If the leaves are rolled up like cigarettes, it could be the "Oak Leaf
Roller" Right now the larvae are only about 1/8" (3mm) long. They are
yellowish green and have a dark head. Like Don said, try to open one of the
leaves and see whats inside.
In article <1998080118524100.OAA09850 at ladder03.news.aol.com>, mmemu at aol.com
>I have 3 year old Pin Oak seedlings that are showing a deformed curling at the
>tips of the new growth. All the new leaves are small and appear to be curled
>into a tight ball. Any ideas. These trees are in good bottomland soil and are
>in a mixed planting with Loblolly Pine and Tulip Poplar.