Answer: Based on your description I am not able to diagnose the problems with your trees. There are several serious pest and disease problems that can cause browning, but weather conditions and cultural conditions can also sometimes contribute to browning. You will need a specific diagnosis before you can begin to treat the trees. I would suggest you work with your local county extension to obtain a specific diagnosis of the problems with both trees and based on knowing that, determine how to proceed. I would also suggest you consult immediately with the retailer where you purchased the weeping pines if they are under warranty.
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