective activity helps control the listed fungal diseases when used as directed.
Target Crops & Pests
The crop–target pairs below are listed by Rallis for this product. They are not a substitute for the current pack directions.
| Crop | Target Pest(s) |
|---|---|
| Apple |
|
| Cherry |
|
| Grapes |
|
| Potato |
|
| Tomato |
|
Dosage & Application Guide
The numerical entries below are formulation-level CIBRC reference data through 30 September 2025, not confirmation of the current branded pack directions. Match each crop, target, route, water volume and harvest interval to the current Indian label before use.
Dosage per Acre, Litre, & Pre-Harvest Interval (PHI)
| Crop | Dose (kg / Acre) | Water (L / Acre) | Dose (kg / Litre) | PHI (Days) |
|---|---|---|---|---|
| Apple | 1.01 2.5 kg/ha |
303.51–404.69 750–1000 L/ha |
See note* | See note* |
| Cherry | 1.01 2.5 kg/ha |
303.51–404.69 750–1000 L/ha |
See note* | See note* |
| Grapes | 1.01 2.5 kg/ha |
303.51–404.69 750–1000 L/ha |
See note* | See note* |
| Potato | 1.01 2.5 kg/ha |
303.51–404.69 750–1000 L/ha |
See note* | See note* |
| Tomato | 1.01 2.5 kg/ha |
303.51–404.69 750–1000 L/ha |
See note* | See note* |
Each listed crop–disease pair has the same formulation reference: 2.5 kg/ha in 750–1,000 L/ha. The reference provides no numerical PHI.
Separate historical Captaf catalogue reference: preventive application is stated for all five listed crop–disease programmes. For tomato early and late blight it explicitly gives 500 g per 200 L water, equivalent to 2.5 g/L. This concentration is not derived from an area dose; no water-per-area, route or numerical PHI is given for that catalogue programme. Do not automatically combine it with the generic hectare table.
Rallis describes Captaf as usable for foliar treatment and seed dressing, but the accessible product page does not pair a seed crop, seed disease or seed-treatment rate. No seed-treatment programme is supplied here.
Per-acre amounts are approximate conversions of the stated hectare rates using 1 acre = 0.40468564224 ha. The original hectare figures are retained. No per-litre or tank rate has been calculated from an area rate.
See note*: confirm the route, timing, interval, maximum applications, re-entry and crop-specific PHI on the current Captaf pack. Only tomato has an independent catalogue concentration of 500 g/200 L (2.5 g/L); other crops’ per-litre rates remain unestablished. A source dash is not a zero-day harvest interval.
How to Apply: Best Practices
- Confirm the programme: Check the current label for the exact crop, target, method and timing before preparing any treatment.
- Measure and calibrate: Measure the formulation accurately and use the label water volume with calibrated equipment. Do not substitute a tank rate from another formulation.
- Plan harvest and re-entry: Observe the crop-specific pre-harvest interval and the pack’s re-entry instructions. A missing value does not mean immediate harvest or entry.
Frequently Asked Questions
Which diseases are listed for Captaf?Apple scab, cherry brown rot, grape downy mildew, and early and late blight of potato and tomato.
Is Captaf systemic?No. Rallis describes it as a contact fungicide with protective activity.
What is the reference crop dose?The captan 50% WP formulation reference gives 2.5 kg/ha, approximately 1.01 kg/acre, in 750–1,000 L/ha for the listed rows. Match it to the current Captaf label before use.
Can I use it as a seed dresser from this guide?No seed-treatment dose or crop programme is established here. Although Rallis mentions seed dressing, obtain the current crop-specific label directions first.
Can I copy captan 50% WG harvest intervals?No. Captan 50% WG and Captaf 50% WP are different formulations. The reviewed 50% WP reference supplies no numerical PHI.
Safety & Disclaimer
Read the current Indian pack and leaflet before use. Use only the permitted crop, target, dose and application method, and observe local restrictions.
Wear the protective equipment specified on the pack. Avoid skin and eye contact, inhaling spray or dust, and eating, drinking or smoking while handling.
Prevent drift and runoff into water bodies. Keep people and animals away as required by the label; store in the original labelled container away from food, feed and children.
Do not assume tank-mix compatibility. Follow the label for mixing, equipment cleaning and disposal; never reuse pesticide containers.