. Injurious insects : how to recognize and control them . Insect pests; Insect pests. 274 FESTS OF ORCHARD AXJj SMALL FRUITS Since the larvae are conspicuous and are not numerous, hand picking is feasible. Arsenical poisons, such as Paris green or arsenate of lead, may be used if Fig. 3S3. — Larva of the Abbott's Sphins. Original. The Plum-tree Sphinx [Sphinx drupiferarum S. and A.) Large, green caterpillars are sometimes in e-^-idence on the foliage of plum trees, de'vouring the leaves. They are naked worms, two inches or more in length, the body marked on each side with seven diago
. Injurious insects : how to recognize and control them . Insect pests; Insect pests. 274 FESTS OF ORCHARD AXJj SMALL FRUITS Since the larvae are conspicuous and are not numerous, hand picking is feasible. Arsenical poisons, such as Paris green or arsenate of lead, may be used if Fig. 3S3. — Larva of the Abbott's Sphins. Original. The Plum-tree Sphinx [Sphinx drupiferarum S. and A.) Large, green caterpillars are sometimes in e-^-idence on the foliage of plum trees, de'vouring the leaves. They are naked worms, two inches or more in length, the body marked on each side with seven diagonal dashes of narrow white bordered with purple. On the hind end is a conspicuous spine. The adults are strong-fiT,-ing motlis, seen hovering over flowers in the eve- ning. The pupal stage is passed in the soil. There is one generation annually. Hand picking is the usual remedy, Ijut arsenate of lead or Paris green may be used on the fohage if desired. The False Army-worm iCalocampa nubera Lint.) In recent seasons, cranberry fohage has been severely injured by a large caterpillar, two inches long when fuU grown,, dark green in color,. 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 O'Kane, Walter Collins, b. 1877. New York : The Macmillan Company
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Keywords: ., bookcentury1900, bookdecade1910, booksubjectinsectp, bookyear1912
