Tamarack did not drop needles
I have a 25 foot tall tamarack tree, about 10 years old and very healthy. For some reason, it only dropped about 10% of its needles this fall. It normally drops them all. Is this normal that sometimes they don’t drop their needles? Thank you
Do you by any chance remember what kind of Tamarack this is.
Sorry, I don't. I didn't realize there were different species of Tamarack. Would close up photos of the needles and bark enable you to tell?
I am assuming the tree is the common Tamarack (Larix laricina), but some up close pictures of the needles would be helpful.
I think the tree is going to be OK. It is a case of what is called "marcescence" which is a situation where a deciduous tree does not drop its leaves in the fall. Here are a couple of references:
I will be seeing Gary Johnson (Professor in the Department of Forest Resources at the University of Minnesota0 this week-end and will get back to you if he thinks it might be something different.