. Economic entomology for the farmer and fruit-grower [microform] : and for use as a text-book in agricultural schools and colleges. Beneficial insects. STRUCTURE AND CLASSIFICATION. SI and one that can be easily accomplished in most cases by any one possessing a little patience. In leaf-feeding insects all that is necessary is to bring in a supply of food with the larva upon it, and keep it in a box or cage, renewing from time to time, so that fresh food may be always available. In the bottom of the • F^iG. A breeding-cage of the Riley pattern. box there should be three or four inches of
. Economic entomology for the farmer and fruit-grower [microform] : and for use as a text-book in agricultural schools and colleges. Beneficial insects. STRUCTURE AND CLASSIFICATION. SI and one that can be easily accomplished in most cases by any one possessing a little patience. In leaf-feeding insects all that is necessary is to bring in a supply of food with the larva upon it, and keep it in a box or cage, renewing from time to time, so that fresh food may be always available. In the bottom of the • F^iG. A breeding-cage of the Riley pattern. box there should be three or four inches of clean sand for the benefit of those forms that go underground to change to a pupa, and in due time the caterpillar or slug will, under the observer's very eyes, change to a butterfly, beetle, or other insect, accord- ing to the character of the 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 : J. B. Lippincott Co.
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Photo credit: © The Book Worm / Alamy / Afripics
License: Licensed
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Keywords: ., bookcentury1800, bookdecade1890, bookpublisherphila, bookyear1896
