Spider mites on walnuts: False spider mite, European red mite, and Pacific spider mite infestations in northern California walnuts during 1955
California Agriculture 10(7):4-14.
Published July 01, 1956
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The false spicier mite—Brevipalpus lewisi McGregor—first became a potential pest of walnut in the 1955 season although it has been known in California since 1944.