My lemongrass bushes are sad looking. I think they got a fungus Rust Puccinia nakanishikii.
I removed all 3 bushes and worked my way on them - removed all dead leaves and trimmed the diseased ones.
I am soaking them overnight on a solution of water and sodium hypochlorite (a fungicide).
Tomorrow I'll plant them on separate pots and take it to Austin with me.
I have been taking pics of my steps. Hopefully we will see improvement.
It is so sad to see such a beautiful healthy plant get sick and down to a few strings.
I take any suggestions as well.