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Old 08-27-2018, 08:29 PM   #4 (permalink)
zfallon84
 
Location: Jacksonville, FL
Zone: 9a
Name: Zach
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Default Re: Can you confirm my Suspicion: Black Sigatoka

I just wanted to give a mid-term update so that anyone who does a forum search in the future might have some examples.

What I have noticed, in my area, while taking the dogs on a walk, is that the high rainfall and humidity promotes fungal growth on leaves. I noticed a Sweetgum tree with the same black spots, surrounded by a chlorotic halo. I also have noticed that my figs also have this (fig rust), and a few of my Paw Paws (Asimina Triloba?) have black fungus on their leaves. I've also noticed that some of my other bananas have what some folks call "swamp spot", which is another fungus that affects plants. I'm still treating every few days with the Neem oil. I've also noticed that the rain has washed the micronutrients out of my planters- I have magnesium, and manganese deficiencies in different plants.

Another problem that was discovered is that our rental property has a fungus gnat problem. The larvae were reeking havoc on my garden vegetables. And I can only assume that they were also affecting my bananas' roots. I did have to handle that with a pesticide treatment. We couldn't go outside with have flurries of flies all over us. For further treatment, if anyone has any organic methods to solve this problem, please let me know.

I will post some pics in a few weeks. The newest leaves on my Manzano are coming up really healthy. I think things should be good.
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