Scientific American Supplement, No. 803, May 23, 1891 by Various
page 27 of 143 (18%)
page 27 of 143 (18%)
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The under surface of the wings is lighter than the upper, and the body is dark brown, with its posterior portion banded with lines of a paler hue. This pest may be destroyed by hand picking, or by jarring the trees or vines on which they are feeding, when they will fall to the ground and may be crushed or burned. THE GRAPE BERRY MOTH. _Eudemis botrana_ (S.V.) The moths emerge and fly early in June, and are quite small, measuring, when the wings are expanded, only two-fifths of an inch, Fig. 23, a, enlarged. The fore wings are purplish or slate brown from the base to the middle, the outer half being irregularly marked with dark and light brown. [Illustration: FIG. 23.] These insects are two-brooded and the first brood feeds not only on the leaves of the grape, but on tulip, sassafras, vernonia and raspberry. The caterpillars of the second brood emerge when the grapes are nearly grown, and bore in them a winding channel to the pulp, continuing to eat the interior of the berry till the pulp is all consumed, Fig. 23, d, when, if not full grown, they draw one or two other berries close to the first and eat the inside of those. |
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