It doesn't matter how long you work in a certain field, there are always things to learn. I'm showing my ignorance, but today I had my first experience with Mimosa Wilt. This is a soil-borne disease which only affects mimosa trees.
Leaves will begin to yellow, wilt, and then drop off the tree. On the one I saw today, sap was oozing out of the tree where it made 2 foamy puddles at the base of the trunk. There was a definite fermenting odor, not pleasant-- and June bugs, yellow jackets, and flies were eating up the exuding sap.
When I got the call, my first reaction was 'someone actually wants one of these invasive plants to live?'. Most of the calls I get concerning mimosa are 'How do I kill it?'. I wasn't prepared. But come to find out, this disease is very common.
Maybe I've never gotten a call about this since anyone with an ailing mimosa tree wanted it to die anyway.