PHOTO OF THE WEEK, Mystery Disease?
On Aug 12, 3:14*pm, Rick wrote:
jadel wrote:
On Aug 12, 10:05 am, Jack Schmidling wrote:
Returning home from our Friday trip to town, we spotted this strange
apparition in a tree along the road.....
I need some help identifying it.
One point of clarification. *As I said in an earlier reply, it's a
'witch's broom.' They are all caused by a mutation in a branch bud.
Nobody is sure what triggers the mutation; viruses, injury and
spontaneous mutation have all been suggested as possible causes.
Pines and spruces seem to be very susceptible to them.
An analogy would be 'cresting' *in cacti.
BTW, White Pine Blister Rust doesn't look like that. *Branches with
WPBR just turn brown, wither and die; they don't produce that kind of
bushy excresence.
J. Del Col
There are rust pustules also
Yep, nasty-looking stuff.
J. Del Col
|