412 Report OF THE DEPARTMENT OF ENTOMOLOGY OF THE 
an inch to an inch and a half long. The eggs are firmly held 
together by the tough material that gives the mass its frothy 
appearance, and most of the clusters are located in plain view 
on the trunks and branches of the trees, where they may be 
easily scraped off with a hoe or other sharp instrument and 
destroyed. In this work a search should be made for egg 
clusters that are attached to the smaller branches. These 
are often partly hidden by leaves that are attached to the 
cocoon on which the cluster has been deposited. The egg 
masses should be collected some time during the fall and 
winter or in the spring before the first of May. In the southern 
part of the State and on Long Island, where there are two 
broods of the insect, a summer collection of eggs should be 
made. 
2. Spraying with arsenicals.— Next to destroying the eggs, 
the use of arsenical sprays is the most efficient means of 
preventing injury by this pest. More care in coating the 
undersides of the leaves than is usually observed in the regular 
applications of bordeaux mixture and poison that are made 
preceding and at blossoming time, would do much to prevent 
an outbreak of this and other leaf-feeding pests. However, 
if the caterpillars are not discovered until they have begun 
to eat into the fruit, it is advisable to use larger amounts of 
the poison than is customary in spraying for the codling moth. 
In making the application precaution should be taken to coat 
the fruit and both surfaces of the leaves with the spraying 
mixture. 
3. Jarring the trees—— The foliage and fruit of small trees 
or even occasional branches of large trees that are being 
injured by the caterpillars may be saved from further loss 
by shaking. When the branch is jarred, the caterpillar sus- 
pends itself by a strand of silk, and will drop to the ground 
if the shaking be continued. A padded mallet or pole can be 
used to jar the branches, and the insects, as they drop, may 
be caught on a sheet or curculio catcher. This is a slow, 
tedious method of combating the pest, but by this means 
further injury to the fruit crop may often be prevented. 
