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1
The pine bark aphid /
by Knull, Josef Nissley, 1891-1975
Harrisburg, Pa. : Pennsylvania Dept. of Forests and Waters, 1933

This item is not available through EZBorrow. Please contact your institution’s interlibrary loan office for further assistance.
Government Document Book Chapter
2
The control of insect pests of shade and ornamental trees /
by Knull, Josef Nissley, 1891-1975
Harrisburg, Pa. : Pennsylvania Dept. of Forests and Waters, 1933

This item is not available through EZBorrow. Please contact your institution’s interlibrary loan office for further assistance.
Government Document Book Chapter
3
Leaf eating insects /
by Knull, Josef Nissley, 1891-1975
Harrisburg, Pa. : Pennsylvania Dept. of Forests and Waters, 1933

This item is not available through EZBorrow. Please contact your institution’s interlibrary loan office for further assistance.
Government Document Book Chapter
4
Ants and trees /
by Knull, Josef Nissley, 1891-1975
Harrisburg, Pa. : Pennsylvania Dept. of Forests and Waters, 1933

This item is not available through EZBorrow. Please contact your institution’s interlibrary loan office for further assistance.
Government Document Book Chapter
5
The white pine weevil /
by Knull, Josef Nissley, 1891-1975
Harrisburg, Pa. : Pennsylvania Dept. of Forests and Waters, 1933

This item is not available through EZBorrow. Please contact your institution’s interlibrary loan office for further assistance.
Government Document Book Chapter
6
Spruce gall forming aphids /
by Knull, Josef Nissley, 1891-1975
Harrisburg, Pa. : Pennsylvania Dept. of Forests and Waters, 1933

This item is not available through EZBorrow. Please contact your institution’s interlibrary loan office for further assistance.
Government Document Book Chapter
7
The beautiful hickory borer /
by Knull, Josef Nissley, 1891-1975
Harrisburg, Pa. : Pennsylvania Dept. of Forests and Waters, 1933

This item is not available through EZBorrow. Please contact your institution’s interlibrary loan office for further assistance.
Government Document Book Chapter
8
The poplar borer /
by Knull, Josef Nissley, 1891-1975
Harrisburg, Pa. : Pennsylvania Dept. of Forests and Waters, 1933

This item is not available through EZBorrow. Please contact your institution’s interlibrary loan office for further assistance.
Government Document Book Chapter
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