Observed arrival · 2026-10-09

TreeCheck’s citrus quarantine address checker

citruscheck.com Visit website

Editorial interest 78/100 Selection signal · not a rating of the site

TreeCheck lets Californians check whether a street address falls inside a citrus disease quarantine zone.

Landing page captured for the 2026-10-09 issue.

For: Californians checking a property near citrus quarantine zones
Worth noticing: Its listed source materials include CDFA quarantine boundaries, Census Bureau boundary files and OpenStreetMap land polygons.

Field notes

The listed source materials combine CDFA’s public quarantine-boundary layer with Census Bureau cartographic boundaries and OpenStreetMap land polygons. The page names Imperial, Los Angeles, Orange, Riverside, San Bernardino, San Diego and Ventura counties, and says the mapped boundaries are approximate and may change daily. It directs users to CDFA for confirmation and states that TreeCheck is not affiliated with CDFA or UC.

Observed signals

Read the marks

Editorial observations of this landing page, not a rating.

○OpenPublic substance visible

●ProPolished or operationally mature

◎NicheUnusually specific use

ƒJavaScriptBrowser-side code central

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