Apex 50 by CRYSTAL (Cartap Hydrochloride 4% G)
Insecticide · Detailed usage and dosage information for different crops

Apex 50 dosage by crop
Pre-harvest interval (PHI): Infinity–-Infinity days depending on crop. Do not harvest before the waiting period is complete.
| Crop | Pest / disease | Method | a.i. per ha | Formulation per ha | Water (L/ha) | Waiting period (days) |
|---|---|---|---|---|---|---|
| Paddy | Leaf Folder · Insects | Spray | 750-1000 | 18750-25000 | - | - |
| Paddy | Stem Borer · Insects | Spray | 750 | 18750 | -- | -- |
| Paddy | Whorl Maggot · Insects | Spray | 750-1000 | 18750-25000 | - | - |
Read the label. Doses above are the registered label claims (Central Insecticides Board & Registration Committee) for information only. Always follow the product label and your local agriculture officer's advice, wear protective equipment, and observe the waiting period before harvest. Found an error? Report it. See our terms of use.
Product Label & Registration
Apex 50 by CRYSTAL is registered under India's Insecticides Act 1968. The product label specifies the exact active ingredient concentration (Cartap Hydrochloride 4% G), approved crops, application method, safety precautions, and the pre-harvest waiting period.
Always purchase from a licensed dealer and verify the registration on the official CIB&RC database before use.
Other Cartap Hydrochloride 4% G brand products in India
All products below contain Cartap Hydrochloride 4% G as the active ingredient and carry CIB&RC registered label claims.
- ★ This product
Apex 50CRYSTAL
Aaltrap 4GAGASTYA
Beacon GRINDOFIL
Bildan 4gBHARAT
Boregan GADAMA
Caldan 4 GDHANUKA
CartapvipGodrej
Agri Input Dealers
Find licensed seed, fertilizer and pesticide dealers near you.
Weather & Crop Advisories
District-level agromet advisories combining IMD 5-day weather forecasts with crop-specific pest, disease and irrigation recommendations.
Government Schemes for Farmers
Subsidies, crop insurance, loans and input support — check eligibility and apply online.
Agri Finance & Credit
Loans, crop insurance and investment norms — NABARD unit costs, PMFBY rates and KCC interest.
Source: Central Insecticides Board & Registration Committee (CIB&RC), India - official registered label data · View source →. Updated: updated annually or when label claims change · Report an error
Frequently Asked Questions
What crops is Apex 50 registered for?
Apex 50 (Cartap Hydrochloride 4% G) is registered for use in Paddy as per CIB&RC label claims.
What is the dosage of Apex 50?
Dosage of Apex 50 varies by crop and pest. Always follow the CIB&RC registered label dose for each crop.
Is Apex 50 safe to use near water bodies?
Always follow the Apex 50 label instructions regarding buffer zones near water bodies, drainage channels, or ponds. Do not spray during windy conditions or when rain is forecast within 4 hours. Dispose of empty containers as directed on the label — never near water sources.
Where can I buy Apex 50 by CRYSTAL in India?
Apex 50 is available from licensed pesticide dealers across India. Use the NaPanta app to find verified dealers near you who stock CRYSTAL products. Always purchase pesticides from licensed dealers and insist on a bill to ensure authenticity.
What precautions should I take when using Apex 50?
Wear personal protective equipment (PPE) — gloves, mask, eye protection, and full-sleeved clothing — when mixing and applying Apex 50. Do not eat, drink, or smoke during application. Wash thoroughly after use. Keep children and animals away from the treated area until the spray dries. Observe the pre-harvest waiting period listed on the label.