What is Alika ZC
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Active ingredients: Thiamethoxam 12.62 % w/w + Lambda-cyhalothrin 9.49 % w/w
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Formulation: ZC (mixed Capsule Suspension + Suspension Concentrate)
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Mode of action: Contact + stomach poisoning (ingestion), insecticide from neonicotinoid (IRAC 4A) + pyrethroid (IRAC 3A) groups.
Usage / Application Rates & Crops
Below are recommended rates, spray volumes, pre-harvest intervals (PHI), and usage guidelines for different crops & pests. These are from Syngenta Malaysia.
| Crop | Target Pest(s) | Dose of Alika ZC | Spray Volume / Hectare | PHI (days) |
|---|---|---|---|---|
| Padi / Rice | Rice Ear Bug (Leptocorisa oratorius) | 5 mL per 10 L water | 100 mL / ha in 200 L water | 28 |
| Chili | Cotton Bollworm (Helicoverpa armigera), Whitefly (Bemisia tabaci) | ~8 mL per 10 L | ~520 mL / ha in ~650 L water | 7 |
| Eggplant | Whitefly, Green Planthopper (Empoasca fabae) | Similar dose to chili | — | 7 days |
| Okra | Green Planthopper, Tobacco Cutworm (Spodoptera litura), Cotton Stainer Bug (Dysdercus cingulatus) | — | — | 14 days |
| Cabbage | Striped Flea Beetle (Phyllotreta vittata) | ~5 mL per 10 L | ~325 mL / ha | 7 days |
| Long Bean | Planthoppers, Thrips, Pod Borer (Maruca vitrata) | ~8 mL per 10 L | ~480-800 mL / ha | 7 days |
| Tomato | Whitefly (Bemisia tabaci) | — | ~640-700 mL / ha | 3 days |
| Tea | Green Planthopper, Tea Mosquito Bug | ~5-10 mL per 10 L | ~150-500 mL / ha | 21 days |
| Oil Palm (<2 years) | Rhinoceros Beetle (Oryctes rhinoceros), Bagworm (Metisa plana, Cremastopsyche pendula) | 15-20 mL per 10 L water | ~15-60 mL / ha in 15-200 L water depending on pest severity | — (varies) |
| Black Pepper | Bark Weevil, Lace Bug, Berry Bug, Scale, Rose Caterpillar | 6 mL per 10 L | ~600 mL / ha in ~1000 L water | 12 days |
Key Usage Guidelines / Best Practices
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Use when pest infestation reaches action threshold level (ATL) — do not spray unnecessarily.
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Spray thoroughly, coating both upper and lower leaf surfaces for good control.
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Spray interval: repeat every 7 days if needed (for many vegetable crops) but only when necessary.
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Limit number of sprays per crop / season depending on crop:
– Rice: max 2 sprays / season
– Long bean & mustard: 3 sprays / season
– Tomato: 4-6 sprays / season
– Eggplant, okra: up to 6 sprays / season
– Tea: 6-8 sprays / year
– Chili: up to 10 sprays / season -
Rotate with other insecticides from different action groups to manage resistance.
