andrewly
Newly Registered
Posts: 8
Joined: Sun Nov 06, 2016 6:40 pm

Black spots on leaves, and on mangoes.

A lot of the leaves on my mango tree (Tampa, FL) have these black spots.
20170507_121132.jpg
My google efforts have identified Bacterial Black Spot as the leading suspect, but I'd appreciate any knowledgeable second opinions.
20170507_121244.jpg
Meanwhile, some of the mangoes have black areas, as well. Could also be BBS from my reading, but not exactly sure. I have mostly seen this on mangoes that have fallen, not ones still on the tree.

JONA
Mod
Posts: 806
Joined: Fri Jul 25, 2014 11:11 am
Location: Sussex. England

Re: Black spots on leaves, and on mangoes.

Hi andrewly,
Afraid I'm no mango grower....but...looking up for suggestions....check anthracnose. Symptoms look very similar.
Sorry I couldn't help more.
John

imafan26
Mod
Posts: 11363
Joined: Tue Jan 01, 2013 1:32 pm
Location: hawaii, zone 12a 587 ft elev.

Re: Black spots on leaves, and on mangoes.

Mango anthrachnose is a common disease. There aren't a lot of things you can do with a big tree, you have more options with a small one. Good sanitation is important to keep the spores from spreading. Pruning to open up the canopy so the leaves dry and if the tree is small enough you can use preventive anti fungal sprays.

https://www.ctahr.hawaii.edu/oc/freepubs/pdf/pd-48.pdf
Happy gardening in Hawaii. Gardens are where people grow.

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