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Performance & Quality · Solutions

How to Reduce Berry Cracking in Grapes

Berry splitting in grape opens the door to botrytis and sour rot and downgrades table and wine fruit, especially in tight bunches hit by late rain or irrigation swings. Skin strength and steady water are the defence.

Common crops affected

Why it matters

A single wet event near harvest can split a large share of a crop and open it to rot; prevention is firmer fruit and steady moisture.

When it appears

Near harvest, after rain or irrigation swings.

What drives it

  • Water uptake swings late-season
  • Berry skin strength and calcium
  • Bunch tightness and canopy
  • Rain and humidity near harvest

How to manage it

  1. Keep moisture even; mulch to buffer swings.
  2. Build cell-wall strength with Cellular Boost, Calcium Boost, and Armour Boost.

Recommended Vegalab program

Calcium Boost and Rigid Boost — encapsulated calcium and cell-wall support for stronger, split-resistant skins.

Results you can mention: in citrus field trials, Sun Boost increased tree vigour and bloom; the firmness, cracking and stress products are positioned on cell-wall/calcium and biostimulant modes of action — keep this copy educational where specific-crop trial figures aren't yet available.

RoleProductUse
Cell integrityCellular BoostAnti-cracking; reinforces membrane
CalciumCalcium BoostCell-wall strength
SiliconArmour BoostTougher tissue

Support skin strength through berry development; keep irrigation steady and manage bunch exposure.

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

Frequently asked questions

Does irrigation timing matter?

Yes — avoiding sharp water swings late-season is central; pair steady irrigation with skin-strength nutrition.