ProTone® SG Plant Growth Regulator Soluble Granule

PGRs and Protectants

ProTone® SG Plant Growth Regulator Soluble Granule is proven to help red table grape growers enhance color for greater packout and more flexible harvest without compromising quality. ProTone is ideal for use in Flame seedless, Crimson seedless and Red Glob varieties.

For European pears, ProTone provides post-bloom thinning and maximizes crop load management strategies. 

For nurseries and orchards, ProTone can speed the fall defoliation in fruit, nut and vines allowing for earlier digging of the nursery and quicker dormancy in orchards.

Product Benefits

  • Enhances Red Grape Coloration for Earlier Harvest
  • Improves Grape Color Uniformity and Packout Yield
  • Apple and Pear Post-Bloom Thinning
  • Accelerates Fall Defoliation in Fruit, Nuts and Vines
  • OMRI Listed for Organic Production

Key Problems/Uses

For Grapes, Enhances Red Coloration and Packout; For Apples and Pears, Post-Bloom Thinning; Early Defoliation

Key Crops

Grapes, Apples, Pears

Product Details


  • Apple
  • Fruit Tree
  • Juice Grape
  • Table Grape
  • Wine Grape
  • Nut Tree
  • Pear
  • Vine

* Each crop and use may not be registered in every state. Always read and follow label instructions.

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