Rust Fungi Eliminated & Greater Vigor in Coffee
In a six-year-old coffee field in Huila, Colombia, two months of irrigation with the Kyminasi Plants Crop Booster™ wiped out rust fungi, restored vigor across three cultivars, and lifted soil pH — with no fertilization applied.
- Date
- September 2021
- Location
- Huila, Colombia
- Crop
- Coffee — Colombia, Caturra & Castillo cultivars
- Field age
- 6 years (part under renovation)
- Inputs
- No fertilization
- Observation
- 2 months · 4 irrigation applications
Disease gone, leaves greener, soil rebalanced — in 2 months, no fertilizer.
After only four irrigations with the Kyminasi Plants Crop Booster™, the treated coffee trees showed more abundant foliar development, brighter green leaves, and no remaining presence of rust fungi. Soil chemistry also moved in the right direction, with pH rising from 4.9 to 5.2 across the same window.
Disease Resistance
Active rust fungi eliminated on treated trees — a marker of stronger plant immune response.
Foliar Vigor
Denser, more abundant leaf canopy across Colombia, Caturra and Castillo cultivars.
Color Intensity
Visibly brighter, deeper green leaves — a sign of restored photosynthesis and nutrition.
Soil Recovery
pH rising despite no fertilizer or amendments — indicating better soil biology under KPCB.
| Indicator | Before / Control | KPCB (after 2 mo.) | Gain |
|---|---|---|---|
| Presence of rust fungi | Active infection | None observed | Eliminated |
| Soil pH | 4.9 | 5.2 | +0.3 |
| Foliar development | Sparse, deficient | Abundant, vigorous | Restored |
| Leaf color | Pale / yellowing | Bright deep green | Improved |
| Fertilization applied | None | None | — same — |
Why this matters for coffee growers: Rust (Hemileia vastatrix) is the most economically damaging disease in coffee worldwide. Eliminating it without fungicide use, while simultaneously moving soil pH back into a healthier band — and doing it across three different cultivars on the same farm — points to a genuine resilience effect, not a one-variety fluke.
Curious whether the Crop Booster could help your coffee farm push back rust and rebuild vigor? Talk it through with our team in a free 15-minute call.
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