ROS Increases Vineyard Yield by 49%
An independent 2023 field study by Sawtooth Ag Research (Steven Deitz, Selma, CA) on mature French Colombard grapevines, using foliar JC 9465.
The Problem
The Challenge
Growers face two linked pressures at once: pushing harvestable yield higher while holding back late-season disease. Sour rot in particular can strip a meaningful share of a wine-grape crop just as it ripens, and conventional inputs rarely raise yield and suppress disease from the same application.
To test whether Jenfitch's reactive-oxygen-species (ROS) chemistry could do both, Sawtooth Ag Research ran a controlled 2023 field study on a mature, six-year-old block of French Colombard in Selma, California.
The Program
The Jenfitch Solution
JC 9465 releases reactive oxygen species that support plant vascular flow while oxidizing pathogens on contact. The study applied it two ways — foliar spray and soil-irrigation drench — over four timed applications through the growing season.
- Foliar application at 390 mg/L — the treatment that produced the headline yield gain.
- Soil-irrigation application at 78 mg/L as a companion delivery route.
- Four applications across the season: April 26, May 18, June 16, and July 14.
- Increased xylem and phloem flow supported heavier, healthier fruit set.
The Data
The Results
| Metric | Control | Foliar JC 9465 | Change |
|---|---|---|---|
| Harvestable yield | Baseline | +49% | +49% |
| Clusters per vine | 60 | 73 | +13 clusters |
| Sour rot | Baseline | −50% | Cut in half |
More fruit, less rot, one program
The foliar treatment increased harvestable yield by 49%, raised clusters per vine from 60 to 73, and cut sour rot by 50% — all from four applications of a chemistry that leaves no flavor change and reverts to mild mineral-oxide by-products below FDA limits.
Documentation
Read the full study
Related: Agricultural research · Mineral Oxychloride Technology
Frequently Asked Questions
About this vineyard study.
How much did yield actually improve?
In the 2023 Sawtooth Ag Research study on mature French Colombard, the foliar JC 9465 treatment increased harvestable yield by 49%, raised clusters per vine from 60 to 73, and cut sour rot by 50%.
What was the application program?
Four applications across the season (April 26, May 18, June 16, July 14). Foliar was applied at 390 mg/L and soil-irrigation at 78 mg/L. The foliar route produced the headline yield gain.
Does treatment change flavor or leave residue?
No. JC 9465 works by generating reactive oxygen species that oxidize on contact and then revert to mild mineral-oxide by-products below FDA limits, so it extends quality without altering taste.
Is JC 9465 approved for organic growing?
Yes. JC 9465 is EPA FIFRA registered (2020) and USDA NOP organic certified (2021, 7 CFR Part 205), so it can be used in certified-organic operations.
