Q.Fir trees browning from bottom up
I have two small fir trees, about 3 feet high. They are browning from the bottom up. One base about 8 inches of browning, the other is almost 1.5 foot brown. The top halves are fine. Is there anything I can do to repair them?
It could be attributed to any number of things but yes, there are measures you can take to help your tree.
Winter injury - strong possibility especially since we are coming off of the winter months:
https://ask.extension.org/questions/171348#.VS8MzZOGNps
A needle blight or needle casting disease:
http://msue.anr.msu.edu/news/why_are_my_douglas_fir_turning_brown
http://homeguides.sfgate.com/blight-firs-needles-33543.html
An insect infestation (look for signs of insects): Pests such as mites, aphids, etc. can damage the tree. If you do have an insect and identify it, do a search on our website for that specific insect and you will find an article with treatment options.