. Bulletin - Massachusetts Agricultural Experiment Station. Agriculture -- Massachusetts. Saddleback Caterpillar on Leaf. Courtesy, Robert L. Coffin. Larva of Hag Moth. Greatly enlarged. Control. Whenever these caterpillars become annoying they may be con- trolled by spraying the foliage with lead arsenate at the rate of 4 pounds to 100 gallons of water, with 2 pounds of flour or 1 pound of calcium caseinate added to increase adhesiveness. Britton, W. E. Conn. State Ent. Rpt. 30:462. 1930. Comstock, J. H. Introduction to Entomology, pp. 608-610. 1933. Felt, E. P. N. Y. State Mus. Mem. 8(2) :52

. Bulletin - Massachusetts Agricultural Experiment Station. Agriculture -- Massachusetts. Saddleback Caterpillar on Leaf. Courtesy, Robert L. Coffin. Larva of Hag Moth. Greatly enlarged. Control. Whenever these caterpillars become annoying they may be con- trolled by spraying the foliage with lead arsenate at the rate of 4 pounds to 100 gallons of water, with 2 pounds of flour or 1 pound of calcium caseinate added to increase adhesiveness. Britton, W. E. Conn. State Ent. Rpt. 30:462. 1930. Comstock, J. H. Introduction to Entomology, pp. 608-610. 1933. Felt, E. P. N. Y. State Mus. Mem. 8(2) :52 Stock Photo
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. Bulletin - Massachusetts Agricultural Experiment Station. Agriculture -- Massachusetts. Saddleback Caterpillar on Leaf. Courtesy, Robert L. Coffin. Larva of Hag Moth. Greatly enlarged. Control. Whenever these caterpillars become annoying they may be con- trolled by spraying the foliage with lead arsenate at the rate of 4 pounds to 100 gallons of water, with 2 pounds of flour or 1 pound of calcium caseinate added to increase adhesiveness. Britton, W. E. Conn. State Ent. Rpt. 30:462. 1930. Comstock, J. H. Introduction to Entomology, pp. 608-610. 1933. Felt, E. P. N. Y. State Mus. Mem. 8(2) :527-529. 1906. Harris, T. W. Insects Injurious to Vegetation, pp. 419-422. 1862. Packard, A. S. Fifth Rpt. U. S. Ent. Comm. pp. 143-148. 1890. Red-Humped Caterpillar Schiziira concinna S. & A. This insect is distributed over practically the entire United States and parts of Canada. It is commonly considered to be an orchard pest but it also attacks the foliage of a number of forest and shade trees including birch, willow, aspen, butternut, walnut, and others. The caterpillars, which appear in midsummer, feed in colonies, especially when young, and may defoliate a single branch or an entire tree. Description. The moth is colored an inconspicuous grayish-brown. The female has a wingspread of about IJ^ inches; the male slightly less. The eggs are white, almost round, and occur in masses of about 100 on the under side of leaves. The full-grown caterpillar is about 1 inch or slightly over in length, is striped with narrow black and yellow lines running lengthwise along the bod}', and has a double row of black spines along the back. The body tapers slightly toward the rear end. The head and a conspicuous hump on the fourth body segment are a bright red.. 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 work.. Massachuse

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