Author Topic: Help diagnosing mango leaves  (Read 1018 times)

stephen

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Help diagnosing mango leaves
« on: May 01, 2020, 01:39:21 AM »
Hi, everyone! I hope you're all well. Just wondering if you can please help me figure out the cause of these black spots on my young mango tree that I just received. Are these something I should be concerned about? If so, what should I do to treat them? I'd appreciate your wisdom. Thank you!







Oolie

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Re: Help diagnosing mango leaves
« Reply #1 on: May 01, 2020, 04:08:55 AM »
Looks like anthracnose, a common issue for mango trees.

stephen

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Re: Help diagnosing mango leaves
« Reply #2 on: May 01, 2020, 10:19:19 AM »
Would you go ahead and spray it with copper?

Oolie

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Re: Help diagnosing mango leaves
« Reply #3 on: May 01, 2020, 07:58:04 PM »
The damage is done, if it doesn't spread you should have no issue. Not like we will see rain again for 3+months, plenty of time for new flushes to harden off. Just make sure not to supply overhead watering, and you should be golden.

stephen

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Re: Help diagnosing mango leaves
« Reply #4 on: May 02, 2020, 03:16:42 AM »
Thanks, Oolie! I'm so new to all this, so I don't really know how anthracnose works. Is the fungus there on my plant, ready to spread when the right conditions come? If so, would it be wise to go ahead and spray the plant with copper so it at least protects the unaffected areas from future damage?

Oolie

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Re: Help diagnosing mango leaves
« Reply #5 on: May 02, 2020, 04:51:50 AM »
Quote
Apply the spray before rainy periods, because fungicides can protect only healthy tissue and donít eradicate existing infections.
http://ipm.ucanr.edu/PMG/PESTNOTES/pn7420.html

 

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