The farmer-advisor consumer only cares about US row crops, so the EPA
scraper now drops products without at least one row-crop site in the
PPLS API response. Filter is on by default; --no-row-crop-filter
overrides for one-off broader pulls.
Filter shape:
- Word-boundary regex match against each entry in the API's `sites`
array (e.g., "SOYBEANS (FOLIAR TREATMENT)" → keep, "SHIPS, BOATS,
SHIPHOLDS" → drop even though it contains "OATS" as substring).
- Allowlist covers the major US row + small-grain + oilseed + sugar/
fiber crops, plus alfalfa as a common rotation crop. See
ROW_CROP_KEYWORDS in scrape/sources/epa_ppls.py for the full list.
Cost model:
- 102K PPIS rows still need one API call each (no bulk filter
available upstream), so enumeration still takes ~28h at 1 req/sec.
- But PDF downloads drop from ~67K → ~5-10K (estimated row-crop
hit rate), saving ~17h wall time and ~60GB disk on a full backfill.
Smoke test (4 mixed reg nos):
524-475 Roundup Ultra → kept (CORN/SOYBEANS/COTTON sites)
524-591 Warrant → kept (CORN/SOYBEANS/SORGHUM sites)
100-1486 Advion Cockroach → filtered (building/transport sites only)
432-1276 (Bayer pet flea) → filtered (no row crops)
Co-Authored-By: Claude Opus 4.7 (1M context) <noreply@anthropic.com>
justin
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