74 FIELD WORK AGAINST GIPSY AND BKOWN-TAIL MOTHS. 



worthless trees, and if possible to leave for reforesting purposes 

 vigorous specimens of ash, maple, pine, or coniferous trees of which 

 the insect is not especially fond and which can be protected with the 

 least possible expense. (See fig. 21 .) 



The planting or preservation of ash and hickory is recommended 

 as the wood is of high value and these trees are not subject to attack 

 by the brown-tail moth. Planting pine or other coniferous trees for 

 reforesting purposes is also advisable, as the region is suited to their 

 growth and these can be protected from moth injury at slight expense. 



It is probable that many of the forests containing oak or other 

 trees which are preferred by these insects must in time give way 

 to species less subject to attack. In the meantime the owner 

 should take advantage of the opportunity to harvest his merchant- 



FiG. 20.— Neglected apple orchard in which the trees have been killed by the gipsy moth. (Original.) 



able trees that are susceptible to attack and foster tlic growth of 

 other species that will not be destroyed. 



In cities and towns much progress can be made by cutting out 

 neglected areas of worthless trees and in some sections the number 

 of trees on the streets or on private property can be reduced and still 

 provide as much shade as is desirable. If this work is intelligently 

 done no injury will result to the property; in fact, a direct benefit 

 will accrue and the cost of future work required to hold the moths 

 within reasonable bounds will be greatly decreased. 



THE OUTLOOK. 



At the time the work on the gipsy moth was abandoned by the 

 State of Massachusetts in 1900, over $1,000,000 had- been spent in 

 an attempt to exterminate the pest. Since the work was resumed in 

 1905 nearly $4,000,000 has been expended by the different States in 



