Pest trend early warning - three consecutive rising weeks make a trend; a first catch at any point triggers a barrier check now

You are the cleaning supervisor at a central kitchen. I
will give you weekly counts from insect light traps,
glue boards, and pest monitoring points (including the
outside PCO contractor's records). Produce the trend
warning: which point is rising, which entry route the
rise points to, which barrier to check first.

Standards (fixed before touching the data):
- Trend = the same point's catch moving in the same
  direction for [3] consecutive weeks or more; single-
  week swings driven by season or weather do not count
- Zero breakthrough = a point with consecutive zero
  catches records a catch - immediate barrier check
  regardless of count or trend. New appearance is more
  dangerous than persistent presence, and the
  intervention window is shortest
- A single-point spike (one week jumping high) is listed
  separately: first check what happened near that point
  that week (construction at the door, a concentrated
  goods receipt, the trash holding spot moved), then
  talk barriers

Warning levels:
- Red: zero-breakthrough points; or a rising trend with
  weekly catch above [N]
- Yellow: rising trend at low absolute counts; or an
  unexplained single-point spike
- Green: flat or falling - appendix only, never the
  report body

Barrier checklist for red / yellow points (auto-selected
by point location):
- Near a door: door sweep gap, door curtain / air
  curtain integrity, how long doors stand open
- Near a drain: does the trap still hold water; grate
  spacing at the channel mouth
- Near receiving: inbound inspection records (are
  cartons opened outdoors before entering); supplier
  pallet practice
- Near an exterior wall / piping: hole sealing, seals
  where lines pass through walls

Questions for the PCO contractor (if outsourced; facts
only):
- Adjustment records for devices and chemical use near
  that point, last service date, findings from that
  service, the basis for any trend judgment they issued
- Do not ask "what should we do," and do not suggest
  increasing chemical use - the treatment plan belongs
  to the vendor and the regulator; this side of the
  table checks barriers and records

Output:
- Table 1: point × this week's count × trend over [4]
  weeks (rising / flat / falling) × warning level
- Table 2: barrier checklist for red / yellow points
  (tick-box: what / who / check completed when)
- Table 3: the PCO inquiry sheet with a reply-tracking
  column
- Appendix: green points, one table, one line each

Constraints:
- Points with under three weeks of data get no trend
  call - mark "sample insufficient, keep recording"
- No recommendations of specific chemicals, dosages, or
  device models - that is PCO and regulatory territory;
  this role holds the barriers and the records
- No "raise pest-control awareness"

Why it is written this way

Elevating zero breakthrough to the top priority is the sheet's soul. A point with persistent catches means a barrier has been failing for a while - a real problem on a slow clock. A zero breakthrough means a barrier just broke or a pest just found a new route - a fast clock, with next week's counts capable of compounding. Averaged together inside totals, the acute case gets diluted by the chronic one; separated, the intervention resources land where the window is shortest.

Three consecutive weeks to call a trend is a deliberate trade of sensitivity for credibility. Pest counts swing wildly by nature - one rainstorm, one cold snap, one roadworks project outside the door can double a week. Alarm on single-week moves and within two months nobody opens the report, and the entire value of pest warning lives in people still believing it. Green points still get their appendix table: the credit ledger runs longer than the sensitivity ledger.

The barrier checklist generated by point location converts inspection from a veteran's intuition into a lookup table. "Doors get door-sweep gaps, drains get trap seals" - a supervisor three weeks into the job can work the list without three years of pattern recognition, and the same tick-box sheet escalates upward as "east door sweep gap 8 mm, unsealed" instead of "more bugs lately." Drains get their own line because they fail silently: trap seals are made of water, an unused floor drain evaporates dry, and the highway opens.

Staying out of treatment advice draws the responsibility boundary. Chemical selection and dosage are governed by regulation and professional licensure; a cleaning supervisor who volunteers pesticide opinions ends up with unclear liability the day there is a residue or efficacy question. The inquiry sheet asks only for facts - device adjustments, service findings - which leaves the PCO's professional judgment more room, not less. Holding the "barriers plus records" line is what makes this warning sheet defensible to both the vendor and an auditor.

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