Overview
ARBOK-Stone-Fruit-Sharka applies the Arbok-Repeel acid agent to protect Prunus stone fruit from Plum Pox Virus (Sharka, PPV) — the most dangerous stone-fruit virus and quarantine object #1, with no cure (infected trees are uprooted). PPV is spread by 20+ aphid species via near-instant non-persistent transmission plus infected planting material. Repeel's strength is repellence, not killing: the aphid does not land or probe the leaf, so it cannot transmit the virus — exactly what's needed against instant transmission — while remaining safe for the pollinators stone fruit needs to set.
Applications
Repellent spraying of orchards and nurseries during aphid flight season; priority on nurseries and certified planting-material plots to stop the virus leaving with saplings/grafts; complements (not replaces) clean planting material and removal of diseased trees.
Users: stone-fruit growers, nurseries, certification programs (peach/plum/apricot belts: Mediterranean, China, etc.).
Operating Principle
The Repeel acid mist makes aphids avoid landing/probing treated leaves, narrowing the PPV infection channel against its near-instant non-persistent transmission. Pollinator-safe (essential for fruit set); residual acid neutralizes to water and safe salts.
Limitations: virus not cured — value via vector pressure reduction + clean material + rogueing; aphid transmission is instant, so timely area-wide application matters; stone-fruit-specific field validation pending.
Key Parameters
Agent: Arbok-Repeel acid solution from phosphate waste (>6 billion t globally). Action: aphids avoid landing; pollinator-safe; soil-neutralizing. Application: area-wide repellent spray in aphid-flight season; priority nurseries/mother stock. Cost: ~€40–90/ha per pass. Platform production (Arbok-VC): deep vacuum, ambient temperature, 2–4 kWh/t feed, zero effluent.
Architecture and Components
Repeel concentrate (Arbok-VC) undergoes dilution and dosing before application via orchard/nursery sprayer or drone; supported by aphid-flight monitoring, clean planting-material certification and diseased-tree rogueing protocol, and PPE/acid handling.
Advantages
Technical: repellence prevents landing/probing — the only effective lever against instant non-persistent transmission; pollinator-safe. Economic: ~€40–90/ha per pass vs orchard loss of €40,000–80,000/ha (including lost revenue). Environmental: pollinator-safe, soil-buffered, phosphate-waste origin.
Integrations
Application of Arbok-Repeel; fits orchard IPM, nursery certification, and quarantine programs; sibling to other Repeel/TRINITY crop cards.
Deployment & Operation
Area-wide repellent spraying in aphid-flight season, prioritizing nurseries/mother stock; paired with clean planting material and removal of diseased trees. Remaining: stone-fruit-specific field validation and protocol standardization.
TRL
TRL 5 (confirmed by Michael). Validated in relevant environment at the agent level (Repeel proven on related chitin pests), with stone-fruit/aphid-specific field validation pending.
TRL scale:
- TRL 1 — basic principles observed
- TRL 2 — technology concept formulated
- TRL 3 — experimental proof-of-concept
- TRL 4 — validated in lab
- TRL 5 — validated in relevant environment ← ARBOK-Stone-Fruit-Sharka
- TRL 6 — demonstrated in relevant environment
- TRL 7 — prototype in operational environment
- TRL 8 — system complete and qualified
- TRL 9 — proven in operational environment
Market Potential
PPV hits Prunus at scale: peaches/nectarines ~25–26 Mt/year, plums ~12 Mt/year, apricots ~4 Mt/year; marketable-fruit loss up to 80–100 % and cumulative damage >€10 billion over 30 years. Europe/Mediterranean is the epicenter; China is the largest producer; North America shows eradication is possible via strict quarantine. A pollinator-safe vector repellent — if validated — supports orchard and nursery protection where no cure exists.
Typical Project Economics
Establishing a new stone-fruit orchard costs €15,000–30,000/ha plus 3–4 years to first marketable yield; with lost revenue a lost orchard is €40,000–80,000/ha. Area-wide repellent ~€40–90/ha per pass, several passes/season — orders of magnitude cheaper than orchard loss. Agent feedstock negative-cost phosphate waste.
Risk Factors
Virus not cured — depends on vector reduction + clean material + rogueing. Instant non-persistent transmission demands timely, area-wide coverage. Stone-fruit field efficacy needs validation. Quarantine/regulatory frameworks per region. Acid handling/PPE.
Related Technologies
Arbok-Repeel · ARBOK-Cucurbits-Triple-Strike · ARBOK-Potato · ARBOK-Tomato-Pepper