Insects and insecticidesA practical manual concerning noxious insects and the methods of preventing their injuries . moth, expanding nearlyan inch, and having several conspicuous white spotson its wings. The larva usually pupates within thefolded leaf. There are two broods each season, the-first brood of larvae pupating about midsummer, toemerge as moths shortly afterwards, and the secondpupating in autumn and hibernating as chrysalids. INJURING THE LEAVES. 125 Remedies.—This insect is seldom sufficiently nu-merous to require remedial treatment. The larvsemay be crushed within their cases, or
Insects and insecticidesA practical manual concerning noxious insects and the methods of preventing their injuries . moth, expanding nearlyan inch, and having several conspicuous white spotson its wings. The larva usually pupates within thefolded leaf. There are two broods each season, the-first brood of larvae pupating about midsummer, toemerge as moths shortly afterwards, and the secondpupating in autumn and hibernating as chrysalids. INJURING THE LEAVES. 125 Remedies.—This insect is seldom sufficiently nu-merous to require remedial treatment. The larvsemay be crushed within their cases, or the cases pickedoff and burned late in autumn, before the leaves falloff, if they threaten to become seriously destructive. The Beautiful Wood-nymph. Eudryas is a very handsome insect, both in its imma-ture and adult stages. The moth (Fig. 60, g) meas-ures nearly two in- ches across its ex-panded front wings,which are of a glos-sy creamy - whitecolor, beautifullymarked with pur-ple, brown a n dgreen. It lays itseggs (e,f) on theunder side of theleaves. The larvaesoon hatch and feedupon the Fig. 60. Beautiful Wood-nymph: a, larva;«, /, egg, magnified; g, moth. developing rapidly, so that by the latter part of sum-mer they are full grown (a), the body being of a palebluish color, crossed by bands and lines of orangeand black. The larvse now leave the vine and seeksome concealed situation in which to pupate. Theypass the winter in the chrysalis state, and emergethe following spring as moths. 126 INSECTS AFFECTING THE GRAPE. Remedies.—This insect is rarely injurious, prob-ably because it is kept in check by certain can be destroyed, if it should become too numer-ous, by hand picking, or by spraying or dustingthe infested vines with pyrethrum or hellebore. INJURING THE FRUIT. The Grape-berry Moth. Eudemis are frequently injured by having theirsubstance eaten out by a small, whitish worm thatfastens three or four berries together
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