34 GYPSY AND BROWN-TAIL MOTHS. [Jan. 



has been well done. The possibility of the caterpillars migrat- 

 ing from private estates is also eliminated to a great extent. 

 In many of the cities and towns work has been done in the 

 most important woodland colonies, especially those bordering 

 on residential sections, in order that reiiifestation of cleaned 

 estates shall not occur, and the results of previous work thus 

 be lost. In some of the farming sections, where the gypsy 

 moth infestation is serious, the work is greatly handicapped 

 by the large numbers of worthless apple trees, which should be 

 removed or in which the cavities should be filled up, in order 

 that good results may be obtained. These conditions require 

 a large expenditure of money, and exist in towns of low 

 valuation, where the liability is small, thus necessitating 

 that the State provide a large part of the funds for the work 

 to be done. It consequently results that our appropriation 

 will allow us to do but a limited amount of this work each 

 year. It is hoped that the property owners in sections where 

 these conditions exist will co-operate as much as possible with 

 the local authorities, and that they will follow our suggestion, 

 that a few good trees are better than a large number of poor 

 ones. If the owners will act on this suggestion and give such 

 assistance as they can, a great deal more spraying can be done, 

 the quality of the fruit will be better, and in time the farm- 

 ers will profit financially. In other localities there are immense 

 tracts of woodland, which handicap both the State and the town 

 in making the necessary progress ; and in such places the only 

 practical work to be done is to make protective belts, so that the 

 caterpillars will not migrate to adjoining property now under 

 control and increase the infested area. Large tracts of white 

 pine growth can be handled very easily by removing the decidu- 

 ous trees and banding the pines with tanglefoot. This treatment 

 has been thoroughly investigated, and is believed to be perfectly 

 safe. 



The gypsy moth infestation over the entire State may be di- 

 vided into three distinct classes: viz., severe, general, and slight. 

 In the severely infested section a large expenditure of money 

 has been made, as it was necessary that thorough work should 

 be done in order to control the spread of the gypsy moth. In 

 this section are comprised some of the wealthiest towns in the 



