Application Dose
| Use | Rate |
|---|---|
| Bagged shelled maize | 50 g per 90 kg bag; mix thoroughly |
| Bulk conveyor handling | 500 g per tonne of maize grain |
Available Packs
50 g, 100 g, 250 g, 500 g and 1 kg.
PRODUCT DESCRIPTION
GRAIN-D DUST is a ready-to-use post-harvest insecticidal dust for controlling larger grain borer, grain weevil and red flour beetle in stored maize grain.
It contains thiamethoxam 3.6 g/kg and deltamethrin 2 g/kg. Apply directly to shelled grain as directed; no spray-water dilution is required.
MODE OF ACTION
Thiamethoxam belongs to the neonicotinoid chemical group and is classified as an IRAC Group 4A insecticide. It acts on nicotinic acetylcholine receptors (nAChR), disrupting normal nerve signalling and causing overstimulation, paralysis and death in susceptible insects.
Deltamethrin belongs to the pyrethroid chemical group and is classified as an IRAC Group 3A insecticide. It affects voltage-gated sodium channels in insect nerve cells, disrupting nerve impulses and causing hyperexcitation and paralysis. It acts through contact and ingestion.
KEY PROPERTIES
- Ready-to-use dust: Apply directly to grain without preparing a spray mixture.
- Two modes of action: Thiamethoxam and deltamethrin act at different sites in the insect nervous system.
KEY BENEFITS
- Controls larger grain borer, grain weevil and red flour beetle in stored maize when used as directed.
- Requires no spray-water dilution.
- Can be applied to bagged maize or during bulk conveyor handling.
- Combines two active ingredients with different modes of action.
METHOD OF APPLICATION
- Wear the protective equipment specified on the product label and measure the required amount of dust accurately.
- For bagged maize, mix 50 g thoroughly with each 90 kg bag of shelled grain using a shovel.
- For bulk conveyor handling, apply 500 g per tonne directly to the grain.
- Dust the inner surface of the sacks as directed.
CROPS AND AREA OF USE
| Crop / Use | Target Pest |
|---|---|
| Stored shelled maize | Larger grain borer, grain weevil and red flour beetle |
RE-ENTRY INTERVAL
6 hours
Withholding Period: 14 days after treatment.
Application Guidelines
- Clean storage surfaces before treating the grain.
- Apply once to shelled maize after harvest and before storage.
- Distribute the dust thoroughly and avoid raising or inhaling dust.
- Do not extend these directions to flour, field crops or other stored commodities.
Why Farmers Choose GRAIN-D DUST
- Ready-to-use formulation for direct application to maize grain.
- Provides two insecticidal modes of action.
- Suitable for treating bagged maize or bulk grain during conveyor handling.
- Targets three common pests of stored maize: larger grain borer, grain weevil and red flour beetle.




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