New concolor fir turning brown

Asked July 30, 2013, 2:29 PM EDT

In May, I had 14 8-ft concolor firs planted here in rural Longmont (Colorado) on Nelson Road. One of them is turning pale green and brown. Its new growth has shriveled and turned brown. What is going on? It had the same drip water irrigation, pine beetle treatment and liquid fertilizer as its siblings. Please advise.

Boulder County Colorado

1 Response

This is hard to diagnose without seeing the tree or a sample of the dying parts. If possible, could you bring in a sample for diagnosis to the Extension Office at 9595 Nelson Road at the Fairgrounds. There is a $7 fee for Boulder County residents. Please bring or email (mggpa@bouldercounty.org) a picture of the whole tree, and bring in a sample that includes both healthy and sick looking parts of the tree. The office is open from 9 to 5 on weekdays. It will take up to 10 business days to get a diagnosis. You might also contact the nursery where you bought the trees and see if they have any information.