392 BOARD OF AGRICULTURE. [Pub. Doc. 



petent men and carefully watched, and it is difficult to 

 secure, for a month only, a sufficient number of workmen 

 and foremen competent to conduct a great amount of this 

 work. 



When the caterpillars begin to cluster, burlapping may be 

 done to advantage and it is certainly very effectual. In 

 order that the burlaps may attract the largest number of 

 caterpillars, it is necessary to at least remove the under- 

 growth and dead limbs from the ground. This should be 

 done, whatever method is adopted, for the undergrowth 

 facilitates the escape and distribution of the caterpillars. 

 In order to secure extermination in the woodland colonies, 

 the dead branches and loose bark must be removed from 

 certain trees, cavities must be closed, and a careful search 

 for eggs in the fall must follow burlapping or spraying. 

 This search will then be a comparatively light task, for, if 

 the burlaps are put on early and carefully attended, or ]f the 

 trees have been successfiilly sprayed, comparatively few 

 moths will be left to deposit eggs. To guard against cater- 

 pillars, resulting from possible scattered eggs, the trees must 

 be burlapped the following year. 



All these methods may be used in woodland, as circum- 

 stances require, and by a proper combination of them the 

 best results may be secured at the least expense. To secure 

 extermination, however, the work must be preceded and sup- 

 plemented by a thorough and careful search for eggs, pupoe, 

 moths and caterpillars in their season, and it is by this search 

 that the final extermination of the moth in wood colonies has 

 been secured and verified. 



Birds which feed on the Gypsy Moth. 



During the past few years observations which have been 

 made on our native bird enemies of the gypsy moth have 

 given us a list of birds all of which are more or less useful 

 in destroying the moth in some of its forms. The list of 

 birds observed to feed upon the moth has been increased 

 from year to year, as the moth has appeared in different 

 localities. Wherever the moth swarms, some birds will be 

 found to feed upon it. When it appears in the woods, more 



