A mail survey of growers to estimate potato common scab prevalence and economic loss in Canada
Why this work is in the frame
A frame that forgets how it found something cannot be audited. These are the routes that admitted this work.
Bibliographic record
Abstract
A mail-out survey of Canadian potato growers was conducted in February 2003 to determine common scab prevalence and extent of economic loss resulting from scab for their 2002 yield. A survey of this type is feasible given that the disease is readily observed on the surface of the tubers. A questionnaire was sent to grower associations for distribution to a sample of their membership. All provinces except British Columbia and Newfoundland and Labrador participated. The overall response rate (24%) was comparable to other mail surveys sent to growers. Response bias may therefore influence estimates. The mean prevalence of scab was 82%, representing a mean economic loss of Can$7500–$8500 (95% confidence) per farm or Can$90–$102 per hectare. The resulting estimated total economic loss to scab was between Can$15.3 and $17.3 million. Scab was most prevalent in eastern Canada, with Quebec reporting the highest mean loss per hectare. Scab was least prevalent in western Canada, occurring at low severity if present. The distribution of common scab may be related to irrigation, years in production, and type of production, among other factors. The results of this survey will serve as a baseline measure to study disease trends when compared with future survey results.
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Full frame distilled prediction
Teacher imitationNot calibrated prevalence, not ground truth. Human validation pending. Learned from the 10,348 direct Codex labels and 10,348 direct Gemma labels. Candidate is the union of thresholded teacher heads; consensus is their intersection. These outputs are machine_predicted_unvalidated and are not human labels or direct frontier model labels.
Codex and Gemma teacher scores by category
| Category | Codex | Gemma |
|---|---|---|
| Metaresearch | 0.000 | 0.000 |
| Meta-epidemiology (narrow) | 0.000 | 0.000 |
| Meta-epidemiology (broad) | 0.000 | 0.000 |
| Bibliometrics | 0.000 | 0.000 |
| Science and technology studies | 0.000 | 0.000 |
| Scholarly communication | 0.000 | 0.000 |
| Open science | 0.000 | 0.000 |
| Research integrity | 0.000 | 0.000 |
| Insufficient payload (model declined to judge) | 0.000 | 0.000 |
Machine scores (provisional)
The two teacher heads of the student model, read on this work. A score orders the frame for review; it never asserts a category, and the validation status ships verbatim with every row.
Baseline scores from an immature model (maturity gate not passed, 7 training rounds). Scores rank; they never assert a category.
score_only:v0-immature-baseline · verbatim from the scoring run: score_only means the number may rank works, and no category label ships from it