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Intraspecific variability of Geosmithia morbida the causal agent of thousand cankers disease, and effects of temperature, isolate and host family (Juglans nigra) on canker development
Since the mid-1990's widespread mortality of Black Walnut (Juglans nigra) in the western United States has been noted. This mortality is the result of aggressive feeding of the Walnut twig beetle (Pityophthorus juglandis) ...
The biology of Geosmithia morbida and susceptibility of walnut and hickory species to thousand cankers disease
Since 2001 widespread mortality of black walnut (Juglans nigra) has been reported in Colorado, USA. Affected trees initially show a yellowing and thinning of leaves in the upper crown, followed by twig and branch dieback ...
Information on emergent insect associated tree diseases including epidemiological studies of drippy blight disease of oak and thousand cankers disease of walnut
Contributor:Sitz, Rachael A.
Two emergent disease complexes called drippy blight and thousand cankers have become injurious to hardwood trees in communities across the urban corridor of Colorado. In order to better understand these disease complexes, ...