brown yews

Robert Guy guy at unixg.ubc.ca
Wed Apr 23 21:22:17 EST 1997


Cathy - your yews may be in trouble, but they may not.  Yew trees
accumulate a red-brown pigment called rhodoxanthin during winter (and
also in the summer if droughted and/or in a bright light situation).  It
probably has a protective role and is not due to damage.  If the
brownish appearance doesn't disappear after a couple of weeks of warm
weather, then perhaps something else is going on.  I would wait a bit
and see what happens.
-Rob Guy



More information about the Plantbio mailing list