Tree Nuts

Product Information

Longer-lasting Alion® herbicide provides a superior solution for pre-emergence control of a broad range of annual grass and broadleaf weeds, including ALS- and glyphosate-resistant species. Alion is available for use in established tree nut crops, including pistachio. Alion contains a unique class of chemistry (cellulose-biosynthesis inhibitor) as its active ingredient (Group 29). Alion offers excellent crop and environmental safety when used as directed. At 3.5 to 6.5 oz./A, Alion will provide up to 6 months of residual control, reducing the number of in-season sprays.

Tree nuts: (EPA Crop Group 14)

  • Almond
  • Beech nut
  • Brazil nut
  • Butternut
  • Cashew
  • Chestnut
  • Chinquapin
  • Filbert (hazelnut)
  • Hickory nut
  • Macadamia nut
  • Pecan
  • Pistachio
  • Walnut, black and English

Key weeds

  • Italian Ryegrass
  • Marestail
  • Filaree spp
  • Fleabane spp
  • Junglerice


  • For use in orchards established for one or more years (three years in pecans)
  • For use on soils with less than 20% gravel content
  • Broadcast rate of 3.5-6.5 fl. oz. per acre, depending on soil organic matter content
  • Best results achieved when applied in the fall/winter to optimize incorporation from fall and winter rains
  • Ability to tank-mix with other commonly used TNV products
  • Combine with a post emergence herbicide to provide control of emerged weeds
  • See label for detailed application information

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