. Destructive insects. Insect pests. — 23 — The male moth (Fig. 29, a) is a brownish gray color and very glossy. The fore wings are crossed by two irregular white bands; the outer one is quite prominent near the apex, where a large pale spot is found. The hind wings have a distinct whitish band crossing them, as shown in the illustration. The young larva? are of a pale olive green, changing to a darker green color, and cluster upon and eat the tender leaves. When full grown they measure about one inch in length. Remedies.—The principal object should be to prevent the females climbing the tree
. Destructive insects. Insect pests. — 23 — The male moth (Fig. 29, a) is a brownish gray color and very glossy. The fore wings are crossed by two irregular white bands; the outer one is quite prominent near the apex, where a large pale spot is found. The hind wings have a distinct whitish band crossing them, as shown in the illustration. The young larva? are of a pale olive green, changing to a darker green color, and cluster upon and eat the tender leaves. When full grown they measure about one inch in length. Remedies.—The principal object should be to prevent the females climbing the tree in the fall. If this is properly attended to, and that portion of the trunk under the band scrubbed in the spring to destroy any eggs that have been deposited thereon, there will be no trouble from canker worms. In infected orchards where this precaution has not been taken, the trees should be thoroughly sprayed in the winter with one of the washes recommended for deciduous trees. Should any hatch in the spring the trees must be immediately sprayed with one pound of Paris green to two hundred gallons of water. This must be constantly stirred when applying, otherwise the Paris green will settle on the bottom of the tank. Forest Tent Caterpillar. Clisiocampa sylvatica, Harris. Fig. 30, Fig. 30, 6. Although this pest is known as the forest tent caterpillar, it also attacks fruit trees. A number of apple and prune orchards suffered from the ravages of this destructive caterpillar this past spring. The female moth (Fig. 30, b) deposits her eggs in circles upon the twigs or small branches; with each one is secreted a small quantity of gummy matter, which, upon drying, forms a coating and seals them to the branch and to each other. They remain in this condition all winter, and about the time the buds open in the spring the young larvae Please note that these images are extracted from scanned page images that may have been digitally enhanced for readability - colorati
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Keywords: ., bookcentury1800, bookdecade1890, booksubjectinsectpests, bookyear
