R REW New Member Joined May 12, 2018 Messages 1 Reaction score 0 Location Indiana May 12, 2018 #1 Willow tree in my yard has spongy area in middle of trunk. Upon closer examination, there are several small holes like made by a drill bit. Is this a disease or insects? What can be done to save tree? See pics for more info.
Willow tree in my yard has spongy area in middle of trunk. Upon closer examination, there are several small holes like made by a drill bit. Is this a disease or insects? What can be done to save tree? See pics for more info.
blades Addicted to ArboristSite AS Supporting Member. Joined Nov 19, 2008 Messages 4,055 Reaction score 3,067 Location SE WI May 12, 2018 #2 some sort of fungal rot + borers of one type or another.