Extreme sap excretion - Ask Extension
Hello we have two large evergreens on our front yard. They both have massive amounts of sap/ resin globbing up on the bark, when broken off the lumps...
Knowledgebase
Extreme sap excretion #870225
Asked May 27, 2024, 2:26 AM EDT
Hello we have two large evergreens on our front yard. They both have massive amounts of sap/ resin globbing up on the bark, when broken off the lumps of sap have fat white worms in them! I would like to know what is wrong with my trees if they can recover and be less sappy or if we should cut them! I am unsure of the kind of evergreen but the needles are short and not in sets, we live in burns or , thank you , Mindy
Harney County Oregon
Expert Response
Excessive pine tree sap loss results from injuries like broken branches in a storm, or accidental cuts made by weed whackers. It can also result from borer insects who dig holes in the tree. If the sap is dripping from multiple holes in the trunk, it is likely borers.
Thank you for your reply! The sap is not from any injury’s although since I’ve noticed it we have had to trim the tree! It was ultra sappy previously! Is there a way to take care of borer insects? I’d like to save the trees but the current state of sappiness make that almost impossible!
With pine species, tree debris produced during the spring and summer is highly attractive to breeding bark beetles. When possible, schedule tree work such as thinning, pruning and removal for fall and winter (October–December). Tree debris and slash may be left on the ground during fall and winter (best if it is scattered). When work on pine trees is done during spring and summer (hazard trees or other urgent needs), tree debris three to eight inches in diameter should be disposed of within two months via chipping, burning or hauling away.
Your tree seems to be expelling the larvae ("worms in the sap") so that is a good sign. Keep your tree health and hydrated so they can resist any infestation.
Attached is an informative publication for you to check out:
https://knowyourforest.org/sites/default/files/documents/Managing_insects.pdf
Your tree seems to be expelling the larvae ("worms in the sap") so that is a good sign. Keep your tree health and hydrated so they can resist any infestation.
Attached is an informative publication for you to check out:
https://knowyourforest.org/sites/default/files/documents/Managing_insects.pdf
