Current UCUI
68/100
Moderate-High Uncertainty
+4 points from prior reading
Potato Market Intelligence
Potato Vine Kill Timing
Potato vine kill timing links a field-level canopy termination decision with maturity, size, dry matter, skin set, disease exposure, and harvest readiness. Growers and processors can compare the value of additional bulking with the cost of delayed harvest, compressed storage intake, or a missed factory slot.
Market Data
How to read this market
Potato vine-kill-timing data records when canopy growth is terminated before harvest and links that decision with maturity, skin set, tuber size, dry matter, disease risk, weather, and contracted delivery windows. The market object is the field-level timing decision and its expected effect on marketable crop.
Use the data to compare the value of further bulking with the risks of delayed harvest, disease, compressed storage intake, or missing a factory slot. Analyze timing by variety and end use rather than applying one schedule across all potato programs.
Data Module
Potato Vine Kill Timing
Market objectpreharvest termination timing
Primary tradeoffbulking versus readiness
Key dimensionsfield, variety, maturity, weather
End-use effectssize, solids, skin set
Commercial usedelivery and quality planning
Compare withharvest window and plant demand
Analysis
Why this matters
Vine kill is commercially important because it fixes part of the crop's size and maturity profile while starting the path toward harvest. Earlier timing may protect quality or delivery but sacrifice yield; later timing may improve bulking while increasing weather and disease exposure.
The correct interpretation is marginal: compare the value of additional crop development with the cost of delay and the specification the field is intended to serve.
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 processor procurement teams, grower-relations managers, agronomists, and supply planners deciding when potato vines should be killed before harvest. Vine kill timing influences skin set, tuber size distribution, dry matter, fry color, harvest readiness, disease control, and the date contracted crop can enter storage or a factory. MassGain helps users place field-level timing decisions inside the wider market and supply plan.
The commercially correct date is rarely the earliest possible or the latest agronomically tolerable date. Killing vines too soon can sacrifice yield and size; waiting too long may increase disease exposure, delay harvest, compress storage intake, or miss a plant delivery window. MassGain combines crop calendars, variety requirements, canopy and maturity observations, weather, contract dates, expected processor demand, regional harvest progress, and price conditions. Procurement teams can see whether a delayed decision creates a supply gap, processors can compare likely intake quality across grower programs, and finance can model the effect of lower yield versus improved specification compliance. MassGain does not prescribe field treatment or replace agronomic judgment. It provides the planning context needed to connect vine kill timing with usable supply, factory requirements, storage capacity, and market risk.
Use Case
A fry processor sees one grower district approaching the target solids range, but wet weather is forecast during the normal harvest window. MassGain compares maturity, contract delivery dates, storage capacity, and regional harvest progress. The processor and growers advance vine kill on the most ready fields, preserve later fields for additional bulking, and avoid creating one concentrated intake surge.
FAQs
Why does potato vine kill timing matter?
It affects skin set, tuber size, dry matter, disease exposure, harvest timing, and contract performance.
Can the same timing be used for every variety?
No. Variety, end use, maturity, weather, quality targets, and delivery requirements differ.
How does MassGain support the decision?
It connects field timing with contracts, plant demand, harvest progress, storage, and regional supply risk.
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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.