Purple spot and Stemphylium leaf spot of asparagus
California Agriculture 38(7):21-21.
Published July 01, 1984
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Not available – first paragraph follows: For several years, California asparagus growers have noticed purple spots that develop near the base of the spears before harvest. The condition is worse following cool, wet weather and was more severe during 1982 and 1983 than in previous years, resulting in higher rejection rates during cutting and packing.