168 



IKJURIOTJS INSECTS 



the trnnk and larger branches. Many of these can be 

 destroyed by scraping off and burning the scales. 



4th. If all precautions have been neglected and the 

 eggs have been permitted to hatch, then, as soon as the 

 worms are large enough to be easily seen, jar them from 

 the trees and sweep them away with a pole, as they hang 

 by their threads, and burn or otherwise destroy them. 



5th. If the worms have matured and gone into the 

 ground for winter quarters, plow the ground late in the 

 fall, so as to expose the pupge to frost, and to the action 

 of natural enemies." 



The rope and tin bands mentioned in the first para- 

 graph are deserving of particular attention, as they have 

 been found to be an almost perfect barrier to the ascent of 

 the moths. The method of putting on these bands is very 

 simple. Take a piece of inch rope — old worn out rope is 

 as good as new — tack one end to the trunk, two 

 feet or less from the ground, with a shingle nail, driven 

 in so that the head shall not project beyond the level of 

 the rope. Bring the rope around the tree, and let it lap 

 by the beginning an inch or two, cut it olf and fasten it 

 in the same manner. Get the tinman to cut up some 

 sheets of tin into strips four inches wide and fasten them 

 together endwise, so that they shall be long enough to go 

 around the trees over the rope band, having the rope at 

 the middle. Let the ends of the tin lap a little, punch 

 a hole through them and fasten them with a nail driven 

 through the tin and rope into the tree. The result of 

 this contrivance is, that the moths congregate below the 

 obstruction, and sometimes pile up so as to go over on 

 the tin. But when they reach the upper edge of the tin 

 they go round and round until they become discouraged. 

 A great deal of ingenuity has been displayed in the con- 

 trivance of barriers of various kinds for preventing the 

 female Canker-worm moth from ascending the trees. A 

 pin-maker in Connecticut made a barrier of several rows 



