My 4 mango plants (from 5 to 8 months) are now struggling with weird disease. It started about 3 weeks ago, lower leaves got brown and finally gone. Now I have noticed brown thing on younger leaves.

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Plants sit in pots, in potting soil, with good light, being watered twice a week. Last month I gave them organic fertilizer (5-5-5), not sure if that could be the cause.

I would be thankful for any hint.

  • Try grabbing some tweezers and scraping a bit of it off. Does it come off easy or does it seem to be inside the leaf itself or fused with the leaf itself? – Rob May 1 '19 at 18:44
  • Hi Rob, it's inside the leaf, can't really scratch it. – pdziewonski May 2 '19 at 6:34
  • It's hard, for me at least, to tell exactly whats happening. It seems to be a fungal infection of some kind. You might try a fungicide spray, just follow the directions on the bottle. – Rob May 2 '19 at 22:26

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