Alion brand tag
Alion brand tag


Alion is a pre-emergence herbicide for the control of broadleaved and grass weeds in apples, grapes and stonefruit.

Weeds compete for light, water and nutrients with your crop as well as being unsightly. With a single application applied to a clean herbicide strip, Alion prevent seedling weeds from germinating, and provides long-lasting (up to 6 months) pre-emergent control of a wide spectrum of the problematic weeds in apples and grapes, including glyphosate resistant ryegrass. 

  • Benefits

  • Crop Suitability & Usage

  • Resources

  • Long lasting pre-emergent control reduces number of herbicide applications required
  • Allows growers to focus on other key jobs, rather than weeds
  • With an alternative mode of action, Alion is an ideal resistance management tool
  • Easy to use – liquid formulation and low use rate

Pack size – 1 L

Crop Weeds Controlled
Apples, Grapes, Pears and Stonefruits Broad-leaved and grass weeds
Question Answer
Product Type Herbicide
Active Ingredient Indaziflam 500 g/l 
Formulation Type Suspension concentrate
Pack Size 1 L
Application Rate/Timing Grapes, Apples and Stonefruit
Weeds: pre- emergence control of broadleaved and grass weeds

Apply Alion at a use rate of 150 ml/ha in a water rate of 150 – 300 L/ha. Apply in the spring through to early summer prior to weed germination. Apply to bare soil free of significant plant material to ensure complete soil coverage. Excessive weed mass on the soil surface may prevent uniform distribution of Alion reaching the soil and consequently may reduce weed control. In dense stands of living weeds, an application of a foliar active herbicide first, then followed with Alion is recommended. Do not apply Alion more than once per season.
Mixing Ensure spray equipment is thoroughly cleaned before use. Ensure the suspension is thoroughly mixed. Shake before use. For larger containers, invert and roll several times to re-suspend the formulation. Add the required amount of Alion to a partly filled spray tank with the agitation system operating. Add the remaining water and any tank mixture partners.
Withholding Period Apples, Pears: 56 days
Grapes: 70 days
Stonefruits: 30 days
Leaf plucking in vineyards: Sheep that have been grazing or fed treated crops should be withheld from slaughter or sale for at least 6 months.

Alion Label

Alion SDS

Alion HazNote

Alion Bayer Informs

Alion User Guide