. The American fruit culturist, containing directions for the propagation and culture of all fruits adapted to the United States. Fruit-culture. DESTRUCTIVE INSECTS. 171 green or other poisonous spray in the spring to control this serious pest; it is usually necessary to make two thorough ap- plications before the blossoms open. Canker-worms are among the most destructive of apple pests. They are measuring-worms from an inch to an inch and a half. Fig. 233.—Spring Canker-worm.—Larva; female; male. in length, and finally develop into small moths, the females of which (Fig. 233) have no wings. T
. The American fruit culturist, containing directions for the propagation and culture of all fruits adapted to the United States. Fruit-culture. DESTRUCTIVE INSECTS. 171 green or other poisonous spray in the spring to control this serious pest; it is usually necessary to make two thorough ap- plications before the blossoms open. Canker-worms are among the most destructive of apple pests. They are measuring-worms from an inch to an inch and a half. Fig. 233.—Spring Canker-worm.—Larva; female; male. in length, and finally develop into small moths, the females of which (Fig. 233) have no wings. There are several differ- ent kinds of canker-worms, and they often work together in the same orchard. They consume the foliage, except the larger leaf veins, and give the trees a scorched appearance from a distance, so that the insects are known as "fire-worms" in some localities. We have seen thousands of acres of apple. Please note that these images are extracted from scanned page images that may have been digitally enhanced for readability - coloration and appearance of these illustrations may not perfectly resemble the original Thomas, J. J. (John Jacob); Wood, William H. S. New York, Orange Judd
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