Viewing post #1320263 by sooby

We have NGA members more experienced with citrus than me who will likely contribute later, but have you had cold weather recently and perhaps not fertilized much with nitrogen? See Figure 2 on this page and the comments in the paragraph above it on yellow vein chlorosis:

http://edis.ifas.ufl.edu/ch142

For a more in=depth look at yellow-vein chlorosis in citrus, here is a research article that investigated it.

http://fshs.org/proceedings-o/...