. Destructive insects. Insect pests. VII. SPRAYING APPARATUS. PUMPS. JI^The spread of injurious insect pests in the past few years has caused the invention and improvement of a great many spraying apparatus. The following are the most approved pumps used in the State:. Fig. 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 California. State board of horticulture. Division of entomology. [from old catalog]; Craw, Alexande
. Destructive insects. Insect pests. VII. SPRAYING APPARATUS. PUMPS. JI^The spread of injurious insect pests in the past few years has caused the invention and improvement of a great many spraying apparatus. The following are the most approved pumps used in the State:. Fig. 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 California. State board of horticulture. Division of entomology. [from old catalog]; Craw, Alexander. [from old catalog]. Sacramento, A. J. Johnston, supt. state printing
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Keywords: ., bookcentury1800, bookdecade1890, booksubjectinsectpests, bookyear
