Wartap 4G Insecticide (Cartap Hydrochloride) - Expert Rice Pest Control
Stop Stem Borers and Leaf Folders before they destroy your paddy harvest.
Rice farming is the backbone of India, but hidden pests like the Stem Borer (Dead Heart) and Leaf Folder can quietly ruin up to 20% of your yield. Wartap 4G, brought to you by Nichino India, is a powerful Japanese technology designed specifically for the unique needs of Indian paddy fields.
Unlike sprays that wash off, Wartap 4G is a systemic granule. Once applied in the water, it is absorbed by the plant's roots and travels up the stem, creating a shield from the inside out. It targets pests where they hide, ensuring your crop stays healthy and your hard work pays off.
Why Choose This Product? Key Benefits
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Double Action Power: It works in two ways: by Contact (touch) and Stomach (eating). Pests stop feeding almost immediately after exposure.
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Systemic Protection: The medicine enters the plant system and reaches the stem marrow, killing borers that sprays cannot reach.
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Long-Lasting Control: One application provides safety for 15 to 20 days, giving you peace of mind during critical growth stages.
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Easy Application: No pumps or spraying required. Simply broadcast the granules by hand or mix with fertilizer in standing water.
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IPM Friendly: It is safer for beneficial insects like spiders and mirid bugs compared to harsh chemical sprays, supporting a healthy ecosystem.
Technical Specifications
| Parameter | Details |
|---|---|
| Brand Name | Wartap 4G |
| Technical Name | Cartap Hydrochloride 4% G |
| IRAC MoA Code | Group 14 (Nereistoxin Analogue) |
| Chemical Group | Nereistoxin / Carbamate derivative |
| Formulation | Granules (GR) |
| Toxicity Label | Blue / Moderately Toxic |
How It Works: Mode of Action
Wartap 4G contains Cartap Hydrochloride, which mimics a substance found in marine worms. It attacks the nervous system of the insect in a unique way:
- Blockade: It blocks the nerve signals (at the Nicotinic Acetylcholine Receptor) so the insect's muscles cannot receive messages.
- Paralysis: The insect enters a state of paralysis. It loses control of its mouthparts and stops eating your crop immediately.
- Elimination: Unable to feed or move, the pest dies from starvation and nerve failure within a short time.
Because it works differently than other common poisons (like Organophosphates), it is excellent for killing pests that have become resistant to other chemicals.
Target Crops & Pests
| Crop | Target Pest(s) |
|---|---|
| Paddy (Rice) | Yellow Stem Borer (Dead Heart / White Ear) |
| Paddy (Rice) | Rice Leaf Folder |
| Paddy (Rice) | Rice Whorl Maggot |
Dosage & Application Guide
The Golden Rule: Always follow the "Dose per Acre" for accurate results.
Dosage per Acre, Litre, & Pre-Harvest Interval (PHI)
| Crop | Dose (kg / Acre) | Water (L / Acre) | Dose (ml / Litre) | PHI (Days) |
|---|---|---|---|---|
| Paddy (Stem Borer) | 7.5 kg - 10 kg | N/A (Broadcast) | N/A | 15-21 Days |
| Paddy (Leaf Folder) | 7.5 kg - 10 kg | N/A (Broadcast) | N/A | 15-21 Days |
| Paddy (Whorl Maggot) | 7.5 kg - 10 kg | N/A (Broadcast) | N/A | 15-21 Days |
*PHI = Pre-Harvest Interval: The minimum number of days to wait between the last spray and harvesting.
How to Apply: Best Practices
[Image of farmer broadcasting granules in paddy field]- Timing: Apply 15-20 days after transplanting or as soon as you see egg masses or early moth activity. For Whorl Maggot, apply early in the vegetative stage.
- Mixing: Mix the required quantity of Wartap 4G with sand or fertilizer (like Urea) for uniform distribution across the field.
- Coverage (Crucial Step): Ensure there is 2-3 inches (5 cm) of standing water in the field. Keep this water impounded (do not drain) for 3 to 5 days after application so the granules dissolve and reach the roots.
- Safety: Always wear PPE (gloves, mask, goggles). Wash hands thoroughly after use. Do not apply if you plan to release fish into the paddy water immediately.
Frequently Asked Questions
1. Can I mix Wartap 4G with Urea?
Yes, it is very common and effective to mix Wartap 4G with Urea for easier broadcasting. However, avoid mixing with highly alkaline substances (like lime) as it may reduce effectiveness.
2. Does Wartap 4G kill eggs?
Wartap primarily targets the larvae (caterpillars) and adults. While it may not destroy eggs directly, it kills the larvae as soon as they hatch and start feeding on the treated plant.
3. What is the antidote for accidental poisoning?
The specific antidote for Cartap poisoning is L-Cysteine. Note that Atropine (used for other pesticides) is NOT effective for Cartap. Always seek immediate medical help.
4. Will it cure "White Ear"?
"White Ear" is a symptom of damage already done. Wartap 4G is best used as a preventative or early curative measure to stop the borer before it cuts the panicle connection.
5. Is it safe for aquaculture (fish)?
Cartap is derived from a marine toxin and can be harmful to aquatic life. Do not drain treated paddy water into fish ponds for at least a week after application.
Safety & Disclaimer
Always read and follow the instructions on the official product label. The information provided here is for guidance only. Use personal protective equipment (PPE) during application.
