Successful farming : a ready reference on all phases of agriculture for farmers of the United States and Canada . Grape Leaf Hopper(Typhlocyba comes).1 Adult, winter enlarged. J^. Lesser Apple Worm {Enarmonia -prunivora).1 A—Adult, or moth. B—Same with wings folded. C—Larva. D—Pupa incocoon ready for transformation to adult. E—Young apple, showing at calyx-end empty pupa skin from which moth has emerged. Enlarged about threetimes. i Dept. Bull. 19. - Bur. Ent. Bull. 68. INSECT PESTS AND THEIR CONTROL 999 beneath the bark. The external indications of their presence are the massof s
Successful farming : a ready reference on all phases of agriculture for farmers of the United States and Canada . Grape Leaf Hopper(Typhlocyba comes).1 Adult, winter enlarged. J^. Lesser Apple Worm {Enarmonia -prunivora).1 A—Adult, or moth. B—Same with wings folded. C—Larva. D—Pupa incocoon ready for transformation to adult. E—Young apple, showing at calyx-end empty pupa skin from which moth has emerged. Enlarged about threetimes. i Dept. Bull. 19. - Bur. Ent. Bull. 68. INSECT PESTS AND THEIR CONTROL 999 beneath the bark. The external indications of their presence are the massof sap which is commonly seen at the base of the tree and the frass or worm-wood that has been worked out through holes in the bark. Preventivemeans that have given some measure of success are various styles of pro-tectors placed around the base of the trees, and coating washes applied tothe trunk. The latter are not satisfactory. Treatment.—Remove the ground from the crown of the tree in thespring and fall and dig out the borers with a sharp Agri. Exp. Sta. Bull. 73; N. J. Agri. Exp. Sta. Bull. 235. Pear Leaf Blister Mite (Eriophyes pyri, Pagenstecher).—This sm
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Keywords: ., bookcentury1900, bookdecade1910, booksubjectagriculture, bookyear
