California table grapes are moving into one of the most important stages of the season as vineyards
transition from bloom and fruit set into berry sizing, canopy management, sugar movement, and preparing
for summer heat stress.

The key focus across table grape regions remains maintaining plant energy, supporting uniform berry
sizing, maximizing nutrient efficiency, strengthening vine health, and building overall fruit quality for
stronger pack-outs and shelf life.

Key Nutritional Priorities

1. Maintain Vine Energy & Berry Development

Table grapes require aggressive energy production during:

• Fruit set
• Berry sizing
• Cluster expansion
• Root activity
• Canopy growth

Axiom Ion Recommendations:

• Basilic Thunder (6-19-4)

Ortho-phosphate phosphorus supporting:

• ATP production
• Energy transfer
• Root activity
• Berry sizing
• Carbohydrate movement throughout the vine

• Axiom Ion Magnesium

Critical for:

• Chlorophyll production
• Photosynthesis
• Sugar production
• Maintaining strong canopy metabolism
• Supporting energy movement during heavy crop demand

• Atlas

49 Independent Fermented Strains supporting:

• Nutrient cycling
• Root stimulation
• Nitrogen efficiency
• Soil biology activation
• Improved uptake during stress conditions

2. Support Berry Size, Firmness & Pack-Out Quality

As berries begin sizing rapidly, calcium and potassium management become critical for:

• Berry firmness
• Cluster uniformity
• Cell expansion
• Sugar movement
• Shelf life
• Reduced berry breakdown

Axiom Ion Calcium

Our lactate-bound calcium helps:

• Strengthen berry cell walls
• Improve cluster integrity
• Support rachis strength
• Improve shelf life and shipping quality
• Reduce stress cracking and weak tissue

Kalibrate

Supports:

• Sugar transport
• Berry fill
• Water regulation
• Heat stress management
• Uniform maturity and sizing

Especially important during:

• Rapid berry expansion
• Heat spikes
• Heavy crop loads
• Veraison preparation

3. Maintain Soil Health & Water Efficiency

California grape growers continue battling:

• Salinity buildup
• Tight soils
• Water penetration issues
• High bicarbonates
• Root zone stress

Axiom Soil Backbone:

• Atlas
• Axiom Ion Calcium
• Basilic Thunder

Designed to improve:

• Soil structure
• CEC
• Root expansion
• Water infiltration
• Nutrient availability
• Irrigation efficiency

Maintaining healthy active roots becomes critical heading into summer heat cycles.

4. Micronutrient Demand Increasing

Table grapes have increasing demand for:

• Zinc
• Boron
• Manganese
• Iron

Critical for:

• Hormone activity
• Sugar movement
• Berry development
• Enzyme activation
• Carbohydrate metabolism
• Stress tolerance

Axiom Ion Micronutrients

Our lactate-bound micronutrients are designed for:

• Improved foliar absorption
• Reduced tie-up in calcareous soils
• Faster plant availability
• Increased nutrient efficiency under stress

Pest & Disease Pressure Update

Current Pressure Areas:

• Powdery mildew
• Mites
• Mealybugs
• Thrips
• Leafhoppers
• Botrytis risk later with dense canopies

Warm temperatures and rapid canopy growth continue increasing disease and insect pressure across
many vineyards.

Nutritional imbalance and excessive vegetative growth can increase susceptibility to:

• Weak berry skin
• Uneven ripening
• Disease pressure
• Poor cluster finish quality

Plant Health & Defense Strategy

Finale

Supports:

• Plant defense response
• Reduced environmental stress
• Improved canopy health
• Stronger vine resilience during heat and pressure events

Axiom Ion Calcium

Helps strengthen:

• Berry tissue
• Rachis integrity
• Leaf structure
• Root systems

Axiom Ion Zinc

Supports:

• Hormone regulation
• Stress management
• Carbohydrate metabolism
• Vine metabolic activity

Balanced nutrition remains one of the strongest tools for improving fruit quality while reducing stress-related disease and pest pressure.

Regional Focus

Coachella Valley Table Grapes

Key Focus:

• Early sizing
• Heat management
• Water regulation
• Rapid nutrient uptake

Backbone Program:

• Basilic Thunder
• Kalibrate
• Calcium
• Magnesium
• Atlas

San Joaquin Valley Table Grapes

Key Focus:

• Berry sizing
• Cluster uniformity
• Sugar accumulation
• Canopy balance

Backbone Program:

• Kalibrate
• Calcium
• Magnesium
• Zinc
• Atlas

Central Valley Table Grapes

Key Focus:

• Vine balance
• Fruit quality
• Salinity management
• Irrigation efficiency

Backbone Program:

• Atlas
• Basilic Thunder
• Calcium
• Potassium
• Micronutrient package

Overall California Table Grape Strategy

The strongest vineyards this season will focus on:

• Maintaining vine energy
• Maximizing nutrient efficiency
• Supporting strong root systems
• Managing salinity and heat stress
• Building berry quality and firmness
• Improving sugar movement and pack-outs

Axiom Ag continues helping California table grape growers improve:

• Berry size
• Fruit firmness
• Brix
• Shelf life
• Pack-outs
• Soil structure
• Water efficiency

• Overall vineyard performance through our lactate-bound Axiom Ion nutrition platform for both conventional and organic grape production systems.