Search Images Maps Play YouTube News Gmail Drive More »
Sign in
Books Books
" ... the approach of winter, during which they remain at rest in a torpid state. In the spring they bore through the sapwood, more or less deeply into the trunk, the general course of their winding and irregular passages, being in an upward direction from... "
The American Agriculturist - Page 345
1846
Full view - About this book

Report of the United States Entomological ..., Volume 5, Parts 1886-1890

United States Entomological Commission - 1890
...In the spring they bore through the sap-wood more or less deeply into the trunk, the general conrse of their winding and irregular passages being in an...of their holes as fast as they are made, but after a while the passage becomes clogged and the bnrrow more or less filled with the coarse aud fibrous...
Full view - About this book

Fifth Report of the United States Entomological Commission: Being a Revised ...

United States Entomological Commission, Alpheus Spring Packard - 1890 - 957 pages
...winter, during which they remaiu at rest in a torpid state. In the spring they bore through the sap-wood more or less deeply into the trunk, the general course of their winding and irregular passages beiug in an upward direction, from the place of their entrance. For a time they cast their chips out...
Full view - About this book

Agriculture of Pennsylvania, Volume 15

1891
...during which they remain at rest in a torpid condition. In the spring they bore through the sap wood more or less deeply into the trunk, the general course of their winding irregular passages being in an upward direc tiou from the place of their entrance. For a time they...
Full view - About this book

Annual Report of the Pennsylvania Department of Agriculture, Issue 2, Part 1

Pennsylvania. Dept. of Agriculture - 1897
...during which time they remain at rest in a torpid state. In the spring they bore through the sap-wood more or less deeply into the trunk, the general course of their windings and irregular passages being in an upward direction from the place of their entrance. The...
Full view - About this book

Report

Pennsylvania. Department of Forests and Waters - 1898
...winter, during which they remain at rest in a torpid state. In the spring they bore through the sap-wood more or less deeply into the trunk, the general course...entrance. For a time they cast their chips out of the holes as fast as they are made, but after a«while the passage becomes clogged and the burrow more...
Full view - About this book

Annual Report of the Pennsylvania Department of Agriculture, Issue 3, Part 2

Pennsylvania. Dept. of Agriculture - 1898
...entrance. For a time they cast their chips out of the holes as fast as they are made, but after a while the passage becomes clogged and the burrow more or...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...
Full view - About this book

Bulletin, Issues 99-114

1906
...winter, during which they remain at rest in a torpid state. In the spring they bore through the sapwood, more or less deeply into the trunk, the general course...of their holes as fast as they are made, but after a while the passage becomes clogged and the burrow more or less filled with the coarse and fibrous...
Full view - About this book

Report

Minnesota. State Entomologist - 1908
...winter, during which they remain at rest in a torpid state. In the spring they bore through the sapwood, more or less deeply into the trunk, the general course...of their holes as fast as they are made, but after a while the passage becomes clogged and the burrow more or less filled with the coarse and fibrous...
Full view - About this book

Report, State Entomologist of Minnesota to the Governor. v.12 ..., Volumes 12-14

1908
...winter, during which they remain at rest in a torpid state. In the spring they bore through the sapwood, more or less deeply into the trunk, the general course...of their holes as fast as they are made, but after a while the passage becomes clogged and the burrow more or less filled with the coarse and fibrous...
Full view - About this book

Annual Report - Entomological Society of Ontario

Entomological Society of Ontario - 1877
...winter, during which they remain at rest in a torpid state. In the spring they bore through the sap-wood, more or less deeply into the trunk, the general course of their entrance. For a time they cast their chips out of their holes as fast as they are made ; but after...
Full view - About this book




  1. My library
  2. Help
  3. Advanced Book Search
  4. Download EPUB
  5. Download PDF