Report of the State Entomologist on Injurious and Other Insects of the State of New York, Volumes 17-18

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University of the State of New York, 1902 - Beneficial insects
 

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82

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Page 62 - ... attack the fruit. They eat " by gathering a quantity of the substance of the leaf in their mandibles or large jaws and jerking the head upwards, after which the body is moved a step forward and another mouthful of food is secured as before. After securing a few mouthfuls in this way they move to another place and begin again, thus eating out numerous chain-like areas of irregular length," as is well shown in figures ri and S.
Page 86 - LL.B. LL.D. Secretary of State, ex officio 1900 THOMAS A. HENDRICK MA LL.D. - Rochester 1901 BENJAMIN B. ODELL JR LL.D. Governor, ex officio 1901 ROBERT C. PRUYN MA _____ Albany 1902 WILLIAM NOTTINGHAM MA Ph.D.
Page 95 - ... common cocoon within the leaves at the tip of the branches. When numerous, they frequently pupate in masses under fences and clapboards, or on the trunks and larger branches of the trees. The webs of the brown tail moth should not be confounded with those of the tent caterpillar or the fall webworm. They may be distinguished from those of the tent caterpillar by being placed at the tips of the branches, while the tent caterpillar con structs its tent in a fork of the limbs. The latter insect...
Page 129 - ... continued last spring, and the results of earlier years have been largely confirmed. 20^ mechanical crude petroleum emulsion. This mixture was applied Ap. 7 to about 70 trees, representing a number of the more common varieties. The day was cloudy, and the trees were damp at 11 am, so that no spraying was undertaken till 1 pm, at which time the trees were dry, though it was not what would be characterized as a drying day. The buds of some varieties of pears had begun to open. This insecticide...
Page 91 - To Dr LO Howard, chief of the division of entomology of the United States Department of Agriculture, and his staff, special acknowledgments are due for the determination of a number of insects and for information supplied.
Page 93 - Incbes, are pure white with a satiny luster on the fore wings and have a conspicuous reddish brown tuft at the tip of the abdomen [pi. 1, fig. 5, C]. Sometimes there are a few black spots on the fore wings. The antennae are white and fringed with pale yellowish hairs. The females have a wing spread of about 1% inches, are the same color as the males, except that they have no black spots on the wings, and the anal tuft is larger and lighter in color, while the antennae are shorter and with shorter...
Page 84 - Maps. Merrill, F: JH Economic and Geologic Map of the State of New York. 59x67 cm. 1894. Scale 14 miles to i inch. Out of print. New edition in preparation. Printed also with Museum bulletin 15 »u<i the 48th museum report, v.
Page 94 - The young caterpillars of the brown tail moth, after hibernating in the tents which they construct at the tip of the branches, emerge in the spring and feed downward towards the main branches and trunk, leaving the naked twigs bearing the gray tents at the ends, a conspicuous evidence of the presence of this insect. They eat the entire leaf except the midrib, and, in leaves having strong ribs, like those of the sycamore maple, all the larger ribs are left untouched. When the caterpillars are numerous...
Page 90 - ... (Chironomidae), a group of much importance as food for fishes, and the Neuropterus family, Sialidae; the bulletin on the grapevine root worm, comprising a detailed account of this very injurious species, with special reference to its control, a publication of 3G pages ; a monograph of the genus Saperda, which includes some of our most destructive wood borers, has been prepared by the entomologist in association with Mr LH Joutel of New York, and will form a small bulletin of about 40 pages, illustrated...
Page 88 - The determination of scale insects for the commissioner of agriculture, in connection with the nursery inspection work of his department, makes considerable inroads on our time.

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