A Treatise on Some of the Insects Injurious to VegetationWilliam White, Printer to the State, 1862 - 640 páginas |
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A Treatise on Some of the Insects Injurious to Vegetation Thaddeus William Harris Vista completa - 1862 |
A Treatise on Some of the Insects Injurious to Vegetation Thaddeus William Harris Vista completa - 1862 |
A Treatise on Some of the Insects Injurious to Vegetation Thaddeus William Harris Vista completa - 1862 |
Términos y frases comunes
abdomen Angoumois antennæ appear August band bark beetles belong beneath black spots blackish body borers broad brood brownish burrow butterfly called canker-worms caterpillars Cecidomyia chrysalis Cicada cocoons color covered cylindrical dark brown devour dots dusky edge entomologists expand Fabricius feet female flies fore wings fully grown genus grain grasshoppers ground grubs habits hairs hatched head Hemiptera Hessian fly hind margin hind wings hinder hindmost inch inch in length injury insects joints July June kinds larva larvæ latter lay their eggs leaves legs Lepidoptera limbs Linnæus live locust-tree locusts maggots males Massachusetts middle moth narrow nearly notched numbers ochre-yellow Orthoptera oval pair pale piercer plant-lice plants Plate punctures pupa ravages resemble ring short skin slender sometimes species spines stripe tapering tawny tenths thick thorax transformations transverse trees trunks upper side weevil whitish wing-covers yellow yellowish young
Pasajes populares
Página 217 - Printing-House, between the hours of ten in the morning and two in the afternoon, to preach eight Divinity Lecture Sermons, the year following, at St.
Página 151 - Sounds do not always give us pleasure according to their sweetness and melody, nor do harsh sounds always displease. We are more apt to be captivated or disgusted with the associations which they promote than with the notes themselves. Thus the shrilling of the field-cricket, though sharp and stridulous, yet marvellously delights some hearers, filling their minds with a train of summer ideas of everything that is rural, verdurous, and joyous.
Página 104 - ... often obliged to open new holes through the bark. The seat of their operations is known by the oozing of the sap and the dropping of the sawdust from the holes. The bark around the part attacked begins to swell, and in a few years the trunks and limbs will become disfigured and weakened by large porous tumors, caused by the efforts of the trees to repair the injuries they have suffered.
Página 537 - An old elm-tree in this vicinity used to be a favorite place of resort for the Tremex Columba, or pigeon Tremex ; and around it great numbers of the insects were often collected, during the months of July and August, and the early part of September. Six or more females might frequently be seen at once upon it, employed in boring into the trunk and laying their eggs, while swarms of the males hovered around them. For fifteen years or more, some large buttonwood-trees in Cambridge have been visited...
Página 367 - ... than the males, their bodies are very thick, and of an oblong oval shape, and, though seemingly wingless, upon close examination two little scales, or stinted winglets, can be discovered on each shoulder. These females lay their eggs upon the top of their cocoons, and cover them with a large quantity of frothy matter, which on drying becomes white and brittle. Different broods of these insects appear at various times in the course of the summer, but the greater number come to maturity and lay...
Página 71 - ... many of them from two to three feet in diameter, and a hundred and fifty feet high? Yet whoever passes along the high road from Georgetown to Charleston, in South Carolina, about twenty miles from the former place, can have striking and melancholy proofs of this fact. In some places, the whole woods, as far as you can see around you, are dead, stripped of the bark, their wintry-looking arms and bare trunks bleaching in the sun, and tumbling in ruins before every blast, presenting a frightful...
Página 207 - It is to be observed, that the spring before this sickness, there was a numerous company of flies, which were like for bigness unto wasps or bumblebees ; they came out of little holes in the ground, and did eat up the green things, and made such a constant yelling noise as made the woods ring of them, and ready to deafen the hearers...
Página 167 - And they had breastplates, as it were breastplates of iron ; and the sound of their wings was as the sound of chariots of many horses running to battle.
Página 333 - ... eight or nine inches wide, which should extend two inches below the level of the soil, and be secured with strings of matting above. Fresh mortar should then be placed around the root, so as to confine the paper and prevent access beneath it, and the remaining cavity may be filled with new or unexhausted loam.
Página 560 - Dr. Harris states that it has been found in Massachusetts, that ploughing in the stubble has no effect upon the insects, which remain alive and uninjured under the slight covering of earth, and easily make their way to the surface, when they have completed their transformation. A free use of manure and thorough tillage, by promoting a rapid and vigorous growth of the plant, may render it less liable to suffer from the attacks of the insect.