. The encyclopedia of practical horticulture; a reference system of commercial horticulture, covering the practical and scientific phases of horticulture, with special reference to fruits and vegetables;. Gardening; Fruit-culture; Vegetable gardening. Fis. 5. Pupa Cases of Cherry and Pear Slug. When disturbed these cells are very easily broken apart, a fact which might indicate that fall plowing can be used as a method of destroying the pupae, accord- ing to Marlatt. "During the heated season of July and August the transformation from the lar- val to the adult insect is quite rapid, the p
. The encyclopedia of practical horticulture; a reference system of commercial horticulture, covering the practical and scientific phases of horticulture, with special reference to fruits and vegetables;. Gardening; Fruit-culture; Vegetable gardening. Fis. 5. Pupa Cases of Cherry and Pear Slug. When disturbed these cells are very easily broken apart, a fact which might indicate that fall plowing can be used as a method of destroying the pupae, accord- ing to Marlatt. "During the heated season of July and August the transformation from the lar- val to the adult insect is quite rapid, the pupal stage being assumed in from six to eight days, and the adult flies transform- ing and digging out through the soil some 12 or 15 days after the larva entered ;* According to the studies of Peck and Marlatt some of the larvae of this spring brood remain over in the soil until the following spring. This seems to be a pro- vision of nature to carry the species over, should anything happen to exterminate the regular line of succession, such as. 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 Lowther, Granville, ed; Worthington, William, 1871-. North Yakima, Wash. , The Encyclopedia of Horticulture Corporation
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Photo credit: © Central Historic Books / Alamy / Afripics
License: Licensed
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Keywords: ., bookcentury1900, booksubjectfruitculture, booksubjectgardening
