Diagnosing my Baptistonia Echinata

[Fredmax]

I'm wondering if anyone's familiar with the affliction on the leaf of my recently acquired Baptistonia.

I've had it about a month and noticed a soggy look on the top of the leaf so cut it off and relocated it to a location with better air flow. I also thought of mounting it to as was in a tight sphagnum tube as some had success with this method.

Sadly the leaf has continued to decline and will be too late soon, I have another one of these that's starting to do the identical thing.

My g/h's lowest temp is 14c at the moment and humidity is 70 , low to medium light and reasonably good air flow. It has however just come from a warmer climate, whereas mine is starting the autumn cool (15-23c) , my next step is moving it indoors as it's leaf is telling me it's not happy. Just seeing if anyone had any thoughts.

Thanks
Fred

[Ray]

Looks like erwinia to me, a bacterial infection that likely originated where you got the plant - i.e., hot and humid conditions. Most of the time, systemic treatments containing copper are recommended.

[Fredmax]

Thanks for that I just bought some Mancozeb, would that help for this infection.

[Ray]

Mancozeb is a fungicide. Erwinia is a bacterial infection. No, it will not work for this.