| 0454016 |
Dutch elm disease |
Ophiostoma ulmi |
Elm tree severely attacked by Ophiostoma ulmi in late summer, showing a range of foliar symptoms. |
| 0656081 |
bacterial canker of poplar |
Xanthomonas populi |
Canker, girdling stem of a highly susceptible Populus tremula tree. |
| 0176085 |
large elm beetle |
Scolytus scolytus |
in the lower surface of elm bark |
| 0176086 |
large elm beetle |
Scolytus scolytus |
Feeding grooves in crotch of elm twig |
| 0454001 |
bacterial canker of poplar |
Xanthomonas populi |
Leaf scar canker caused by Xanthomonas populi on young stem of poplar. |
