What are these grubs and bugs in bark?
What are these? I found them in the bark of the tree that was killed suddenly. Kiss one 80 year old noble fir goodbye (tree suddenly died). The sudden increase in sap holes in the neighboring noble fir (and none of the Douglas firs show signs) makes me believe that the ones that could move did. The top of the tree ~15 feet is now dead) We're treating the trees with an over the counter pesticide filled fertilizer. What else should we do?