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Old 05-13-2017, 02:31 PM   #6 (permalink)
edwmax
 
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Default Re: Is this Black sigatoka?

Quote:
Originally Posted by katykat View Post
The spots are spreading and the lower leaves are dying--turning yellow and brown and curling. New cigar leaves all have some black areas near the tips. I wish I could upload more pictures! Can anyone tell me how best to treat this? I've read that there is a new organic treatment --Timorex Gold--but it's not commercially available in the U.S. yet.
If you think this is a fungus, then spray with copper sulfate. It can be bought off the shelf or you can mix your own. I use a lot, so I mix my own and filter through a paint cone filter so it will not clog up it sprayer.

However, this does not look like a fungus to me, but may be an insect. Either those tiny spots are the insect or the bit mark left after the insect feed. Look in the top of the pstem for the hidden infestation.
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Last edited by edwmax : 05-13-2017 at 02:39 PM.
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