Entomology for beginners; for the use of young folks, fruitgrowers, farmers, and gardeners; . FIG. 254.—Hop-worm, pupa, and moth; all natural size. again in July and August, hop-leaves are devoured byactive, slender, grass-green caterpillars, with but four pairsof abdominal legs. REMEDIES.—Hand-picking and vigorously shaking the vines twicea day, as well as spraying the vines with whale-oil soap, are advisable. Injuring the Phylloxera (Phylloxera vastatrix Planchon).—By. FIG 255 —The Phylloxera, wingless leaf-form, a, under, 6, upper, side of newly-hatched larva- c egg; d, secti
Entomology for beginners; for the use of young folks, fruitgrowers, farmers, and gardeners; . FIG. 254.—Hop-worm, pupa, and moth; all natural size. again in July and August, hop-leaves are devoured byactive, slender, grass-green caterpillars, with but four pairsof abdominal legs. REMEDIES.—Hand-picking and vigorously shaking the vines twicea day, as well as spraying the vines with whale-oil soap, are advisable. Injuring the Phylloxera (Phylloxera vastatrix Planchon).—By. FIG 255 —The Phylloxera, wingless leaf-form, a, under, 6, upper, side of newly-hatched larva- c egg; d, section of the leaf-gall containing the insects; e,swelling of tendril; /, side, gr, upper, /i, under, view of the mother gall-louse;f, antenna; j, two-jointed tarsus.—After Riley. far the most destructive insect of the vine is this exists in two forms, one raising irregular galls on the 210 ENTOMOLOGY. leaves and the other forming small swellings on the root-lets. The root-form is both wingless and winged, the latter
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Keywords: ., bookcentury1800, bookdecade1880, bookpublishe, booksubjectinsects
