ProTone® SG Plant Growth Regulator Soluble Granule


ProTone® SG Plant Growth Regulator Soluble Granule

Enhance Table Grape Color and Improve Packout. Plus, Apple & Pear Post-Bloom Thinning.


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.

  • 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


  • For Grapes
  • Enhances Red Coloration and Packout; For Apples and Pears
  • Post-Bloom Thinning; Early Defoliation
* Each crop and use may not be registered in every state. Always read and follow label instructions.

Key Crops*

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

* Not all crops are registered in every state.

Sustainable Solutions Criteria – ProTone® SG Plant Growth Regulator Soluble Granule

Valent U.S.A. has developed a classification system that defines and identifies sustainable solutions across our ag product portfolio. This system, called our Sustainable Solutions Criteria, uses specific icons that highlight key sustainable practices and attributes of products. Click on the icons below to learn how ProTone® SG Plant Growth Regulator Soluble Granule can support sustainable practices in your operations.


Environmental Fit

  • Protective of pollinators and other wildlife
  • Protective of wetlands and other aquatic and natural areas  adjacent to agriculture
  • Comparatively rapid dissipation in the environment
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Worker Efficiency

  • Protection of workers (including mixers, loaders and applicators) during product application
  • Protection of agricultural workers re-entering the site
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Reduces Food Loss

  • Contribution to directly minimizing food waste, in the field or post-harvest
  • Food waste reduced by impact on harvest efficiency, and/or preservation of crop nutrients and quality as measured by grade, packout or other industry-relevant metric
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Improves Crop Production Efficiency

  • Increased yield, yield protection, and/or improved plant health, water and nutrient use that enhance efficiency of crop production.
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Enhances Quality

  • Enhanced quality of crop commodity that improves overall profitability
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Sustainable Solutions

Valent Sustainable Solutions support the adoption and integration of sustainable practices for crop protection, productivity and yield enhancement products and technologies.

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OMRI Listed

OMRI Listed® products are allowed for use in certified organic operations under the USDA National Organic Program and demonstrate that the product has passed OMRI's technical review and is compliant with organic standards.

Always read and follow label instructions.
ProTone is a registered trademark of Valent BioSciences LLC.
ProTone is NOP compliant and OMRI listed for organic production.