Hi Lauri,

That looks like rust to me... You will need to treat it with a fungicide. I use "Fung Away" (systematic) for my plants. I am sure there are lots of others that will work as well.

HTH's,

Joe

My gosh, my leaves are rusting. Who'd have thought? Thanks Joe!
Lauri

Hi Lauri,

NP. It is the end of the season...I am in So Cali and the leaves on some of my plumies are starting to fall off, so you can just let them fall off and not worry about it. I do have one that doesn't drop it's leaves at all.

Joe

I have the same spots but only on the above side,the underside is clean ? started by looking like spidermite damage,treated with anti fungus and anti spidermite(no succes),looks also like rust to me.
Had a botanic come to see my plants,did not knew the answer.
If anyone have suggestions they arew welcome!
Consider to have the leaves analysed by special agriculture laboratory

greet,Michael

Lauri,
Florida is known for rust around this time of year. Best thing to do is cut those leaves off before it spreads and discard in a bag. Rust will not kill your plant but just make it look unsightly.

Thanks for all the info. Glad for that plant it is the end of the season. Gotta love this here forum!
Lauri

Exotic Plumaria suggested that using a fungicide with Bayleton is the best way to control rust. I just got some and will keep the list informed as to how well it controls rust, which is obviously what has infected the leaf in Kevabear's photo