In 1992 symptoms consisting of twig dieback, canker-like deformities, and often, mortality of all sizes of container-grown flowering dogwood trees (Cornus florida L.) was frequently observed in northern Florida where nursery production of dogwood is concentrated. Twigs, branches, growing points, and
Flowering dogwood (Cornus florida L., Cornaceae), is a small deciduous tree whose showy inflorescences, clusters of bright red fruits and red and purple leaves in autumn, make it a much appreciated ornamental. In June of 2008, severe outbreaks of a previously unknown blight were observed in several
Although fungal bioluminescence is well documented, the ecological significance is poorly understood. We examined bioluminescence by three sympatric species of Armillaria wood decay fungi, differing in parasitic ability. Luminescence by mycelia of four genets of A. gallica, A. mellea and A.
Dogwood canker is a serious production problem of unknown etiology. From May 1985 through April 1989, cankers from 290 flowering dogwood trees in 15 separate nurseries were sampled for nematodes. Seventy-three percent (213) of the cankers contained nematodes. Panagrolaimus rigidus (Schneider) Thorne