Current UCUI
68/100
Moderate-High Uncertainty
+4 points from prior reading
Potato Market Intelligence
Potato Late Blight Tuber Rot Incidence
Potato late blight tuber rot incidence measures disease-related loss in fields, storage, and delivered lots. MassGain connects inspection with field infection, harvest conditions, storage progression, contract timing, and replacement supply so procurement can isolate affected cohorts instead of treating an entire region as lost.
Market Data
How to read this market
Potato late-blight-tuber-rot-incidence data records the share and severity of tubers showing rot associated with late blight in field, storage, or receiving samples. The market object is the exposed lot or storage cohort linked to region, variety, field history, harvest date, storage conditions, and sampling method.
Use the data to identify which contracted or stored tonnes are vulnerable, monitor progression, and estimate merchantable or processable supply by delivery period. Combine inspection with field infection, harvest weather, storage history, and replacement availability rather than extrapolating one sample to an entire region.
Data Module
Potato Late Blight Tuber Rot Incidence
Market objectdisease-exposed lot or cohort
Primary measuresrot incidence and severity
Key dimensionsfield, variety, storage, delivery period
Commercial useusable-supply and replacement planning
Risk contextfield infection and storage progression
Compare withrepeated inspection and alternate supply
Analysis
Why this matters
Tuber-rot risk can worsen after harvest, so an initially acceptable lot may lose usable value faster than headline storage tonnes suggest. The commercial problem is often concentrated in specific fields or cohorts rather than the whole origin.
Interpretation should distinguish confirmed affected volume from potential exposure. Procurement can protect unaffected inventory and source only the likely delivery gap while additional inspections refine the loss.
Signal 01
Usable Crop Uncertainty Index
UCUI translates crop and market complexity into a simple uncertainty signal. Higher readings indicate greater uncertainty—not necessarily higher prices.
Understand uncertainty. Anticipate risk. Act earlier.
UCUI is designed to analyze potato-industry publications and data signals across regions, varieties, weather, disease, storage, supply, and demand.
WeatherHigh
DiseaseHigh
StorageMedium
SupplyMedium
Single-day snapshot based on a scan of 11,500+ web and social signals. Get historical and real-time data by clicking the button below.
The MassGain Daily
Today’s market analysis.
A daily editorial synthesis of physical potato data, crop signals, market reporting, and what participants should watch next.
September 16, 2026Latest MassGain publication
Potato market steady for now; Russia’s smaller crop is the salient risk
Spot prices are flat and USDA terminal reports read ‘market steady,’ but a renewed forecast for a smaller Russian harvest and recent regional harvest stress leave seasonal import timing and storage losses as the key uncertainty.
Signal 02
MassGain Potato Index
Independent physical-pricing intelligence and market-trend analysis for procurement, forecasting, contracting, and scenario planning.
Core Russet Carton Median
312.45 USD/MT
Latest qualifying physical-market observation
+4.75 (+1.55%)
Price discovery for the physical potato market
MPI is designed to track physical pricing data, price trends, deltas, and divergences across regions and potato types.
Series window45 days
Current public coverageCore russet cartons
Primary source basisQualifying USDA physical rows
UnitUSD per metric tonne
Single-day snapshot based on most recent 45 days worth of data. Limited to US Russets only. Get more complete, global data about all varieties by clicking the button below.
Signal 03
MassGain Spot Reference
An independent spot reference designed for price discovery, contract discussions, procurement comparisons, and risk modeling.
Russet Burbank — U.S. Midsize
305 USD/MT
Demonstration reference format
+1.6% WoW · Confidence: High
A trusted benchmark for pricing, contracts, and risk
MSR is intended to use real transactions and verifiable physical-market data to support negotiations, price checks, contracting, and risk models.
ProductRusset Burbank
SpecificationU.S. midsize, 40–70 count
Reference typePhysical spot benchmark
StatusIn development
Based on most recent 45 days worth of data. Limited to US Russets only. Get more complete, global data about all varities by clicking the button below. Full access also includes historical data -- including depreciated NYMEX/CBOE/EEX spot references -- projections, trends, and AI-driven insights.
The MassGain Product Ladder
From insight to intelligence to action
Four integrated products built for the physical potato market, delivered through public pages, reports, exports, dashboards, and API access.
1
Content
Original research, commentary, aggregated news, and market updates.
- What matters right now?
- What is happening out there?
2
UCUI™
Usable Crop Uncertainty Index: an AI-powered signal of crop risk and market uncertainty.
- Understand uncertainty
- Anticipate risk
- Act earlier
3
MPI™
MassGain Potato Index: independent physical-pricing intelligence and trend analysis.
- Price discovery
- Regional trends
- Procurement planning
4
MSR™
MassGain Spot Reference: an independent benchmark for price discovery and risk modeling.
- Contracts
- Negotiations
- Risk models
Content + UCUI + MPI + MSR + API access
Get historical series, regional detail, constituent data, exports, alerts, and direct data access.
Overview
Who is this for?
This page is for procurement and market-intelligence teams tracking potato late blight tuber rot incidence in stored or delivered supply. MassGain organizes inspection and field evidence by region, variety, grower, lot, harvest date, storage, delivery period, and sampling method.
It links rot incidence with weather, field infection, harvest conditions, wound risk, storage temperature, ventilation, and progression over time. Buyers can identify which cohorts are exposed, estimate merchantable or processable volume, and distinguish a localized disease problem from broader regional scarcity. Procurement can revise coverage, operations can sequence vulnerable lots, finance can update inventory value, and risk teams can model downside loss.
The suite preserves uncertainty because tuber rot can progress after initial inspection and sample results may understate pockets within a pile. MassGain does not diagnose disease or replace pathology and physical inspection. It provides a transparent market-aware framework for connecting disease incidence with usable supply, timing, and commercial exposure.
Use Case
A processor learns that late blight was confirmed in several contracted fields. MassGain combines field history, storage cohorts, inspection results, and delivery timing. The team brings forward higher-risk lots, increases sampling, and secures replacement volume only for the weeks where usable supply is likely to fall.
FAQs
What does tuber rot incidence measure?
It measures the share of sampled potatoes showing rot associated with late blight infection.
Why can risk increase in storage?
Infected tubers can deteriorate and contribute to secondary breakdown after harvest.
How does MassGain support sourcing decisions?
It maps disease evidence to specific lots, timing, expected losses, and replacement-market availability.
Put this market intelligence to work
Get historical data, regional detail, benchmarks, alerts, exports, and API access tailored to your procurement
and market-analysis needs.
Data and Methodology
Professional market-data standards
MassGain is building transparent public market infrastructure. Each live metric will identify its date, unit, coverage, methodology, and source basis.
Data provenance
MassGain uses public, licensed, contributed, and independently derived physical-market information. Source availability and publication schedules vary.
Timing and revisions
Figures may reflect the latest available observation rather than a same-day transaction. Source data and MassGain calculations may be corrected, restated, or revised.
Not transactional pricing
MassGain figures are informational reference values and do not constitute executable bids, offers, settlements, or guarantees that a transaction can occur at the displayed value.
No individualized advice
Content and data are provided for informational and analytical purposes and do not constitute financial, investment, legal, trading, or individualized procurement advice.
Independent publication
Certain observations may be derived from USDA reports. MassGain is independent and is not affiliated with or endorsed by the USDA.
Commercial use and licensing
Public display does not grant rights to reproduce, redistribute, republish, or incorporate MassGain indices or references into commercial products or contracts without authorization.