. Agriculture, its fundamental principles. Agriculture. 212 AGRICULTURE. A ToKACco Cut- worm If unchecked, they often destroy from one fourth to three fourths of the apple crop. It costs milHons of dollars every year to spray fruit trees in order to protect them against this pest. There is a fiy, described later, which helps the farmer by de- stroying the larvae of the codling moth. Cutworms. —Cutworms are the enemies of almost all garden plants and of many field crops. The name is applied to the larvae of different moths, which are so similar in appearance and habits that they may be describe
. Agriculture, its fundamental principles. Agriculture. 212 AGRICULTURE. A ToKACco Cut- worm If unchecked, they often destroy from one fourth to three fourths of the apple crop. It costs milHons of dollars every year to spray fruit trees in order to protect them against this pest. There is a fiy, described later, which helps the farmer by de- stroying the larvae of the codling moth. Cutworms. —Cutworms are the enemies of almost all garden plants and of many field crops. The name is applied to the larvae of different moths, which are so similar in appearance and habits that they may be described together. The adult moths have dark fore wings and lighter hind wings. They lay their eggs about midsummer. The larvae soon hatch and begin to feed, but on the abundant summer foliage their ravage is hardly noticed. In the fall they hollow out cells in the earth, where they sleep through the winter. In the spring they come out and feed greedily on the tender young plants. They cut these off at the surface and eat the stem and leaves. Like the parent moths, they usually feed only at night; but when food is scarce they feed in the day. When full-grown, cutworms are dull brown, gray, or greenish in color. They enter the earth and remain there in the pupa state till summer, and then come out as moths. The best way to destroy cut- worms is by thorough cultiva-. tion and by poison. Weeds and grass in fields about to be cultivated may be sprayed with Paris green, or the poison can be applied to bunches of clover or grass scattered where cutworms are 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 Soule, Andrew MacNairn. [from old catalog]; Turpin, Edna Henry Lee, 1867-1952, joint author. Richmond, Atlanta [etc. ] B. F. Johnson publishing company
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