THE 11R0WN-TAIL MOTH. 
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caterpillars below them removed or destroyed. If not de- 
stroyed they will often leave the trees for shrubbery, where 
it is more difficult to cope with them, and will transform 
to moths. "Insect lime, raupenleim, tanglefoot, bodlime, 
printer's ink, or even axle grease are among the materials 
Fig. 34.— Young Brown-Tail Moth caterpillars which have skeletonized an 
apple leaf in early September. Greatly enlarged. 
more used for banding. All may be dangerous to the tree 
and should be removed after the caterpillar season has 
passed." (Kirkland.) Possibly the most satisfactory and 
safest substance is printer's ink applied as a band on heavy 
building paper, beneath which is placed a band of cotton 
