. Economic entomology for the farmer and the fruit grower, and for use as a text-book in agricultural schools and colleges;. Insects; Pests. THE INSECT WORLD. 189 offers a large measure of protection, since the adults will not vol- untarily eat through a coat of it, and the larvae cannot do so Fig. 174-. Work of the sinuate pear-borer on a Bartlett pear-tree : about one-fourth natural size. when first they emerge from the ^<g'g. The whitewash can be. Please note that these images are extracted from scanned page images that may have been digitally enhanced for readability - coloration and ap
. Economic entomology for the farmer and the fruit grower, and for use as a text-book in agricultural schools and colleges;. Insects; Pests. THE INSECT WORLD. 189 offers a large measure of protection, since the adults will not vol- untarily eat through a coat of it, and the larvae cannot do so Fig. 174-. Work of the sinuate pear-borer on a Bartlett pear-tree : about one-fourth natural size. when first they emerge from the ^<g'g. The whitewash can be. 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 Smith, John Bernhard, 1858-1912. Philadelphia and London : J. B. Lippincott co.
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Keywords: ., bookcentury1900, bookdecade1900, booksubjectinsects, bookyear1906
