Restoring Citrus-Greening (HLB) Groves to Marketable Fruit
A field program with GreenAgri Solutions LLC in Springhill, Florida, using a JC 9465 foliar-and-soil protocol on HLB-diseased citrus.
A JC 9465 foliar-and-soil protocol returned citrus-greening (HLB) trees to marketable fruit in 60 days. Working with GreenAgri Solutions in Springhill, Florida, Jenfitch applied a 2% foliar spray plus a light soil drench every two weeks over six weeks, holding ORP above +700 mV. The program is now in its fourth year.
Last updated 5 August 2026
The Problem
What problem did the grove face?
Citrus greening — Huanglongbing (HLB) — has devastated Florida citrus. Since 2019, more than 75% of the state's citrus has been lost, with orange production down about 75% and grapefruit down about 85%. The disease starves trees of nutrients, degrades fruit, and has had no reliable cure.
Jenfitch partnered with GreenAgri Solutions LLC (Springhill, Florida) to test whether its reactive-oxygen-species chemistry could restore diseased trees to productive, marketable fruit.
The Program
How did Jenfitch treat the grove?
The protocol combined a foliar spray with a light soil drench, applied in the early morning and held at a disinfecting oxidation-reduction potential. JC 9465 is effective against 99.99% of bacteria and viruses, and it began working almost immediately in the grove.
- 2% JC 9465 foliar spray plus a light soil drench, applied early morning.
- Every two weeks over a six-week window, holding ORP above +700 mV.
- Started on a single tree — which pushed a new healthy "flush" within a week — then expanded to 20 trees.
- After 60 days, all treated trees had developed marketable fruit.
The Data
What were the results?
| Stage | Outcome |
|---|---|
| Single tree, first application | New healthy flush within a week |
| Scaled trial | Expanded to 20 trees |
| After 60 days | All treated trees developed marketable fruit |
| Program today | Now in its 4th year across 2 acres (1 control, 1 treated) |
| Pathogen efficacy | Effective against 99.99% of bacteria and viruses |
From diseased to marketable in 60 days
A single treated tree produced a new healthy flush within a week; the trial scaled to 20 trees, and after 60 days all developed marketable fruit. The program is now in its fourth year across two acres — one control block, one treated.
Context
What has HLB cost Florida?
Huanglongbing — citrus greening — is the reason Florida's citrus industry looks nothing like it did a decade ago. Since 2019 the state has lost more than 75% of its citrus production: roughly 75% of oranges and 85% of grapefruit. Groves that were productive within living memory have been pushed out and replanted with other crops or taken out of agriculture entirely.
The disease is difficult because of where it sits. The bacterium lives in the phloem, the tissue that moves sugars through the tree, and it is spread by an insect vector. Conventional programs therefore attack the vector rather than the infection, and a tree that is already symptomatic is generally written off. That is the backdrop against which this field work was carried out, with GreenAgri Solutions LLC of Springhill, Florida.
The Protocol
The field protocol, step by step
The application program is deliberately simple. A 2% JC 9465 foliar spray is paired with a light soil drench, applied in the early morning and repeated every two weeks over a six-week window — three applications in total. Solution ORP is held above +700 mV, the same threshold used for disinfection work elsewhere in the line.
Early-morning timing is not incidental. It puts the application on the tree while stomata are open and before the day's heat drives evaporation, which improves uptake and reduces the risk of leaf stress.
The work scaled in stages rather than starting at grove scale. A single tree was treated first and produced a new healthy flush within a week. That result was extended to 20 trees, and after 60 days all of them had developed marketable fruit. The program is now in its fourth year across two acres, run as one treated acre against one control acre — a structure that keeps a live comparison in the ground season after season rather than relying on a single year's snapshot.
The same chemistry is under evaluation against Xylella fastidiosa in European olives, where hydroxyl radicals break down the biofilm clogging the xylem before oxidizing the bacterial DNA, and against Bakanae in rice, where trial yield loss fell from about 30% to under 10%. These are active research programs, and results are reported as field observations rather than as registered disease-control claims.
Documentation
Read the full study
Related: Agricultural research · Mineral Oxychloride Technology
Frequently Asked Questions
About this citrus-greening program.
What is citrus greening (HLB)?
Huanglongbing (HLB), or citrus greening, has destroyed the majority of Florida citrus, with more than 75% lost since 2019, oranges down about 75% and grapefruit about 85%. It starves trees of nutrients and degrades fruit, and it has had no reliable cure. That loss is why Jenfitch worked with GreenAgri Solutions LLC in Springhill, Florida, to test whether reactive oxygen species chemistry could return diseased trees to marketable fruit.
What was the treatment protocol?
A 2% JC 9465 foliar spray plus a light soil drench, applied early morning every two weeks over a six-week window while holding ORP above +700 mV, in partnership with GreenAgri Solutions LLC in Springhill, Florida. Dosing to a target oxidation-reduction potential keeps the grove in a disinfecting regime, and JC 9465 is effective against 99.99% of bacteria and viruses. The program began on a single tree before being scaled up.
How fast did trees respond?
A single treated tree pushed a new healthy flush within a week. The trial expanded to 20 trees, and after 60 days all had developed marketable fruit. That timeline came from applications every two weeks across a six-week window, with the foliar spray and light soil drench holding the trees in a disinfecting oxidation-reduction potential range. The early single-tree response is what justified scaling the program up.
Is the program still running?
Yes. It is now in its fourth year across two acres, one control block and one treated block, so treated and untreated trees can be compared side by side over multiple seasons. JC 9465 is effective against 99.99% of bacteria and viruses. The work continues to use the same foliar-and-soil protocol developed with GreenAgri Solutions LLC in Springhill, Florida, on HLB-diseased citrus.
