European mistletoe continues to spread in Sonoma County
AuthorsFrank G. Hawksworth
Robert F. Scharpf
Authors AffiliationsF. G. Hawkworth is Plant Pathologist with the USD A Forest Service, Rocky Mountain Forest and Range Experiment Station, Fort Collins, Colorado; R. F. Scharpfis Plant Pathologist with the USD A Forest Service, Pacific Southwest Forest and Range Experiment Station and Faculty Afiliate with the Department of Plant Pathology, UC Berkeley; M. Marosy is Plant Pathologist with the USDA Forest Service, Pacific Southwest Region, Forest Pest Management, San Francisco.
Hilgardia 45(6):39-40. DOI:10.3733/ca.v045n06p39. November 1991.
European mistletoe (Viscum album) was established in Sonoma County about 90 years ago and has spread a maximum of 7.5 miles and an average of 5 miles from its point of introduction in Sebastopol. The mistletoe now occurs in the nearby communities of Graton, Santa Rosa, Fulton, Cotati, Forestville and Occidental. It has been found on 23 different deciduous trees, but is most common on silver maple, apple, black locust, red alder and Fremont cottonwood.
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Toxics, food safety, water quality “most important”: How California educators and CE directors view “agricultural literacy” programs
Sidebar: Snapshots of current agricultural literacy programs
New strain of sweetpotato whitefly invades California vegetables
Farmworker injury and illness: statistical guides to prevention
Strategies needed for oak protection: Despite landowner favor, oak groves likely to diminish in size and number
Stress-adapted landscapes save water, escape injury in drought
Subsurface drip irrigation of tomatoes: Drip system design, management promote seed emergence
San Joaquin River salinity: 1991 projections compared to 1977
Leaf removal in wine grapes: a case study in extending research to the field
Imported parasite of greenhouse thrips established on California avocado
Owning harvest equipment versus custom hiring: the case of walnuts
Genetic male sterility in wheat (Triticum aestivum L.): Reproductive characteristics and possible use in hybrid wheat breeding