. California greenhouse pests and their control. Insect pests; Greenhouse plants. Fig. 38. The cactus scale: subcircular females and smaller, elongate 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 Pritchard, A. Earl (Arthur Earl), 1915-1965. Berkeley, Calif. : California Agricultural Experiment Station, College of Agriculture, University of California

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Keywords: ., bookcentury1900, booksubjectgreenhousepl, booksubjectinsectpests