F. L. MULFORD, Horticulturist

Office of Horticultural and
Pomological Investigations

CONTENTS

Page
Importance of Shade Trees[1]
Public Control of Street Trees[6]
Planning for Trees on City Streets[8]
Spacing Trees[9]
Conditions for Tree Growth[10]
Kinds of Trees Suitable for City Streets[14]
Qualities Necessary[14]
Trees for Different Regions[20]
Descriptions of Street Trees[20]
Culture of Street Trees[43]
Selection of Individual Trees[43]
Preparation of Holes[44]
Planting[45]
Pruning[50]
Stakes and Guards[51]
Later Care[52]
Care of Mature Trees[53]
Pruning[53]
Feeding[55]
Spraying[55]

WASHINGTON
GOVERNMENT PRINTING OFFICE
1920

BUREAU OF PLANT INDUSTRY.

William A. Taylor, Chief.
K. F. Kellerman, Associate Chief.
James E. Jones, Assistant to Chief.
J. E. Rockwell, Officer in Charge of Publications.

Office of Horticultural and Pomological Investigations.
SCIENTIFIC STAFF.
L. C. Corbett, Horticulturist in Charge.

Truck Crop Production Investigations:

J. H. Beattie.
F. E. Miller.
C. J. Hunn.
B. J. McGervey.

Irish Potato Production Investigations:

William Stuart.
C. F. Clark.
W. C. Edmundson.
P. M. Lombard.
J. W. Wellington.
L. L. Corbett.

Truck Crop Improvement Investigations:

W. W. Tracy.
D. N. Shoemaker.

Landscape Gardening and
Floriculture Investigations:

F. L. Mulford.
W. Van Fleet.

Bulb Culture Investigations:

David Griffiths.

Fruit and Vegetable Utilization Investigations:

J. S. Caldwell.
C. A. Magoon.
C. W. Culpepper.

Fruit Production Investigations:

H. P. Gould.
L. B. Scott.
C. F. Kinman.
George M. Darrow.
E. D. Vosbury.

Grape Production Investigations:

George C. Husmann.
Charles Dearing.
F. L. Husmann.
Elmer Snyder.
G. L. Yerkes.

Fruit Breeding and Systematic
Investigations in Pomology:

W. F. Wight.
Magdalene R. Newman.

Fruit Improvement through Bud Selection:

A. D. Shamel.

Nut Investigations:

C. A. Reed.
E. R. Lake.

Fruit and Vegetable Storage Physiology:

L. A. Hawkins.
R. C. Wright.
J. R. Magness.
J. F. Fernald.

Extension Work (in cooperation with States Relations Service):
W. R. Beattie.
C. P. Close.

UNITED STATES DEPARTMENT OF AGRICULTURE

BULLETIN No. 816
Contribution from the Bureau of Plant Industry
WM. A. TAYLOR, Chief
Washington, D. C. ▼ January 19, 1920