Beginner Gardening: 1 stalk of my Corn Plant's leaves are pale, drooping & dying, 1 by artisun

artisun wrote:
Thank you 3jsmom31 for your help.
I wrapped a wire rod w/cloth to check the corn plant for dampness. Is this how I should wick? Terry? Sham? Please advise as I cannot move it from the basket which is lined w/a plastic bag & it's plastic pot is tightly fitted into it.
It is not mites as I checked it with a high magnification jeweler's lens.
I did fertilize both full strength. I live in Florida & just shut the A/C which is usually at 80-81 degrees about a week ago & the room is quite light.
Do indoor plants know when it's winter anyway?
The Elephant Ear is getting worse by the minute. Should I cut the yellow leaf now or wait until it's brown? Should I not water it & let it go dormant? (I can transplant this one if needed.)