Insects injurious to fruits . a slight attack wouldnot produce any perceptible injury. ATTACKING THE BEANOHES. No. 126.—The Grape-vine Bark-louse. Pulvinaria innumerahilis Rathvon. During the month of June there are sometimes found onthe branches of the grape-vine, brown, hemispherical scales,from under one end of which there protrudesa cotton-like substance, which increases in ^^^- ^48. size until the beginning of July, by whichtime it has become a mass about four timesas large as the scale. (See Fig. 248.) Thiscottony matter contains the eggs of the in-sect, and very soon there issue from it
Insects injurious to fruits . a slight attack wouldnot produce any perceptible injury. ATTACKING THE BEANOHES. No. 126.—The Grape-vine Bark-louse. Pulvinaria innumerahilis Rathvon. During the month of June there are sometimes found onthe branches of the grape-vine, brown, hemispherical scales,from under one end of which there protrudesa cotton-like substance, which increases in ^^^- ^48. size until the beginning of July, by whichtime it has become a mass about four timesas large as the scale. (See Fig. 248.) Thiscottony matter contains the eggs of the in-sect, and very soon there issue from it minute,oval, yellowish-white lice, which distributethemselves over the branches, to whichthey attach themselves, and shortly becomestationary, sucking the juices. This speciesis believed to be the same as the Europeanscale-insect of the vine. These scales arenot usually found in any great abundance,and may be readily scraped oiF with a knifeor other suitable instrument, which shouldbe done before the young lice escape. 16.
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