Visual reference slot
Needed asset: Chlorosis Pattern Checklist comparing uniform yellowing, interveinal yellowing, new growth, old growth, and blotchy yellowing.
THC Living Plant Atlas · Leaf Module
Chlorosis is yellowing from reduced chlorophyll. It is a symptom category, not a diagnosis.
Needed asset: Chlorosis Pattern Checklist comparing uniform yellowing, interveinal yellowing, new growth, old growth, and blotchy yellowing.
Interpret chlorosis by location and pattern first, then compare pH, EC, feed history, root condition, plant stage, pest evidence, and progression.