The Tree The Memorial That Lives 



parts water. Do not use on muggy days or in wet 

 weather. 



There are' on the market a number of good com- 

 mercial mixtures. These should be used on shade trees 

 according to directions which come on the containers. 

 Lime-sulphuric wash is to be used only when trees are 

 in dormant condition. In other words, do not spray 

 when the foliage is developed on the trees. 



HOW TO PLANT ROADSIDE TREES IN THE PUBLIC HIGHWAY 

 WHERE IT IS NECESSARY TO HAVE TELEGRAPH OR TELE- 

 PHONE POLES 



Three points in spraying are: (i) Be sure the spray 

 material is properly made. (2) Apply thoroughly. (3) 

 Apply at proper time. . 



The most common diseases of shade trees are known 

 as fungi. They live upon the tissue of other plants, living 

 or dead. Some of the fungi are microscopic in size, 

 while others are larger, thread-like structures, with large 

 fruiting bodies commonly known as mushrooms or 

 toadstools. 



The majority of fungus diseases are of little impor- 

 tance to shade tree growers. A few of the diseases are 

 highly destructive. In the east the most destructive tree 

 disease that can be mentioned is the chestnut blight. The 

 white pine blister rust is another well known, though even 

 more recent, forest tree disease. 



The lime sulphur wash may be used as a fungicide in 

 addition to its value for combating scales. The control of 

 fungus diseases should be by preventative measures. This 

 is given by covering all freshly made wounds on trees 

 with a heavy lead paint and otherwise keeping the trees 

 in healthy condition. 



Telephone and electric light wires do some harm by 

 being in contact with the branches of trees. This harm 

 can be reduced by proper insulating of the wires. Where 

 large quantities of wires are present they should be 

 placed underground. Without question the greater 

 damage to trees from overhead wires is an indirect one. 

 This is caused by the wholesale cutting of the tops of 

 trees to prevent them from touching the wires. 



Illuminating gas has caused the death of many street 

 trees on account of its poisoning of the soil. The only 

 remedy is to replant. It may be necessary to remove the 

 gas impregnated soil and replace with a fresh supply. 



During the past fifteen years much attention has been 

 given to the repair of injured trees through the methods 

 of tree surgery. The principal operations that are per- 

 formed in this repair work are antiseptical filling 

 of decayed cavities, the bracing of weakened parts of 

 trees and the correcting of natural deformities. In every 

 region there are persons skilled in this practice who may 

 be secured for the improvement of trees in this respect. 



Selected List of Trees. 



For New England States, New York, Pennsylvania, 

 New Jersey, Ohio, West Virginia, Kentucky, Indiana, 

 Michigan, Illinois, Missouri and Iowa : 



Deciduous Trees. 



Sugar maple White ash Pin oak 



Norway maple American white elm American linden 



Scarlet maple Red oak Scarlet oak 



Green ash White oak 



Evergreen Trees. 



White spruce White pine Hemlock 



Colorado blue Scotch pine Arbor vitae 



spruce Balsam pine 



For Delaware, Maryland, District of Columbia, Vir- 

 ginia, North Carolina, South Carolina, Georgia, . Ten- 

 nessee, Florida, Alabama, Mississippi, Louisiana, Arkan- 

 sas, Oklahoma and Texas : 



Tulip Norway maple Willow oak 



Sycamore Scarlet maple White pine 



Pin oak Red elm Longleaf pine 



Scarlet oak American white elm Magnolia 



White oak Kentucky coffee tree Live oak 



Black oak American linden Cedar of Lebanon 



Red oak Red gum American holly 



White ash Black gum 



Bald cypress Hackberry 



For Wisconsin, Minnesota, North Dakota, South 

 Dakota, Nebraska, Kansas, Colorado, Wyoming, Mon- 

 tana and Idaho : 



Bur oak Hackberry Austrian pine 



Linden Honey locust White pine 



Norway maple Black locust Norway spruce 



WHdVherry Less desirable : %%%* *> 



Larch Cottonwood Red cedar 



American elm Box elder Arbor vitae x 



Black walnut Scotch pine 



For New Mexico, Arizona, Utah and Nevada: 



Hackberry Bur oak Box elder 



Honey locust Valley cottonwood Arbor vitae 



Green ash Mountain cotton- Deodar cedar 



American elm wood Box 



Black locust Mountain ash Euonymus 



For California, Oregon and Washington : 

 Deciduous Trees. 



COAST REGION 



Large leaved European linden Sycamore 



maple Weeping willow 

 COLUMBIA BASIN 



Norway maple Sycamore Russian poplar 



European linden Green ash White willow 

 Silver poplar 



Evergreens. 



Deodar cedar Monterey cypress Lawson cypress 

 Monterey pine Bigtree 



