Syngenta Actara Insecticide (Thiamethoxam 25% WG)
The Ultimate Systemic Solution for Sucking Pests and Crop Vigor
Syngenta Actara is a second-generation neonicotinoid insecticide designed to provide robust protection against the toughest sucking pests. Powered by Thiamethoxam (25% WG), it is rapidly absorbed by the plant, creating a defensive shield within the leaves and stems.
Beyond just killing pests, Actara is famous for its "Thiamethoxam Vigor Effect," which helps plants withstand stress, develop better roots, and produce greener foliage, ensuring higher yields even in challenging conditions. [Image of healthy cotton crop field]
Why Choose This Product? Key Benefits
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Rapid Action: Absorbs quickly into the plant system, stopping pest feeding within hours of application.
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Systemic Protection: Moves upward (acropetally) in the plant to protect new shoots and leaves that grow after spraying.
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Long-Lasting Control: Provides residual protection for up to 21 days, reducing the need for frequent sprays.
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Rainfastness: Becomes rainfast within 2 to 3 hours. Once dried, rain does not wash it off.
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Phytotonic "Vigor" Effect: Boosts plant health, resulting in greener leaves and better drought resistance.
Technical Specifications
| Parameter | Details |
|---|---|
| Brand Name | Actara |
| Technical Name | Thiamethoxam 25% WG |
| IRAC MoA Code | Group 4A (Neonicotinoid) |
| Chemical Group | Thianicotinyl |
| Formulation | Water Dispersible Granules (WG) |
| Toxicity Label | Blue Triangle (Moderate Toxicity) |
How It Works: Mode of Action
Actara targets the nervous system of the insect. It works through a unique 3-step process:
- Systemic Absorption: Upon spraying, the active ingredient is absorbed by the leaf or root and spreads throughout the plant's system.
- Receptor Binding: When the insect feeds on the sap, Thiamethoxam binds irreversibly to the nerve receptors, mimicking acetylcholine.
- Feeding Cessation & Death: This causes uncontrolled nerve firing. The pest stops feeding immediately (preventing virus transmission) and dies within 24–48 hours.
Note: Because it moves inside the leaf (translaminar), it effectively kills pests hiding on the underside of leaves.
Target Crops & Pests
| Crop | Target Pest(s) |
|---|---|
| Rice (Paddy) | Stem Borer, Gall Midge, Leaf Folder, Brown Plant Hopper (BPH), GLH |
| Cotton | Jassids, Aphids, Whiteflies, Thrips |
| Vegetables (Tomato, Brinjal, Okra) | Whiteflies, Aphids, Jassids, Hoppers |
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 (g / Acre) | Water (L / Acre) | Dose (g / Litre) | PHI (Days) |
|---|---|---|---|---|
| Rice | 40 - 80 g | 200 L | 0.2 - 0.4 g | 14 Days |
| Cotton | 40 - 100 g | 200 L | 0.2 - 0.5 g | 21 Days |
| Vegetables / Tea | 40 - 80 g | 200 L | 0.2 - 0.4 g | 3 - 7 Days |
*PHI = Pre-Harvest Interval: The minimum number of days to wait between the last spray and harvesting.
How to Apply: Best Practices
- Timing: Apply at the first sign of pest infestation (Economic Threshold Level). For preventive care, apply during early vegetative stages.
- Mixing: Do NOT mix with alkaline products like Bordeaux mixture or Lime Sulfur, as this reduces efficacy. Perform a jar test before mixing with other chemicals.
- Coverage: Ensure thorough coverage. For Rice BPH, ensure spray reaches the base of the plant stem.
- Safety: Always wear PPE (gloves, mask, goggles). Wash hands thoroughly after use. Do not spray during peak flowering times to protect bees.
Frequently Asked Questions
1. Does Actara control caterpillars or chewing pests?
Actara is primarily a sucking pest specialist (Aphids, Jassids). However, it has specific registrations for Rice Stem Borer and some soil-dwelling beetles.
2. Is Actara rainfast?
Yes, Actara 25 WG is highly rainfast. It is absorbed into the plant tissue within 2-3 hours, after which rainfall will not wash it away.
3. Can I mix Actara with fungicides?
Yes, Actara is compatible with many common fungicides like Amistar Top and Ridomil Gold. Avoid mixing with highly alkaline copper fungicides.
4. Why is it called a "Vigor" product?
Apart from killing pests, Thiamethoxam helps plants deal with stress (like drought), leading to greener leaves and more robust root systems even when pest pressure is low.
5. Is it safe for bees?
Actara is toxic to bees if sprayed directly on them. To protect pollinators, avoid spraying when crops or weeds are in full bloom, and spray in the early morning or late evening.
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.
