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U.S. Department of Energy
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Air pollution with relation to agronomic crops. V. Oxidant stipple of grape

Conference · · Agron. J.; (United States)
OSTI ID:5552544
Small, brown to black, discrete, punctate lesions occur on the upper leaf surface of grape grown in areas polluted by air-borne oxidants. The lesions are typically restricted to the palisade layer and may be easily distinguished from other grape disorders because of their stippled appearance. The disease can be incited in grape by fumigation with ozone. Toxic ozone leaves occur in the polluted air mass above the Los Angeles and San Francisco areas where oxidant stipple is found. Stipple has not yet been seen in the grape producing areas in the Coachella, Napa, Sacramento, and San Joaquin valleys of California. 4 references, 3 figures.
Research Organization:
Kaiser Steel Corp., Fontana, CA
OSTI ID:
5552544
Report Number(s):
CONF-571102-
Conference Information:
Journal Name: Agron. J.; (United States) Journal Volume: 50
Country of Publication:
United States
Language:
English