The practical fruit grower . Fig. 64. and after fruiting is cut back to E, leaving two canes, C and D, forthe continuation of the treatment. The cane B is to be cut backto one or two buds at the fall or winter pruning. Insects.—The Grape is a fruit generally one of the least sub-ject to injury from insects. Some seasons the Rose Bug, whichis too common to need description, plays havoc with the blossoms,just as the fruit is setting, and in a few sections has done someinjury to the foliage. It is an insect that notning seems to des-troy, but it may be paralyzed by the use of the pyrethrumpowder,
The practical fruit grower . Fig. 64. and after fruiting is cut back to E, leaving two canes, C and D, forthe continuation of the treatment. The cane B is to be cut backto one or two buds at the fall or winter pruning. Insects.—The Grape is a fruit generally one of the least sub-ject to injury from insects. Some seasons the Rose Bug, whichis too common to need description, plays havoc with the blossoms,just as the fruit is setting, and in a few sections has done someinjury to the foliage. It is an insect that notning seems to des-troy, but it may be paralyzed by the use of the pyrethrumpowder, applied just at night, when the bugs may be caught upon THE PHYLLOXERA. 81 the curculio screen. Hand-picking, which has been resorted toby some growers, is too expensive except upon very choice vari-. Fig. 65. eties. It is claimed by the Buhach company that their prepar-ation of pyrethrum will kill this pest. Should this prove to bethe case, the screen will not be needed. Phylloxera or Grape Vine Louse {Phylloxera vastatrix).—This isthe insect that is so destructive to vines of European vineyards,and has destroyed thousands and thousands of acres of vinesthere. It is a native of this country and by some means wastransported across the Atlantic and has propagated and developedwith great rapidity upon the more tender European Grapes. Itis generally found in two forms, the leaf and root form. Theformer is very small, not over one thirty-second of an inch inlength, of a light yellow color, and sucks the juices of the leavesand tender branches, causing small warts or galls upon leaf forms of the Phylloxera is shown at Fig. 65: a. frontview of the young louse; b, back view of the louse; c, the egg;d, a section of one of the galls; e, a swollen tendril; f,g,h,mature egg-bearing
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Keywords: ., bookcentury1800, bookdecade1880, bookidp, booksubjectfruitculture
