New Yorx AGRICULTURAL EXPERIMENT STATION. 311 
one-fourth grown and of but little avail if the application is de- 
layed until after they are half grown. 
Second, destroying the caterpillars when they have assembled 
upon the trunks or large branches.— This may be done in any con- 
venient way. <A very easy way is to crush them with an old broom 
which, to insure the death of all the caterpillars it touches, has 
been dipped in kerosene oil. The kerosene oil is fatal to them, 
and if preferred may be sprayed directly upon them. 
Third, jarring and banding.— Jarring is seldom practical ex- 
cept with small trees. The tree should be given a few quick, sharp 
raps with a padded mallet. The caterpillars will drop at once 
and may be collected and destroyed in curculio carts or upon 
sheets spread upon the ground. 
Banding is for the purpose of preventing those caterpillars that 
have been jarred off by the wind, or by birds, or have left the tree 
during the restless period just previous to-pupating, from again 
ascending the trunk; also to protect the trees from invading 
caterpillars, especially when the orchard is situated near infested 
shade or forest trees. ‘The bands may be made of cotton wool in 
which the caterpillars will become entangled, or better by some 
sticky substance such as tar mixed with two parts of raw oil, or 
with raupenleim. Hither of these substances should be smeared 
upon bands of paper at least a foot wide which can be tied around 
the trunks of the trees. By using the paper there is no danger of 
injury to the bark. Sticky fly paper is sometimes successfully 
used in the same way. ‘The caterpillars will be caught upon 
these bands and soon die. Where the caterpillars are very 
abundant, so many will be caught upon the bands that other cater- 
pillars can crawl safely over them. In such an event new bands 
will have to be applied or the originals made wider. Of these 
sticky substances raupenleim is one of the best. It can be obtained 
of William Meuzel & Co., 64 Broad St., New York, and the Bow- 
ker Fertilizer Co., Boston. It should never be applied directly 
to the bark. 
