Pinon Pine Trees Have Gotten Thinner And Are Dropping Older Needles

Question From: Wiley, Colorado, United States
Q: I have pinon pine trees that are 20 years old. We have been in a drought for over 10 years but I have been faithful to water them. The last few years they have been getting thinner to where you can see through them. They are dropping needles on the inside of branches but are still putting on new growth at the tips. This started on one end of the row and has moved down the row to previously thick trees. Help!

A: I live in Michigan and know nothing about growing Pinion Trees. But if they were mine I would get an on-site inspection of the trees by a certified arborist. To find one in your area go to and enter your zip-code. Best And Happy Yardening, Nancy