Hilgardia
Hilgardia
Hilgardia
University of California
Hilgardia

Grape growers report losses to black-foot and grapevine decline

Authors

Heather Scheck
Stephen Vasquez
Diana Fogle
W. Douglas Gubler

Authors Affiliations

H. Scheck is Plant Pathologist, Office of the Agricultural Commissioner, Santa Barbara County, and was Post-Doctoral Scholar; S. Vasquez is Graduate student; D. Fogle is Agricultural Biological Technician, California Department of Food and Agriculture, Sacramento. This research was funded in part by the California Grape Rootstock Improvement Commission and the California Fruit Tree, Nut Tree and Grapevine Improvement Advisory Board; W. D. Gubler is Extension Plant Pathologist, all with the Department of Plant Pathology, University of California, Davis.

Publication Information

Hilgardia 52(4):19-23. DOI:10.3733/ca.v052n04p19. July 1998.

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Abstract

Sporadic but increasing incidence of two new diseases, which we have named “black-foot disease” and “Phaeoacremonium grapevine decline,” are taking a toll in California's table and wine grape vineyards (Scheck et al 1998a, 1998b). Although the full scope of the problem is not yet measured, grape growers throughout major production regions in California have reported economic losses from replanting costs. Symptoms of these diseases are almost indistinguishable from each other; the diseases are in fact the same that have occurred in grapevines in other places in the world and in older grapevines here. Our research reveals that black-foot is caused by Cylindrocarpon obtusisporum, and grapevine decline is caused by Phaeoacremonium species (P. aleophilum, P. chlamydosporum, or P. inflatipes).

References

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Scheck H, Vasquez S, Fogle D, Gubler W. 1998. Grape growers report losses to black-foot and grapevine decline. Hilgardia 52(4):19-23. DOI:10.3733/ca.v052n04p19
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