Prohexadione-Calcium 10% WP

Item	Details
Product Name	Prohexadione-Calcium 10% WP
Active Ingredient	Prohexadione-Calcium
Content	10%
Formulation	WP
Product Type	Plant Growth Regulator
Main Mode of Action	Gibberellin biosynthesis inhibitor
Main Function	Vegetative growth control
Use Direction	Canopy management and shoot-growth suppression in registered crops
Application Method	Use according to the approved local label

Prohexadione-Calcium 10% WP as a plant growth regulator with gibberellin biosynthesis inhibition and a main role in vegetative growth control and canopy management.

Main Functions

Prohexadione-Calcium 10% WP is mainly used to:

• Reduce excessive shoot growth
• Support canopy management
• Improve light and air movement through the canopy
• Help maintain more compact crop structure
• Support a better balance between vegetative growth and productive growth

The central function of this active ingredient is growth control, not general stimulation. In registered uses, prohexadione-calcium is used where strong vegetative growth makes crop management more difficult or affects canopy balance and production quality.

Mode of Action

Prohexadione-Calcium works by inhibiting gibberellin biosynthesis. Gibberellins are plant hormones involved in shoot elongation and vegetative growth. When gibberellin formation is reduced, shoot extension slows and the crop develops a more compact structure.

This is why Prohexadione-Calcium 10% WP is used in programs that require growth management, especially where vigorous vegetative development reduces canopy control, light penetration, or field and orchard manageability. Health Canada describes prohexadione-calcium as reducing vegetative growth and helping balance canopy development with fruit production in registered uses.

Suitable Crops and Application Areas

Prohexadione-Calcium 10% WP is suited to registered crop programs where growth control is needed. The current product page lists crop directions such as apple, pear, cherry, strawberry, peanut, grass grown for seed, and watercress. U.S. product labels for prohexadione-calcium also include apples, d’Anjou pears, strawberries, sweet cherries, peanuts, grass grown for seed, watercress, and alfalfa inter-seeded in corn, while Canadian registrations include apples, cherries, strawberries, and turfgrass.

These crop directions show the main use pattern clearly: Prohexadione-Calcium 10% WP fits crops where vegetative vigor must be controlled to support canopy structure, crop management, and production balance. The final crop scope should always follow the approved local label in the destination market.

Application Guidance

Prohexadione-Calcium 10% WP should be used according to the approved local label. Correct timing is important because the product is used to regulate active vegetative growth, not to correct crop structure after the growth stage has passed.

In general, this formulation is suitable when:

• the crop shows excessive vegetative growth
• shoot extension control is needed
• the canopy needs better light and air penetration
• the crop program requires a growth-regulating PGR rather than a growth-promotion product

The exact timing, dosage, interval, and crop-specific directions should follow the local approved label.

Formulation Features

WP means wettable powder. CIPAC lists WP as wettable powder, and wettable powder formulations are dry powders that form a suspension when mixed with water before spraying.

The WP formulation gives Prohexadione-Calcium 10% WP a familiar dry-format identity. It is suitable where a powder formulation is preferred for standard agricultural spray preparation and routine field or orchard use.

Product Advantages

Prohexadione-Calcium 10% WP stands out for these reasons:

• Clear vegetative growth control function
• Gibberellin biosynthesis inhibition
• Strong fit for canopy management
• Useful in fruit-tree and other registered crop programs
• Traditional WP dry formulation
• Suitable for structured growth-regulation use

Its main technical strength is straightforward: Prohexadione-Calcium 10% WP helps reduce excessive shoot growth and supports a more manageable canopy structure in registered crops.

Safety and Use Precautions

Prohexadione-Calcium 10% WP should be handled carefully during mixing, spraying, storage, and transport. It should be used according to the approved local label and standard agricultural safety practice. Health Canada reports low acute toxicity for prohexadione-calcium by oral, dermal, and inhalation routes, while still requiring label-based risk mitigation and safe-use directions.

Important points include:

• keep away from food, feed, and drinking water
• avoid contamination of water bodies and non-target areas
• wear proper protective clothing, gloves, and face protection
• follow local requirements for spray timing, drift, and crop-use directions
• use only according to the approved local label

Storage and Transport

Store Prohexadione-Calcium 10% WP in the original sealed package in a cool, dry, and well-ventilated place. Keep it away from direct sunlight, moisture, heat sources, food, feed, and unauthorized access.

Because this is a powder formulation, the packaging should be protected from:

• humidity
• water exposure
• bag damage
• rough handling during transport

Good storage helps keep the powder in stable condition before use. The basic handling expectation follows standard wettable-powder formulation practice.

FAQ

What kind of product is Prohexadione-Calcium 10% WP?

Prohexadione-Calcium 10% WP is a plant growth regulator used for vegetative growth control.

How does Prohexadione-Calcium 10% WP work?

It works by inhibiting gibberellin biosynthesis, which slows excessive shoot elongation and supports more compact growth.

What is Prohexadione-Calcium 10% WP mainly used for?

It is mainly used for shoot-growth suppression, canopy management, and vegetative growth control in registered crops.

What does WP mean in Prohexadione-Calcium 10% WP?

WP means wettable powder, a dry formulation mixed with water before spraying.

Which crops can use Prohexadione-Calcium?

Registered uses include crops such as apples, pears, cherries, strawberries, peanuts, grass grown for seed, watercress, and some other crop systems depending on local label scope.