. Practical agriculture [microform]. Agriculture; Agriculture. insects is the grape-vine flea-l)eetle wliich lays its eggs on the underside of the leaves. Small brownish larva; are hatched, which eat the leaves, then drop to the ground and change to the pupa form, from which in about three weeks the perfect beetle emerges. The beetles may be collected by hand, and the vines dusted with powder or sprayed. We also give here one of the leai-roUers which are found on so many vines and Fig. 67.—Grape-vine leaf roller, a, male moth ; /', female; r, larva; (f, bead and thoracic segment of sam
. Practical agriculture [microform]. Agriculture; Agriculture. insects is the grape-vine flea-l)eetle wliich lays its eggs on the underside of the leaves. Small brownish larva; are hatched, which eat the leaves, then drop to the ground and change to the pupa form, from which in about three weeks the perfect beetle emerges. The beetles may be collected by hand, and the vines dusted with powder or sprayed. We also give here one of the leai-roUers which are found on so many vines and Fig. 67.—Grape-vine leaf roller, a, male moth ; /', female; r, larva; (f, bead and thoracic segment of same, enlarged ; e, pupa ; _/, tip of pupa, enlarged ; x', grape leaf folded by larva. This grape-vine leaf-roller eats the leaves. The adult is a dark-colored moth with two white spots on each of the two hind wings. The larva rolls up a leaf and stitches it together, as shown in figure 67. Poison by spraying with Paris green in water, applied in early spring. The principal diseases of the grape are mildew and black rot, which are prevented by spraying. Suggestive :— Grape leaves are suitable objects to draw in outline. Notice the woolly leaved Roger's varieties (the southern P'ox grape) and also the ihin smooth leaved kind like Clinton—the northern type. ^^hat is the best aspect for a grape-vineyard? 9. 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 James, C. C. (Charles Canniff), 1863-1916. New York : D. Appleton
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Keywords: ., bookauth, bookcentury1800, bookdecade1890, booksubjectagriculture
