Pests and Diseases forum→Congo Philodendron with weird brown smudges

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wendiimac
Apr 21, 2018 6:41 PM CST
I've had this Congo for about 6 months now and literally overnight it started developing these muddy, brown patches in the middle of the leaves. It's not like a sunburn or anything. It's randomly across the centre of the leaves and makes them very bendy. Its only really apparent in two of the leaves, but I can notice a little spot on another developing. Does anyone know what this is or how I can stop it?
Thumb of 2018-04-22/wendiimac/0ca591


Thumb of 2018-04-22/wendiimac/784d4c

Name: Will Creed
NYC
Prof. plant consultant & educator
Image
WillC
Apr 27, 2018 9:43 AM CST
It may be a physical/environmental cause, such as sunburn or some chemical damage. Exposure to very high or low temps are also possible causes.

If there have been no recent environmental changes, then it may be a more systemic problem. The photos don't show the entire plant so it is hard to diagnose. However, the pot looks very large with very dense potting soil that appears to be very dry. There may be root problems that are now causing foliage damage. Better information would be helpful.
Will Creed
Horticultural Help, NYC
www.HorticulturalHelp.com
Contact me directly at [email protected]
I now have a book available on indoor plant care

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