Proper pruning of Austrian pine
Editor’s note: This article is from the archives of the MSU Crop Advisory Team Alerts. Check the label of any pesticide referenced to ensure your use is included.
off, I must begin with a warning. If you are a lover of Austrian pine,
then you may find the following offensive. If you are a lover of
Austrian pine and are inclined to write nasty letters to those who
disparage this common landscape conifer, then please skip to another
article. This story is about two Austrian pine trees that have graced my
property for the past twenty years. They didn’t look that good twenty
years ago and have not improved in their appearance until this past
week, when my neighbor, Joe and his crew showed up to do a little
corrective pruning. The type of pruning employed by Joe is commonly
referred to in the lab as “basal pruning.”
Austrian pine samples are among those that are most frequently submitted to the lab. This, in and of itself, is probably not a good thing for any woody ornamental. Declining Austrian pine samples invariably show either Sphaeropsis (aka Diplodia tip blight) or Dothistroma needle blight. Both are quite capable of killing the tree. As a result, Austrian pines tend to be short-lived, which in my opinion is a blessing.
The accompanying photographs tell the rest of this story. Any further words on my part will only detract from the photographs. (view photos)