Black Sapote, Mango and Jackfruit problems.

[Generic_UserID]

Hey Guys, first post on the site.

Looking for some advice. Living in Western Australia, and having issues with these three plants:


Black Sapote: Top leaves have gone lime green, but the troubling part is that there is black on the stems and under the leaves.



Mango stem has gone black, too. Anthracnose?



No idea what is wrong with the jackfruit. Early-middle of winter it has been in an air pot, and indoors under my grow light shelves. The issue got worse, so come spring I moved it outside and reported it into a standard pot so it would hold water better.

Any help would be amazing, thanks.

[jako9403]

I don’t live in the tropics but my guess is a fungal infection.

[Canvo]

Must admit I can’t make out the black Sapote issue from the photo, their stems do turn from green to quite dark naturally. My guess with the Jackfruit is just a bit chilly, my small plants don’t love winter, should start to pick up with the warmer weather

[DurbanDude]

That could just be sunburn on the black sapote. Mine had black branches because there was too much organic matter or fertilizer in the soil and roots didn't like that so they couldn't grow to absorb more water.

The jackfruit might have salt or fertilizer burn.