| Image |
Descriptor |
Description |
Photographer |
| 1673095 |
Damage |
|
G. Keith Douce |
| 1673096 |
Damage |
|
G. Keith Douce |
| 1673097 |
Damage |
|
G. Keith Douce |
| 1860045 |
Damage |
fallen pecan twigs girdled |
Lacy L. Hyche |
| 1431027 |
Damage |
girdled twigs |
Lacy L. Hyche |
| 1431028 |
Damage |
closeup of the end of a girdled twig |
Lacy L. Hyche |
| 1431029 |
Adult(s) |
|
Lacy L. Hyche |
| 1431030 |
Adult(s) |
note the match of beetle color to that of bark of hickory branch |
Lacy L. Hyche |
| 1431031 |
Egg(s) |
in bark of pecan twig |
Lacy L. Hyche |
| 1431032 |
Larva(e) |
full-grown larva; larva is preparing to pupate and has plugged the tunnel behind it with wood chips |
Lacy L. Hyche |
| 1431034 |
Pupa(e) |
|
Lacy L. Hyche |
| 1431035 |
Damage |
typical adult feeding sign on bark of hickory twig |
Lacy L. Hyche |
| 1431036 |
Damage |
typical fresh girdle on hickory twig |
Lacy L. Hyche |
| 1431037 |
Egg(s) |
Egg niche at the base of a secondary twig. Typically, eggs are laid at bases of leaf buds and secondary twigs. |
Lacy L. Hyche |
| 1431038 |
Egg(s) |
Closeup of egg niche at the base of a secondary twig. Typically, eggs are laid at bases of leaf buds and secondary twigs. |
Lacy L. Hyche |
| 1431039 |
Damage |
Young hickory with girdled stem. Note that this stem has been girdled in two places. The upper segment broke and fell as usual; the lower remained in place and the larva completed development in the attached dead segment. |
Lacy L. Hyche |
| 1431040 |
Damage |
Young hickory showing typical damage; leader and branches girdled. |
Lacy L. Hyche |
| 1431041 |
Damage |
Young hickory showing typical damage; girdled leader. |
Lacy L. Hyche |
| 1431042 |
Damage |
girdled hickory twig showing holes and frass ejected by fully grown larva. |
Lacy L. Hyche |
| 0014049 |
Damage |
|
Gerald J. Lenhard |
| 0014050 |
Damage |
|
Gerald J. Lenhard |
| 0014055 |
Damage |
oviposition site |
Gerald J. Lenhard |
| 2721081 |
Damage |
oviposition site |
Gerald J. Lenhard |
| 0007066 |
Damage |
Pencil-sized twigs of pecan, hickory, elm, and other tree species are commonly girdled in the fall. It is not unusual to see branches on the ground under attacked trees or to see broken branch "flags" hanging from the crown. |
Herbert A. "Joe" Pase III |
| 0007067 |
Damage |
By circling the branch many times, the adult female will cut the branch with a very neat and precise cut. The cuts are so unique that it is easy to tell when a twig girdler has visited the tree. |
Herbert A. "Joe" Pase III |
| 0007068 |
Damage |
The adults will feed or chew on the bark of severed branches causing characteristic "scratch" marks on the twigs. |
Herbert A. "Joe" Pase III |
| 2666021 |
Adult(s) |
and damage |
Clemson University - USDA Cooperative Extension Slide Series |
| 1435156 |
Adult(s) |
adult twig girdler and its typical girdle of pecan twigs |
Clemson University - USDA Cooperative Extension Slide Series |
| 2733049 |
Adult(s) |
and damage |
James Solomon |
| 2733050 |
Damage |
|
James Solomon |
| 3046013 |
Damage |
|
James Solomon |
| 3057048 |
Adult(s) |
and damage - freshly girdled twig |
James Solomon |
| 3057049 |
Adult(s) |
and damage - adult girdling twig (note shape and position of head) |
James Solomon |
| 3057051 |
Larva(e) |
in gallery in stem |
James Solomon |
| 3057052 |
Damage |
all major stems girdled |
James Solomon |
| 1626097 |
Adult(s) |
After laying an egg beneath the bark of a twig, the beetle chews a continuous notch around the twig which girdles it. The girdled twig soon drys out and breaks off; the larva develops inside the fallen twig on the ground. Damage to the host trees including elm, oak, hickory, dogwood, and others is generally insignificant. |
John A. Weidhass |
