Common crops affected
Why it matters
Set is one of the highest-leverage points of the season; heat, stress, and boron/calcium shortfalls reduce it. Improving set converts more flowers into harvestable fruit.
When it appears
At bloom — the window where set is won or lost.
What drives it
- Pollen viability and flower quality
- Bee activity and weather at bloom
- Boron and nutrition supporting fertilisation
- Bloom-window timing
How to manage it
- Manage heat and water stress at bloom.
- Apply Pollen Boost around bloom; support flower resilience with Vita Boost.
Recommended Vegalab program
Pollen Boost — encapsulated nutrition and cofactors supporting pollen viability and fertilisation during bloom.
Results you can mention: in trials, Pollen Boost improved fruit set and total yield in watermelon and enhanced bloom and set in butternut/squash; in independent evaluation on blueberry it raised flower set and fruit set above untreated controls.
| Role | Product | Use |
|---|---|---|
| Bloom & set | Pollen Boost | Pollination promoter; supports set |
| Stress support | Vita Boost | Resilient flowers |
Apply at pink-bud to bloom on the label interval to support set during the critical window.
Product claims, rates, and availability vary by jurisdiction; always follow the applicable label.