What are the problems with my plants’ leaves and what can I do to correct them?

I’m attaching photos: Photos 1 & 2 are of my plumeria. Photos 3 and 4 are of my desert rose plants. Photo 5 is my gardenia. Also, my desert roses and my gardenia are not blooming. Please help.

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1 Comment To "What are the problems with my plants’ leaves and what can I do to correct them?"

#1 Comment By BushDoctor On 10/24/2019 @ 9:47 am

They all look to be suffering from a fungal/bacterial infection.

It is best to make sure that all containers have drainage holes to let all extra water out. If the containers do not have drainage, then this will be to blame. Sitting in water for extended periods will cause root rot, almost always, unless the water is aerated.

I would recommend treating with a fungicide. This article will help: https://www.gardeningknowhow.com/garden-how-to/info/using-fungicides-in-garden.htm ^[1]

If any of the containers lack a drain or the ability to rid itself of extra water, then I would switch containers to one that does. You could also just keep those containers from getting any water until they are dry almost all of the way down. This would be an alternative to switching pots.

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