Plant Edema: Causes, Symptoms, and Treatment - Okra In My Garden
What Is Edema on Plants? | AeroGarden
How to treat Edema | Planta
Greenhouse & Floriculture: Edema and Intumescence | Center for Agriculture, Food, and the Environment at UMass Amherst
Oedema Is a Corky Quirk - Indiana Yard and Garden - Purdue Consumer HorticulturePurdue University Indiana Yard and Garden – Purdue Consumer Horticulture
Edema of Indoor Plants | University of Maryland Extension