Thank you for the information. I just applied mulch around my shrubs, and the Sweet Olive is looking much better today. Most of the white spots have turned brown like scarring, and there are fewer spots, so it isn't spreading. We've had a lot of rain this past week, so I'll make sure it gets a good watering every week.

Does the container have sufficient drainage holes? Is the potting medium coarse and fast draining or dense and mucky? The leaves look exceedingly chlorotic. What is your fertilization routine? We can't tell you if the plant is over or under watered; only you can do that. Improper watering is another issue entirely. When little sips of water are doled out instead of a complete drench, hydrophobic pockets can form within the soil volume. Disease symptoms can occur if cultural conditions are chronically poor. A waterlogged soil, for example, can result in the onset of root and foliar disorders, even leading to the death of a plant. I think that you need to evaluate the existing conditions. Whether or not these plants can recover after being cut back will probably depend on a complete change of potting medium, maybe root pruning, a watering routine that allows for drying cycles in between drenchings, and a common sense fertilizer program.

Orchid leaf

Ken, although spots are brown, are they semi-translucent? Like weaved cloth? lol As you stated, 'IF' there is a problem, it could be a bacterial. There's too many types...to be honest, I'm unfamiliar with them. Some of my plants, 'mostly Dracaenas' get similar spots. I usually remove the leaf, or if on the edge, trim. My Dracaena, 'Song of India,' is outdoors. Last week, temperatures dipped in the 30's. I noticed several brown spots yesterday. Whatever, I hope your plant pulls through. As I stated earlier, other than the few spots, your Corn Plants looks terrific. Healthy foliage. Good luck.