Brown Select Satsuma Leaf Problem

14 years ago

This leaf was pulled from my ing round Satsuma tree that is otherwise in very good health. The tree is about 5 years old and about 6 feet tall and say 8 feet wide.

The number of leafs affected are say around 10 all other leaves in good health.

The brown on the back of the leaf will not rub off. The yellowing is right above the brown on the bottom side of the leaf.

Any thoughts?

Brown Select Satsuma Leaf Problem

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Comments (4)

keithdphan
14 years ago
i'm gonna guess the brown stuff is fungus damage caused by honeydew excretion by aphids. if this is true, first question is if you see ants climbing up the tree, if so, get rid of ants. then you can let nature control aphids (ladybug/other). of course you can spray with 1-2% horticultural oil if it gets really really bad.
Randy31513
Original Author
14 years ago
No, ants, and no sooty mold.
I did several googles but could not pin this one down.
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Randy31513
Original Author
14 years ago
The only thing I know to do is strip the bad leaves in hopes of isolating the problem till I find out what causes it.
Randy31513
Original Author
14 years ago
keithdphan I forgot to thank you for your reply. I will do some more googling on the fungus you mentioned.