farmers' bulletin 846. 



priation was made by Congress for suppressing it, and the Secre- 

 tary of Agriculture was authorized to take all possible measures to 



Fig. 1.— Map showing area infested by and quarantined for the gipsy moth and the brown-tail moth in 

 New England, 1917. Shaded area infested by the gipsy moth; area cast of heavy line infested by the 

 brovn-tail moth. 



prevent its spread. Since that time work has been carried on each 

 year. The area now known to be infested is shown m figure 1. 



li 



