. Les insectes nuisibles pour les fruits. Illustré de quatre cent quarante coupes de bois. Les insectes nuisibles. 410 LES INSECTES NUISIBLES À L'ORANGE. hatclied les larves sont très actifs, et même l'insecte adulte peut explorer d'un point à un autre avec une apparente facilité, transportant l'échelle avec elle. Cette échelle a été trouvé sur l'orange-arbres près de Santa Bar- bara, et sans doute existe dans d'autres localités aussi. En vert- maisons il attaque non seulement l'orange, mais beaucoup d'autres plantes. Fig. 425. No 262.-Les-Monts Mealy bug. Dactylopius adonidum Linn. Les insectes connus sous le nom de formulaire de Mealy-bugs, pas d'échelle et ne sont pas

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. Insects injurious to fruits. Illustrated with four hundred and forty wood-cuts. Insect pests. 410 INSECTS INJURIOUS TO THE ORANGE. hatclied larvae are very active, and even the adult insect can crawl from one point to another with apparent ease, carrying the scale with it. This scale has been found on orange-trees near Santa Bar- bara, and doubtless exists in other localities also. In green- houses it attacks not only the orange but many other plants. Fig. 425. No. 262.—The Common Mealy-bug. Dactylopius adonidum Linn. The insects known under the name of mealy-bugs form no scale, and are not always stationary, having the power of moving from one place to another; but, since they require the same treatment as scale-insects, it will be convenient to treat of them here. This species of mealy-bug is common in green-houses throughout the civilized world. The female is represented magnified in Fig. 425, with most of the mealy matter re- moved. AVhen fuirgrown, it is about one-eighth of an inch long, white, with a tinge of yellow, a brown band upon the middle of the back, and it? whole body powdered with w^hite, floury- looking material. The sides and ex- tremities of the body are armed with spines. The larva, which varies in size according to its age, is of the same form, but flatter. The male is a small winged insect, much resembling that of No. 263. In Florida it attacks the orange, guava, grape-vine, and pineapple, and prevails to such an extent that it is said few orange-trees have escaped its ravages except those in the interior and southern parts of the State.. 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 work.. Saunders, William, 1836-1914. Philadelphia, J. B. Lippincott & Co

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