When applying herbicides in-crop it's important to understand the chemical's mode of action (MOA). This fact sheet discusses MOA and other factors including plant growth stage, weather conditions and nozzle choice.

Key Points

• Understand how a product moves in the plant and its formulation. Choose the right nozzle and water amount.
• Even spray coverage is important for products that have a slow rate of movement in plants.
• The crop's growth stage, canopy size, and stubble affect nozzle choice, water use and sprayer setup.
• Using the right product amount and enough water is often more important than the nozzle type. The correct nozzle helps with better spraying, wider coverage, and less drift.
• Travel speed, boom height, and steadiness impact spray coverage, effectiveness and drift risk.
• Always read the product label for specific application instructions.

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