. Commercial mass culture of the California red scale parasite : Aphytis lignanensis. Citrus; Scale insects. . Please note that these images are extracted from scanned page images that may have been digitally enhanced for readability - coloration and appearance of these illustrations may not perfectly resemble the original DeBach, Paul; White, Ernest B. Berkeley, Calif. : Division of Agricultural Sciences, University of California, California Agricultural Experiment Station

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Keywords: ., book, bookcentury1900, booksubjectcitrus, booksubjectscaleinsects