They create an extremely long and narrow mine in young twigs.

The branches become long and the younger twigs are fuzzy with white or light brown hairs.

The young twigs are reddish and grow gray with age.

In winter, deer will browse the buds and young twigs.

The second group of cuttings was young twigs from the 15 rarest casualties.

It has gray bark on its branches and the young twigs are purple in color.

The young twigs are covered with very fine hairs (puberulent).

They mine the stem of young twigs and feed on the soft core up to the woody part.

They bore in young twigs of their host plant.

They mine the young twigs of their host plant in summer and the beginning of fall.