Phalaenopsis Leaf Liquefying: Bacterial Rot, Remove Entire Leaf

Two Phalaenopsis near window, flowering. One large mature leaf liquifying from tip inward—limp, disintegrating. Rest of leaf fine. Rot spreading outside-in. Not in books.

Likely Bacterial Infection

Remove ENTIRE leaf to base. Use sterile cutter (industrial single-edge razor)—discard after ONE cut. If liquid touched other leaves, remove those too.

Survival Chance

Plant may look odd but surgery may save it. New leaves grow from crown in 1–2 years.