Optic Foliar Atak RTU – Ready-to-Use Powdery Mildew Spray

Ready-Mixed Powdery Mildew Control You Can Spray With the Lights On

Optic Foliar Atak RTU is the ready-to-use version of Atak, Optic Foliar's copper-based leaf-health spray for powdery mildew. It comes premixed with Optic Foliar Transport, so there is nothing to measure: pour it into a sprayer and treat the tops of the leaves, with the lights on, from cuttings through to late flower. It carries essential trace minerals, with copper from copper sulphate and potash from potassium nitrate, and leaves no residue to wash off.

Key Benefits

• Ready to use – Transport is already mixed in; no dilution and no pH adjustment
• Lights-on application without leaf burn
• Powdery mildew control from copper, applied weekly or as a spot treatment
• Cuttings to late flower – suitable through the whole cycle
• No residue and no damage to the leaf surface or the plant's essential oils

Powdery Mildew in a Humid Canopy

Powdery mildew spreads quickly where humidity is high and airflow is poor, and many treatments have to be timed around the lights or leave a coating that stays on the plant. Because Atak RTU goes on with the lights on, an outbreak can be treated the moment it is spotted, and a weekly routine spray keeps the leaves clean through the rest of the cycle. Pair it with good air movement and humidity control for the best results.

How to Use

• No mixing: pour straight into a spray bottle or atomiser – do not dilute and do not adjust pH
• Routine: spray weekly, or spot-treat as needed
• Coverage: spray the tops of the leaves until run-off, with the lights on
• Late flower: spray the leaves and avoid spraying directly onto flowers or fruit

Works Well With

Optic Foliar Atak ConcentrateThe concentrate to mix your own Aqualine Pump & Pressure SprayerEven mist over the canopy