Prohexadione-Calcium Plant Growth Regulator

Item	Specification
Product Name	Prohexadione-Calcium
Product Type	Plant Growth Regulator
Available Formulations	10% WDG, 10% WP, 15% WP, 15% WDG
Mode of Action	Gibberellin biosynthesis inhibitor
Core Use Direction	Vegetative growth control, shoot management, canopy management
Main Commercial Positioning	Orchard vigor control and growth management
Packaging Support	OEM, private label, multilingual labels
Documents Available	COA, MSDS/SDS, TDS

What Prohexadione-Calcium Does and Why It Matters

Prohexadione-Calcium is not designed to make plants grow faster. Its commercial value comes from helping you slow excessive shoot elongation and keep vegetative growth under better control. In practical terms, that means less unwanted vigor, shorter shoots, improved canopy openness, and better management conditions in orchards where strong vegetative pressure can make pruning, spray penetration, and seasonal canopy balance more difficult. The U.S. EPA identifies Prohexadione-Calcium as a foliar plant regulator that reduces vegetative growth by inhibiting gibberellin synthesis, which makes this product fundamentally different from plant growth promoters that aim to stimulate elongation or expansion.

Technical Specification Table

Parameter	Details
Active Ingredient	Prohexadione-Calcium
Formulations	10% WDG, 10% WP, 15% WP, 15% WDG
Delivery Form	Water-dispersible granule / Wettable powder
Main Biological Target	Excessive vegetative shoot growth
Main Use Environment	Orchard and specialty crop vigor management
Main Performance Value	Shoot suppression, canopy balance, easier orchard management
Supply Model	Bulk supply, OEM, private label
Export Support	Standard technical and commercial documentation

Formulation Selection Guide

Formulation	Positioning	Suitable Commercial Logic
10% WDG	Mainstream granule option	Easier handling and mainstream concentration choice
10% WP	Traditional powder option	Suitable where wettable powder remains common in the market
15% WP	Higher-concentration powder option	More concentrated powder option for pack planning
15% WDG	Higher-concentration granule option	Stronger concentration with granule-format positioning

This formulation mix is valuable because customers do not all buy on the same basis. Some care more about handling preference. Some prioritize concentration. Some need a familiar powder presentation because that fits their market. Others want a more modern granule option for positioning and logistics. Putting all four formulations on one page allows you to present one active ingredient with multiple market-fit choices, which is more useful for product planning than treating each formulation like a completely separate product.

Mode of Action

Prohexadione-Calcium works by interfering with gibberellin biosynthesis, and gibberellins are plant hormones associated with shoot elongation. When gibberellin production is suppressed, shoot growth is reduced. That is why the product is used as a growth-retarding regulator rather than a growth-promoting one. Extension materials consistently describe it as a tool for slowing vegetative growth in apple trees and helping growers manage vigor over the season.

Target Crops and Application Areas

This product is best positioned for orchard and specialty crop systems where excessive vegetative growth creates operational problems. The strongest public use profile is in apple production, where Prohexadione-Calcium is widely discussed as a key tool for controlling vegetative growth and supporting canopy management. UMass describes it as the most important and effective plant growth regulator available to control vegetative growth in apples, while NC State notes that a season-long program can dramatically reduce shoot length.

Application Methods and Dosage

Application rate, timing, and spray interval should follow the approved local label and crop-specific technical program. That is especially important for plant growth regulators, where the effect depends heavily on crop stage, existing vigor, growing conditions, and management goals. Rather than forcing one generic dosage statement across all markets, POMAIS recommends a label-based approach that supports compliant supply and market-specific product positioning.

Formulation Stability and Packaging Options

One reason to build this page around multiple formulations is that customers often need flexibility beyond the active ingredient itself. Some markets prefer WDG because it can offer cleaner handling and a stronger modern product image. Other markets continue to work comfortably with WP because it fits existing user habits, cost expectations, or channel preferences. By offering both 10% and 15% in both WDG and WP directions, POMAIS gives you more room to match the product to your packaging program and market segment.

We support flexible pack sizes and private label development based on your sales channel. That includes bottle, bag, sachet, carton, and outer packing adaptation according to your market plan. For customers developing a plant growth regulator line, the ability to align formulation type, concentration, and packaging design on one sourcing path is a real advantage. It makes product line planning easier and helps you present a more coherent offer to your own customers.

Tank Mix Compatibility and Safety Precautions

Tank-mix compatibility should be handled carefully and evaluated according to local label directions, water quality, crop sensitivity, and the other products in the spray tank. A blanket compatibility promise is not the right way to position a plant growth regulator. The professional recommendation is to assess mixtures case by case, conduct a jar test before large-scale use, and follow local agronomic guidance and approved use instructions.

