Yellowing pine needles and yellow green exudate - Ask Extension
Just notice yellowing/browning of pine needles— more distal than proximal to trunk, which has gummy yellow green exudate dripping over patches of st...
Knowledgebase
Yellowing pine needles and yellow green exudate #672836
Asked August 04, 2020, 2:10 PM EDT
Just notice yellowing/browning of pine needles— more distal than proximal to trunk, which has gummy yellow green exudate dripping over patches of stripped bark.
Dakota County Minnesota
Expert Response
We can't determine what's causing the tip die back by viewing photos. What we can see resembles tip blight or perhaps shoot moth or shoot beetle damage.
Go here to learn about tip blight:
Go here to learn about insects that damage pine shoots:
What we see on the pine trunk resembles evidence of damage caused by pine pitch mass borer or Zimmerman pine moth larvae.
For a more definitive diagnosis, ask a forester or certified arborist to assess the tree's condition onsite.
