|
|
Disease cycle of Dutch elm disease. Photo courtesy of American Phytopathological Society.
Overland spread of the disease is caused by bark beetle feeding in the upper canopy. Beetles commonly feed in branch crotches. Photo courtesy of Robert Blanchette.
 Previous |
Next |
Back to Diseases of Deciduous Trees or Dutch Elm Disease
 |
(C) Regents of the University of
Minnesota. All rights reserved. |
|
 |
 |