Safety communication should also remain practical and disciplined. This page should focus on correct handling, storage, and label-based use rather than exaggerated safety claims. That tone is more credible for professional customers and better aligned with international supply standards. It also reinforces that POMAIS supports responsible product use, not generic sales language.

Regulatory Compliance and Environmental Positioning

For international customers, compliance support is often as important as the formulation itself. POMAIS can support standard technical and commercial documentation such as COA, MSDS/SDS, and TDS to assist product review, private label preparation, and supply coordination. This is the kind of support importers, distributors, and brand owners actually need when evaluating a new plant growth regulator line.

Public regulatory materials also show that Prohexadione-Calcium has been evaluated within established risk and residue assessment frameworks. The EPA identifies it as a plant growth regulator, and EFSA’s published review materials discuss residue and exposure assessment within the approved use context. For page writing, the right message is not exaggerated compliance language. It is document-backed supply, label-based positioning, and support for customers operating in regulated markets.

OEM Services and Market Support

POMAIS does not only supply Prohexadione-Calcium as a technical formulation choice. We help you convert it into a sellable market product. That includes OEM and private label support, multilingual label design, packaging customization, and export documentation coordination. If you are building an orchard crop regulation line or expanding a fruit-focused input portfolio, this product gives you a clear use story that is easier to position than a broad, undefined plant regulator.

The multi-formulation structure is particularly useful for customers who want one active ingredient with more than one commercial route. You may want a mainstream entry-grade formulation, a higher-concentration option, a powder line for one channel, and a granule line for another. Instead of sourcing these choices separately, you can discuss one product family with POMAIS and build a more organized product strategy around it.

Field Use Scenarios

A typical use scenario is a high-vigor orchard where excessive shoot growth creates a dense canopy, higher pruning pressure, and reduced spray access into the tree structure. In that situation, Prohexadione-Calcium is easier to explain and easier to sell because the value is visible in orchard management terms. The product is not just “changing growth.” It is helping the grower reduce shoot pressure, manage canopy shape, and improve the operating conditions for the rest of the season. That is a more practical and commercially relevant message.

A second scenario is orchard management programs where shoot fire blight pressure is part of the seasonal discussion. University extension sources note that Prohexadione-Calcium can be used extensively to aid in the control of shoot fire blight because of its vegetative growth control effect, and Penn State includes it among tools effective for mitigating shoot blight during the season. The right way to communicate this is carefully: the product’s core identity remains a plant growth regulator, but that growth control function can also support shoot fire blight-related management programs in apple systems.

FAQ

Why are 10% WDG, 10% WP, 15% WP, and 15% WDG presented on one page?

Because they belong to the same active ingredient family and serve the same core market direction: vegetative growth control. Presenting them together makes formulation comparison easier and avoids splitting one product theme across multiple weak pages.

What is the main function of Prohexadione-Calcium?

Its main function is to reduce excessive vegetative growth by inhibiting gibberellin synthesis. In commercial terms, that means it is mainly positioned for shoot control, vigor management, and canopy regulation.

Which crops is this product commonly associated with?

The strongest public application profile is in apple production, especially for vegetative growth control and orchard vigor management. Final crop positioning should follow the local approved label and market program.

Can POMAIS support private label supply?

Yes. POMAIS supports private label programs, multilingual labels, packaging customization, and standard technical documentation for export supply.

Can POMAIS help choose the right formulation for my market?

Yes. We can help you compare WDG and WP options, evaluate concentration preference, and plan a formulation structure that fits your target channel and packaging strategy.

Why Choose POMAIS as Your Supplier

When you source Prohexadione-Calcium from POMAIS, you are not limited to one isolated SKU. You gain access to a product family approach that makes formulation planning more flexible and more commercial. This is especially valuable if you are supplying orchard growers, building a fruit crop regulator line, or developing your own brand with multiple packaging and positioning needs. Instead of buying a product and then figuring out how to sell it, you can start with a product line that already has a strong use story.

POMAIS also supports the supply side that matters in real export business: stable communication, flexible packaging, private label support, and document-backed delivery. For importers, distributors, and brand owners, that makes the product easier to launch, easier to segment, and easier to present professionally in the market.

Work with POMAIS on the Right Prohexadione-Calcium Formulation

If your market needs a plant growth regulator focused on vegetative growth control, orchard canopy management, and practical formulation choice, POMAIS can help you build the right Prohexadione-Calcium program. Contact us to discuss 10% WDG, 10% WP, 15% WP, or 15% WDG packaging options, private label development, and document support for your market.