. Practical agriculture [microform]. Agriculture; Agriculture. 11^ AGRICULTURE. "III ! i ill. pigs. The trees are sprayed with Paris green while the tiny apples are still turned upwards. If we spray the trees earlier for other insects we must be careful not to spray while in full bloom, since then we may poison the bees that are gathering honey and helping to fertilize the blossoms by carrying pollen from one blossom to another. Further, we may injure the blossoms and at that time the codling moth has not yet laid her eggs. The Pear Tree Slug.—The perfect insect is a very black saw-fly, w
. Practical agriculture [microform]. Agriculture; Agriculture. 11^ AGRICULTURE. "III ! i ill. pigs. The trees are sprayed with Paris green while the tiny apples are still turned upwards. If we spray the trees earlier for other insects we must be careful not to spray while in full bloom, since then we may poison the bees that are gathering honey and helping to fertilize the blossoms by carrying pollen from one blossom to another. Further, we may injure the blossoms and at that time the codling moth has not yet laid her eggs. The Pear Tree Slug.—The perfect insect is a very black saw-fly, with four wings of the form shovA'n in fig. 36. The female is about one-fifth of an inch long, the male a little shorter. Points to be noted are the nature of the wings and the color of the legs. Little cuts are made Fig. 60.—The pear tree slug. in the leaf in wllich the eggs are laid about June. From these the slugs are hatched, which are from one-half to two-thirds of an inch long, slimy, dark green in color. At once they begin to eat the leaves. The slugs change their skins four or five times, and in about a month they crawl or fall to the ground and change to the pupa state. After two weeks more these change to flies, which are ready to lay eggs to hatch a second brood early in August. After doing damage a second time the larvae enter the ground for the winter. In the spring the flies appear, again ready for destruction. I'he slugs are to be looked for on pear and on cherry trees in June and again in August, The Plum Curculio.—The perfect insect is known as a weevil or snout beetle. It is dark in color, and about one- fifth of an inch in length. During winter it remains hidden under rubbish. It comes out in the spring and does great damage as the young fruit is setting. It punches a little hole in the fruit with its snout, lays an egg, and then makes ' Please note that these images are extracted from scanned page images that may have been digitally enhanced for rea
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