100 
both for shelter and for food. a thorough coating with 
one of the above substances will kill them. If one appli- 
cation is not sufficient, another should be made about a week 
or ten days later. The first one might be made in the propor- 
tion of one pound of the poison to 160 gallons of water, the 
second in the proportion of one pound to 200 gallons of water. 
As the caterpillars are not very great travelers, the evil does 
not spread rapidly, until the moths emerge. They are, of 
course, able to fly and to start new colonies in distant places. 
Another remedy is to cover up the eggs or surround them so 
that the young larvee just hatched will be unable to reach the 
leaves. This may be done with a thick wash of lime on the 
trunk and larger limbs. The eggs are so well protected by the 
overlapping scales that any penetrating oil as kerosene would 
probably be useless. 
Concerted action is necessary to save our Gre shade trees, 
and as the owners of a few trees can not be expected to 
possess machines to apply remedies, the city authorities, per- 
haps the Park Commission, should take this work in charge 
by appointing some capable person or persons to carry out 
their instructions. 
APPLE-TREE LEAF- FOLDER. 
(Cacecia rosaceana Harr. ) 
Apples and roses are also very frequently infested with a leaf- 
rolling caterpillar belonging to the family of Tortricidz. In 
some seasons the Russian apples are injured to such an extent 
as to lose all their leaves, and are forced to do two years labor 
in one, which is of course very weakening to these plants. 
Roses that are not constantly watched will soon lose most of 
their leaves by such insects. Early and repeated applications 
of Paris-green or London-purple would prevent all these 
damages. . 
THE SWEET-CORN MOTH OR TASSEL-WORM. 
(Heliothis armiger Hbn. ) 
During the latter part of the summer of 1895 many reports 
were received in which complaints were made about caterpil- 
lars found inside the husks of corn, chiefly of sweet corn. 
These caterpillars feasted upon the young kernels still in their 
