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Performance & Quality

Reduce Fruit Cracking, Splitting & Physiological Disorders

Cracking and splitting turn good fruit into rejects, usually after a dry-then-wet swing or where cell walls are weak. The fix is stronger, more resilient fruit and steady moisture — built through calcium, silicon, and cell-membrane support. This guide covers how to reduce cracking and the Vegalab program that helps.

Works across

Why it matters

A single wet event near harvest can split a large share of a crop, and cracks open the door to rot. Because the cause is water movement and cell-wall strength, prevention focuses on building firmer fruit and steadier moisture rather than reacting after the damage.

How to measure it

Track cracking/splitting rate, secondary rot from cracks, and rejects through the supply chain. Compare blocks on a firmness/calcium program against untreated, especially across rain events.

What drives it

  • Strong cell walls from adequate calcium
  • Cell-membrane reinforcement (rigidity)
  • Silicon for tougher tissue
  • Even soil moisture — avoid dry-then-saturated swings
  • Strong roots for steady calcium and water movement

Recommended Vegalab Program

RoleProductUse
Cell integrityCellular BoostAnti-cracking; reinforces the membrane
Calcium strengthCalcium BoostCalcium for cell-wall strength
Silicon rigidityArmour BoostTougher, more resilient tissue
Root & uptakeRoot BoostRoots for steady calcium/water movement

Good to know

Cross-link to the Pest & Disease Library: Blossom-End Rot, Fruit Cracking & Splitting, Calcium Deficiency, and Drought Stress & Stress Cracking. Product claims, rates, and availability vary by jurisdiction; always follow the applicable label.

Product claims, rates, and availability vary by jurisdiction; always follow the applicable label.

Frequently asked questions

Why does fruit crack after rain?

A dry-then-wet swing makes fruit take up water faster than the skin can stretch. Even moisture and stronger cell walls prevent it.

Is cracking a disease?

No — it's a physiological disorder, though rot can enter the cracks afterward.

What products help most?

Cell-wall and membrane strength (Cellular Boost, Calcium Boost, Armour Boost) plus steady watering.