early in spring and cause defoliation. Most caterpillars 
will feed on its foliage, and a serious trunk rot of the 
London Plane has been found in the East. In addition to 
these disadvantages, it sheds some "fuzz" from the open- 
ing buds which is quite irritating to the nose and throat. 
TULIP TREE 
The Yellow Poplar or Tulip Tree {Liriodendron 
Tulip if era) is a very satisfactory shade tree in the 
Middle West. It can be used on the street as well as the 
lawn. It grows to immense size and it is one of the im- 
portant forest trees. The square-cut leaves are distinc- 
tive. The flowers are large and they alone would make 
the tree an outstanding ornamental except that they are 
produced at a time when the tree is in full leaf and they 
are hidden by the foliage. The tree has a number of leaf 
spots and is not entirely free of insect injury, but in 
spite of no care, individual trees are able to live a 
long time. It is not a tree for the small garden, and 
may spread too much for the narrow street, but it has a 
definite -place and will be very satisfactory along boule- 
vards and parkways. The most serious objection to its 
use might be the brittleness of the wood during a sleet 
storm, but in this respect, it is not as dangerous as 
some of the trees commonly planted along the streets, 
will not grow on the poorest site; some mois" 
fair degree of fertility are necessary for good growth. 
street trees being killed by serious dis- 
eases, it is high time that the Tulip Poplar be given a 
chance to demonstrate its value. 
ure 
ommon 
WALNUT 
• 
It may seem strange that one should propose the Wal- 
nut (Juglans nigra) as a shade tree, but trial would 
prove that it is quite at home on the streets and that iz 
would be a magnificent dooryard tree. It has certain very 
definite advantages not shared by any other tree. Fir 
of all, Blue Grass can be grown up to the very trunk, 
which cannot be done with many other trees, ^econdly^^i 
produces its greatest amount of shade in mid- 
it is needed the most. Ordinarily, the leaf buds open 
late in spring, thus, the grass gets a good start beio 
the tree beings to cast much shade. The reverse ^s true 
in fall. The Walnut is one of the first trees to shea 
summer 
25 
