Diagnose What's Wrong With My Plant

Leaves yellowing, growth stalled, an odd coating on the stems, and no clue why. Describe the symptoms and the conditions it is growing in, and this runs a proper diagnosis: the three most likely causes ranked by probability, the visual and contextual clues that point to each, and what to do. The triage a plant gets before you write it off or drown it in feed.

My {plant_name} is showing the following symptoms: {symptom_description} (e.g. yellowing lower leaves with brown edges, stunted growth, white powdery coating on stems). It's growing in {growing_conditions} (e.g. outdoor raised bed, partial shade, watered twice weekly). Walk me through a structured diagnosis: first list the three most likely causes ranked by probability, explain the key visual or contextual clues that point to each, then for each cause give me a specific corrective action I can take this week, a preventative measure for next season, and any products or home remedies that work. If the symptoms could indicate something serious like a soil-borne disease, flag whether I should remove and dispose of the plant.