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Libros Libros 1 - 10 de 30 sobre ... the passage becomes clogged and the burrow more or less filled with the coarse...
" ... the passage becomes clogged and the burrow more or less filled with the coarse and fibrous fragments of wood, to get rid of which the grubs are often obliged to open new holes through the bark. The seat of their operations is known by the oozing of... "
The Trees of America: Native and Foreign, Pictorially and Botanically ... - Página 205
por Daniel Jay Browne - 1846 - 520 páginas
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A report on the insects of Massachusetts: injurious to vegetation, Volumen3

Thaddeus William Harris, Massachusetts. Zoological and Botanical Survey - 1841 - 459 páginas
...new holes through the bark. The seat of their operations is known by the oozing of the sap and the dropping of the saw-dust from the holes. The bark...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...
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The Farmer's Encyclopædia, and Dictionary of Rural Affairs ..., Volumen1

Cuthbert William Johnson - 1844 - 1165 páginas
...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...part attacked begins to swell, and in a few years the trunks and limbs will become disfigured and weakened by large porous tumours, caused by the efforts...
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The American Agriculturist, Volumen5

1846
...together, and at intervals of five or six mfnutes, till her whole stock is safely stored. The eggs arc soon hatched, and the grubs immediately burrow into...will become disfigured and weakened by large porous tumors, caused by the efforts of the trees to repair the injuries they have suffered." According to...
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The American Agriculturist, Volumen5

1846
...becomes clogged, and the burrow more or less filled with the coarse and fibrous fragments of wood, to jet rid of which, the grubs are often obliged to open...will become disfigured and weakened by large porous tumors, caused by the efforts of the trees to repair the injuries they have suffered." According to...
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A Treatise on Some of the Insects of New England: Which are Injurious to ...

Thaddeus William Harris - 1852 - 513 páginas
...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...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...
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Annual Report

American Institute of the City of New York - 1853
...their operations is known by the oozing of the sap and the dropping of the saw dust from the hoh s 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...
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A Treatise on Some of the Insects Injurious to Vegetation

Thaddeus William Harris - 1862 - 640 páginas
...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...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...
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The Farmer's and Planter's Encyclopaedia of Rural Affairs: Embracing All the ...

Cuthbert William Johnson - 1869 - 1179 páginas
...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...part attacked begins to swell, and in a few years the trunks and limbs will become disfigured and weakened by large porous tumours, caused by the efforts...
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The Canadian Entomologist, Volúmenes10-12

1878
...bark. The seat of their operations is known by the oozing of the sap and the dropping of the saw dust 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...
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The Canadian Entomologist, Volúmenes11-12

1879
...bark. The seat of their operations is known by the oozing of the sap and the dropping of the saw dust 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...
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