Caterpillars and Pin Oaks
I have a "Pin Oak" tree. There are these (I don't know what you would
call them)slug, not slug. I just planted this tree 3years ago. It
stands 7 feet tall and is no wider than 3 feet. Any way, these so-call-
ed slug things, start out very small, approx. 1mm wide by 2-3mm long.
They grow in size, by eating or sucking the juice from the tree. They
seem to eat or suck the new formed buds from the tree. I find them
underneith on the branchs, but more so toward the ends. These pests
are cleverly hidden. You wouldn't know their an insect until you look
very close such as I did.
Ants are attracted by them. The ants can't harm them because they
have some type of armor on the out side. The ants are how I found these
pests. They grow in size and when you poke them, their pusy like.
I never see them move. I only see new little ones each day.
There killing my tree I planted for my son!!! Please, what are they
Sounds like caterpillars.
contact your local agricultural extension office for help.
Anthony R. Brach, Ph.D.
Click here to return to the Botany Archives
Update: June 2012