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Libros Libros 21 - 28 de 28 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 Canadian Entomologist - Página 138
1878
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Report, State Entomologist of Minnesota to the Governor, Volúmenes12-14

1908
...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 lirnbs will become disfigured and weakened by large porous tumors, caused by the efforts of the trees...
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Annual Report, Volumen2,Parte1

New York (State). Dept. of Agriculture - 1917
...the tree. The seat of their operations is known by the oozing of the sap and the dropping of sawdust from the holes. The bark around the part attacked begins to swell, and in a few years the trunks and the limbs become disfigured by large porous tumors. The grubs attain their full size by the twentieth...
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Annual Report of the New York State College of Agriculture at ..., Volumen1

New York State College of Agriculture - 1917
...the tree. The seat of their operations is known by the oozing of the sap and the dropping of sawdust from the holes. The bark around the part attacked begins to swell, and in a few years the trunks and the limbs become disfigured by large porous tumors. The grubs attain their full size by the twentieth...
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Annual Report - Entomological Society of Ontario

Entomological Society of Ontario - 1877
...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...will become disfigured and weakened by large porous tumours, caused by the efforts of the trees to repair the injuries they have suffered. . . . The grubs...
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Sessional Papers - Legislature of the Province of Ontario, Volumen1

Ontario. Legislative Assembly - 1874
...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...will become disfigured and weakened by large porous tumours caused by the efforts of the trees to repair the injuries they have suffered." The habits of...
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Annual Report - Entomological Society of Ontario: 1871-1876, Volúmenes2-8

Entomological Society of Ontario - 1872
...bark. The seat of their operations is known by the oozmg of the sap and the dropping of the sawdust from the holes. The bark around the part attacked...will become disfigured and weakened by large porous tumours, caused by the efforts of the trees to repair the injuries they have suffered." The history...
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Annual Report [with Accompanying Documents]., Volumen2,Parte1

New York (State). Department of Agriculture - 1917
...the tree. The seat of their operations is known by the oozing of the sap and the dropping of sawdust from the holes. The bark around the part attacked begins to swell, and in a few years the trunks and the limbs become disfigured by large porous tumors. The grubs attain their full size by the twentieth...
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Forest Leaves, Volúmenes3-5

1890
...entrance 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 trunk and limbs will become disfigured and weakened by large porous tumors, caused by the effort of...
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